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07155SL - Toro Media

1. Figure 1 1 Driven pulley 4 Bearing housing 4 used 7 Coupler assembly 3 used 2 1 stomper arm 5 Crankarm 2 4 6 4 used 8 Counter weight 3 8 stomper arm 6 Crankarm 3 5 3 used Coring Head Page 4 4 ProCore 864 1298 Operation The coring head of the ProCore 864 consists of a frame a coring crankshaft assembly turf holders tine holders and aerating tines The crankshaft assembly operates eight 8 stomper arms with rotolink assemblies to pro vide vertical tine motion The coring head frame pivots to allow aerating depth control Drive for the coring head comes from the tow tractor PTO A gearbox on the ProCore is turned by a driveshaft connected to the tractor PTO The gearbox provides rotation for the coring head crankshaft assembly The gearbox rotates a single driveshaft which in turn ro tates a pulley to drive the coring crankshaft assembly with a 4 groove drive belt This drive belt is tensioned by a spring loaded idler pulley The coring crankshaft is composed of multiple crank arms bearings bearing housings and couplings The crankshaft assembly is designed to ensure minimal vibration during aerator operation Aeration depth control is performed by adjusting the cor ing head depth control assembly to obtain the desired aerating depth Turf holders are used to prevent damage to the turf as the tines are lifted from the ground
2. 78 7 mm DIAL INDICATOR SOFT JAWED VISE Figure 42 GEAR PATTERN REQUIREMENTS 0 118 3 0 mm MINIMUM 0 118 3 0 mm MINIMUM 40 to 80 of Tooth Width TOE 20 to 50 of Heigh Tooth Height 0 197 5 0 mm MINIMUM 9 Apply a light coating of grease on seal lips and seal OD Install seals into gearbox bores taking care to not damage seals during installation Seals should be installed until they are flush with the housing Figure 44 3 Gasket location 4 Soft shim location 1 Input gear and shaft 2 Cross shaft Coring Head Page 4 44 ProCore 864 1298 This page is intentionally blank TORO Commercial Products The Toro Company
3. B Install inner bearing cone fully onto shaft C Slide shaft into housing D Slide outer bearing cone onto shaft E Install retaining shim and then lock nut onto shaft Make sure that tab on retaining shim is aligned with slot in shaft F Tighten lock nut until shaft has from 0 001 to 0 003 0 03 to 0 07 mm end play Secure lock nut in place by bending a locking tab on retaining shim into one of the slots in the lock nut 5 Lightly grease O ring item 16 and install into groove of quill housing NOTE Gaskets item 15 are used to adjust gearbox backlash During assembly install same number of gas ket s as were removed 6 Position gasket s to quill housing and install hous ing assembly into gearbox housing Make sure that gear teeth mesh properly with gear on cross shaft Secure quill housing with six 6 flange head screws Torque screws 81 ft Ibs 109 N m 7 Check gearbox backlash Fig 42 A Clamp the output shaft of gearbox in a soft jawed vise B Lightly clamp a pair of locking pliers onto the gearbox input shaft Coring Head o o oO lt je i fe Oo C Mount a dial indicator with a magnetic base to the vise so that the dial indicator touches the pliers 3 100 78 7 mm from the center of the input shaft D Rotate the pliers and monitor the dial indicator reading to check gearbox backlash Allowable back lash is from 0 006 to 0 013 0 16 to 0 33 mm E If
4. Cap screw 2 used Coupling plate Cap screw 4 used Lock nut 2 used Flat washer 2 used 4 Raise stomper arm assembly up through coring head frame Slide stomper arm onto coring crankshaft PUNH onen 5 Secure stomper arm to coring crankshaft in the re verse order of disassembly A Torque grade 5 5 8 cap screws item 4 Fig 11 from 150 to 170 ft Ib 204 to 230 N m B Torque grade 8 5 8 cap screws item 1 Fig 7 from 210 to 230 ft Ib 285 to 311 N m C Torque 1 2 cap screws item 6 Fig 11 from 70 to 80 ft Ib 95 to 108 N m 6 Secure rotolink damper to coring head frame with two 2 lock nuts and hardened D washers Fig 9 see Rotolink Damper Assemblies in this section 7 After assembly rotate coring crankshaft by hand to make sure that no binding occurs 8 If removed install tine holders and tines to stomper arm see Operator s Manual 9 If removed install coring head drive belt see Coring Head Drive Belt Installation in this section 10 Install rear hood Coring Head Page 4 14 ProCore 864 1298 This page is intentionally blank o o oO lt je i fe Oo ProCore 864 1298 Page 4 15 Coring Head Coring Crankshaft Bearing Housings ProCore 864 210 to 230 ft lb 285 to 311 N m ANTISEIZE LUBRICANT 70 to 80 ft lb 95 to 108 Nom 14 210 to 230 ft Ib 285 to 311 N m Figure 12 1 Cap screw 10 Square key 18 Coring
5. Grease fitting PON oP PND Chassis Page 3 2 11 Bolt 12 Hex nut 13 Set screw 14 Hitch frame ProCore 864 1298 Roller Removal Fig 1 1 Position aerator on a firm level surface with aerator attached to tractor Disengage PTO apply tractor park ing brake stop engine and remove key from the ignition switch Support aerator to prevent it from moving 2 Chock roller to prevent it from moving 3 Loosen flange bearings from roller shaft A Loosen set screw item 2 1 that secures each bearing locking collar to roller shaft B Using the blind hole in bearing locking collars as a striking point unlock collars from roller shaft by rotat ing the collars with a punch in the opposite direction of normal roller rotation 4 Remove two 2 cap screws and lock nuts that se cure both flange bearings item 2 to aerator frame 5 Start engine on tow vehicle Slowly raise aerator while allowing roller to remain on the ground Stop tow vehicle engine Support raised aerator to prevent it from lowering unexpectedly To prevent personal injury make sure that roll er is supported as it is removed from the ma chine Roller weighs approximately 133 pounds 60 kg 6 Remove roller with flange bearings from under ma chine 7 Slide bearings from roller shaft ProCore 864 1298 Page 3 3 Roller Installation Fig 1 1 Clean roller shaft ends and apply antiseize lubricant to shaft ends Slide bearing
6. nance and storage of the machine Improper use or maintenance of the machine can result in injury or death To reduce the potential for injury or death comply with the following safety instructions Before Operating 1 Read and understand the contents of the Operator s Manual before starting and operating the aerator Be come familiar with the controls and know how to stop the machine quickly A replacement Operator s Manual is available on the Internet at www Toro com or by sending the complete model and serial number to The Toro Company Attn Technical Publications 8111 Lyndale Avenue South Bloomington Minnesota 55420 1196 2 Keep all shields safety devices and decals in place If a shield safety device or decal is defective illegible or damaged repair or replace it before operating the machine Safety Page 1 2 44 WARNING To reduce the potential for injury or death com ply with the following safety instructions 3 Make sure that the tractor is carefully selected to as sure the best performance and safe operation of the ProCore aerator 4 Make sure that operator is familiar with safe tractor operation 5 Tighten any loose nuts bolts or screws to ensure machine is in safe operating condition 6 Make sure that the ProCore aerator is properly at tached to tractor ProCore 864 1298 While Operating 1 Operator should be on the tractor when starting the engine and when operating the aera
7. 1 Position aerator on a firm level surface If attached to tractor disengage PTO apply tractor parking brake stop engine and remove key from the ignition switch 2 Remove rear hood from machine Adjust coring head depth to the deepest setting 3 Remove front cover and pulley shield from machine see Cover Removal in the Service and Repairs section of Chapter 3 Chassis 4 Support the aerator to prevent the machine from moving NOTE The ProCore 1298 uses one 1 compression spring for each of its dual coring frames The ProCore 864 uses two 2 compression springs for its single cor ing frame THE CORING HEAD FRAME IS SPRING LOADED To prevent possible personal injury use com pression spring tool see Special Tools to re move compression spring s before disassem bling the coring head pivot 5 Use compression spring tool see Special Tools to remove compression spring s from coring head frame A Install compression spring tool threaded rod through holes in each spring cup item 1 then install washer and nut on both ends of rod B Tighten upper nut on rod to compress spring item 2 C With tool compressing the spring carefully lift bottom of spring slide it from coring head frame low er from hitch frame and remove from machine D If working on ProCore 864 repeat for second compression spring 6 Make sure that machine is well supported with jack stands or blocking The ProCore 864 co
8. 112 15 16 0 9375 23 812 29 64 0 453125 11 509 61 64 0 953125 24 209 15 32 046875 11 906 31 32 0 96875 24 606 31 64 0 484375 12 303 63 64 0 984375 25 003 1 2 0 5000 12 700 1 1 000 25 400 1 mm 0 03937 in 0 001 in 0 0254 mm U S to Metric Conversions To Convert Into Multiply By Linear Miles Kilometers 1 609 Measurement Yards Meters 0 9144 Feet Meters 0 3048 Feet Centimeters 30 48 Inches Meters 0 0254 Inches Centimeters 2 54 Inches Millimeters 25 4 Area Square Miles Square Kilometers 2 59 Square Feet Square Meters 0 0929 Square Inches Square Centimeters 6 452 Acre Hectare 0 4047 Volume Cubic Yards Cubic Meters 0 7646 Cubic Feet Cubic Meters 0 02832 Cubic Inches Cubic Centimeters 16 39 Weight Tons Short Metric Tons 0 9078 Pounds Kilograms 0 4536 Ounces Avdp Grams 28 3495 Pressure Pounds Sq In Kilopascal 6 895 Pounds Sq In Bar 0 069 Work Foot pounds Newton Meters 1 356 Foot pounds Kilogram Meters 0 1383 Inch pounds Kilogram Centimeters 1 152144 Liquid Volume Quarts Liters 0 9463 Gallons Liters 3 785 Liquid Flow Gallons Minute Liters Minute 3 785 Temperature Fahrenheit Celsius 1 Subract 32 2 Multiply by 5 9 Product Records and Maintenance Page 2 2 ProCore 864 1298 Torque Specifications Recommended fastener torque values are listed in the following tables For critical applications as determined by Toro either
9. 19 2 ft lb Thread Size 38 4 ft lb 66 7 ft lb 166 15 ft lb 325 33 ft lb NOTE Torque values may have to be reduced when installing fasteners into threaded aluminum or brass The specific torque value should be determined based on the fastener size the aluminum or base material strength length of thread engagement etc ProCore 864 1298 26 3 N m 52 5 N m 53 5 ft lb 7247 N m 90 10 N m 92 9 ft lb 125 12 N m 225 20 N m 229 22 ft Ib 310 30 N m 440 45 N m 450 37 ft lb 610 50 N m Page 2 5 27 2 ft lb 36 3 N m NOTE The nominal torque values listed above are based on 75 of the minimum proof load specified in SAE J1199 The tolerance is approximately 10 of the nominal torque value Product Records and Maintenance Product Records a f 2 S o Other Torque Specifications SAE Grade 8 Steel Set Screws Recommended Torque 140 20 in Ib 73 12 in Ib Thread Size 1 4 20 UNC 5 16 18 UNC 215 35 in Ib 145 20 in Ib 3 8 16 UNC 35 10 ft Ib 1 2 13 UNC 75 15 ft lb 50 10 ft Ib 18 3 ft lb Thread Cutting Screws Zinc Plated Steel Type 1 Type 23 or Type F Thread Size Baseline Torque No 6 32 UNC 20 5 in Ib No 8 32 UNC 30 5 in Ib 1 4 20 UNC 85 15 in Ib 5 16 18 UNC 110 20 in Ib 3 8 16 UNC 200 100 in Ib No 10 24 UNC 38 7 in Ib Conversion Factors in
10. 5 ao ear a CQUping Pagi d 1S0 moun use F ap screw use centered between bearings 3 Coupling 2 shown 7 Lock nut 2 used 4 Cap screw 2 used 8 Flat washer 2 used ProCore 864 1298 Page 4 21 Coring Head 2 Apply antiseize lubricant liberally to crankarm splines and journals 3 Install crankarms into bearing housing Make sure that correct identification number on crankarm is aligned with timing mark on bearing housing Fig 19 4 Install cap screw item 1 and flat washer item 2 to retain crankarms Do not fully tighten cap screw 5 Drive new spring pins item 11 into coring head frame holes 6 Position bearing housing assembly to coring head frame 7 Secure bearing housing to frame with four 4 cap screws eight 8 hardened washers and four 4 lock nuts Torque fasteners from 70 to 80 ft Ib 95 to 108 N m 8 Install stomper arms and couplings to crankarms on both sides of bearing housing see Stomper Arm Instal lation in this section Do not fully tighten fasteners 9 Make sure that when 1 crankarm at pulley is aligned with cast mark on bearing housing all subse quent crankarm cast timing numbers are in numerical order Fig 19 10 Once all stomper arm and crankarm components have been installed fully tighten fasteners in the follow ing order Fig 21 Tighten fasteners to the torque speci fications identified in Figures 17 and 20 A Cap screw used to secure crankarms B Cap sc
11. A variety of tines tine heads and turf holders are avail able for use on the ProCore 864 See the Operator s Manual for available options Coring Crankshaft Fig 1 The coring crankshaft assembly is composed of eight 8 crankarms The crankarms are timed for proper aer ating operation Coring crankshaft positions are identi fied based on their relationship with the crankshaft driven pulley The 1 position is at the pulley side of the crankshaft Fig 1 ProCore 864 1298 Page 4 5 The crankshaft assembly is supported with four 4 iden tical bearing housing assemblies Each bearing housing supports two 2 crankarms The crankarm used in the 1 crankshaft position is in corporated into the driven pulley The remaining odd numbered crankshaft positions 3 5 and 7 use the same crankarm These crankarm castings can be iden tified with the numbers 3 and 5 in the castings Cran karms used in even numbered crankshaft positions 2 4 6 and 8 are the same component These cran karms can be identified with the numbers 2 4 and 6 in the crankarm castings Three 3 coupler assemblies are used to connect the crankarms that are secured in the bearing housings These coupler assemblies use the same components a 2 coupling a 3 coupling a coupling plate two 2 iso mounts and necessary fasteners The 2 couplings attach to even numbered crankarms The 3 couplings are secured to odd numbered crankarms Two counter
12. Ib X 11 2985 N cm ft Ib X 1 3558 N m Product Records and Maintenance Page 2 6 Wheel Bolts and Lug Nuts Thread Size Recommended Torque 7 16 20 UNF 65 10 ft lb 88 14 N m Grade 5 80 10 ft lb f 108 14 N m 1 2 20 UNF Grade 5 M12X 1 25 80 10 ft lb 108 14 N m Class 8 8 M12X 1 5 80 10 ft lb 108 14 N m Class 8 8 For steel wheels and non lubricated fasteners Thread Cutting Screws Zinc Plated Steel Threads per Inch Size Baseline Torque Type A I Type B No Amen f Hole size material strength material thickness amp finish must be considered when determining specific torque values All torque values are based on non lubricated fasteners No 8 N cm X 0 08851 in Ib N m X 0 7376 ft Ib ProCore 864 1298 Chapter 3 TORO Chassis Table of Contents SERVICE AND REPAIRS 222220225 2 Roller 222 220448 prank ke PE pha naaa 2 Turf Guards kerien a ERE EA REE 4 Front Covers ProCore 864 6 Front Covers ProCore 1298 8 Hitch Frame ProCore 1298 10 ProCore 864 1298 Page 3 1 Chassis Service and Repairs Roller PROCORE 864 SHOWN ANTISEIZE LUBRICANT ANTISEIZE LUBRICANT Figure 1 Roller Carriage screw 2 used per arm Flange bearing 2 used Flange nut Cap screw 2 used per bearing Lock nut 2 used per bearing Scraper arm 2 used Roller scraper Compression spring 0
13. adjusting idler nut item 16 until compression spring length is 5 750 145 mm Secure idler nut location with lock nut item 15 5 Raise rotolink damper for 1 stomper arm to coring head frame Make sure that damper standoffs and bumper are on damper studs Secure damper to coring head frame with two 2 D washers and lock nuts see Rotolink Damper Assembly in this section 6 Make sure that tinnerman nuts item 1 flat washer item 8 and cap screw item 9 are on frame Position belt guard to machine Secure belt guard to support with flange nut item 7 two 2 flange head screws item 6 and flat washers item 5 7 Install pulley shield to machine see Cover Installa tion in the Service and Repairs section of Chapter 3 Chassis 8 Install rear hood to machine ProCore 864 1298 Page 4 25 ba Pag Figure 24 2 1 stomper arm 1 Drive belt o aD oO oO Figure 25 1 Drive belt 2 1 rotolink damper 145 mm Figure 26 1 Idler pulley 4 Idler nut 2 Drive belt 5 Lock nut 3 Compression spring Coring Head Coring Head Drive PROCORE 864 SHOWN 28 Pulley support Pulley shaft Bearing 2 used Bearing spacer Shim washer Pulley Flat washer Cap screw Spacer tube 10 Spring mount 11 Washer 12 Cap screw SONDAAYNA 13 14 15 16 17 18 19 20 21 22 23 24 Figure 27 Flange bushing 2 used Pivot sleeve Idler arm Flat was
14. and bearings 5 Tube and yoke Ne 3 Shaft and yoke 6 Grease fitting Coring Head Page 4 36 ProCore 864 1298 5 If necessary remove guards from PTO driveshaft Fig 38 PTO DRIVESHAFT A Press clip end and rotate clip from guard B Rotate bushing to disengage bushing from guard C Slide guard from driveshaft D Remove bushing from groove in yoke Clean bushing and groove Installation Fig 35 1 Apply antiseize lubricant to shaft surfaces Figure 37 1 Safety slide lock yoke 5 Inner guard 2 If driveshaft halves were separated note that splines 2 Si and bearings 6 Tube and yoke A ae 3 Shaft and yoke 7 Endyoke on shaft and tube have a blind spline to ensure align 4 Oller guard ment of end yokes when the driveshaft is assembled Align blind spline in shaft and tube when assembling dri veshaft halves 3 Install guards to PTO driveshaft if removed Fig 38 A Grease bushing groove in yoke and install bush ing into groove B Slide guard onto driveshaft and insert guard openings over bushing tabs C Rotate bushing to engage bushing tabs and guard o aD T o oO D Secure bushing and guard by pushing the clip into guard 4 Position driveshaft to aerator A Coring head driveshaft should be installed with slip tube yoke to gearbox Fig 36 B PTO driveshaft should be installed with safety slide lock yoke toward tractor Fig 37 5 Align splines of driv
15. clean and inspect all components 4 To install new cross and bearings A Apply a coating of grease to bearing bores of end yoke and shaft yoke Also apply grease to bearings and seal of bearing assembly Make sure that all bearing rollers are properly seated in bearing cage B Press one bearing partially into yoke IMPORTANT Take care when installing cross into bearing to avoid damaging bearing seal C Carefully insert cross into bearing and yoke D Hold cross in alignment and press bearing in until it hits the yoke E Carefully place second bearing into yoke bore and onto cross shaft Press bearing into yoke F Install snap rings to secure bearings in place G Repeat procedure for other yoke H Grease cross until grease comes out of all four 4 bearing cups Coring Head Page 4 38 5 Make sure that assembled joint moves without bind ing Slight binding can usually be eliminated by lightly rapping the yoke lugs with a soft faced hammer If bind ing continues disassemble joint to identify source of binding 6 If driveshaft halves were separated during cross and bearing service note that splines on shaft and tube have a blind spline to ensure alignment of end yokes when the driveshaft is assembled Align blind spline in shaft and tube when assembling driveshaft halves 7 Install driveshaft to aerator see Driveshaft Installa tion in this section Figure 39 1 End yoke 2 Cross and bearing k
16. from turf guard Installation Fig 2 1 If rib neck screws were removed from turf guard use press to install screws into turf guard Make sure that screw heads are flush with turf guard surface 2 Assemble turf guard and spring assembly as needed using Figure 2 as a guide If spring assembly was taken apart use dimensions shown in Figure 4 during the as sembly process 3 Make sure that keyed flange bushing item 16 is cor rectly placed in each end of turf guard Position turf guard assembly to aerator ProCore 864 1298 Page 3 5 NOTE On ProCore 864 machines there is one 1 thrust washer on each side of the turf guard On ProCore 1298 machines there are two 2 thrust washers on each side of turf guard Fig 3 4 Place thrust washer s between each side of turf guard and frame 5 On both sides of frame slide turf guard pivot shafts through frame and into turf guard Secure pivot shafts to frame with two 2 carriage screws and flange nuts 6 Connect spring assembly to turf guard A Slide end of cap screw item 11 through bracket on turf guard B Secure spring assembly to turf guard with flange nut Figure 3 1 Turf guard 3 Thrust washer 2 Stub shaft 2 410 to 2 530 61 2 to 64 2 mm 5 940 to 6 060 150 9 to 153 9 mm aOR N Figure 4 Chassis Front Covers ProCore 864 Figure 5 1 Front cover 8 Tinnerm
17. is supporting coring frame 5 Remove compression spring tool from coring head compression spring s A Loosen lower nut on threaded rod to allow spring item 2 to extend Make sure that upper spring cup item 1 extends into spring seat on hitch frame B Remove compression spring tool components threaded rod washers and nuts from spring C If working on ProCore 864 repeat for second spring 6 Adjust aerator to desired depth setting 7 Install front cover to machine see Cover Installation in the Service and Repairs section of Chapter 3 Chas sis 8 Install rear hood to machine Figure 33 2 Lifting eyelet 1 Bearing housing Coring Head o O I D a lt o oO Depth Control Assembly Service Figure 34 1 Flange head screw 10 Depth control shaft 19 Plain washer 2 Flat washer 11 Flange bushing 20 Gasket 3 Depth control gage 12 Thrust bearing 21 Cover 4 Oil seal 13 Thrust washer 22 Lock plate 5 Depth control hub 14 Worm 23 Flange head screw 6 used 6 Plug 15 Worm gear spacer 24 Key 7 Oil seal 16 Bearing washer 25 Adjustment shaft 8 Shoe 17 Thrust bearing 26 Decal 9 Hairpin clip 18 Worm gear Coring Head Page 4 34 ProCore 864 1298 Disassembly Fig 34 1 Remove flange head screw item 1 flat washer item 2 and depth control gage item 3 from top of depth control shaft 2 Remove hairpin clip item 9 and shoe item 8 from bottom of
18. to PROCORE 864 coupling on stomper arm to be removed Fig 11 Figure 10 1 Stomper arm 8 3 Counter weight coupling and stomper arm to coring crankshaft 2 Crankarm B Remove cap screw and flat washer that secures C Slide coupling from coring crankshaft Locate and retrieve square key D Support stomper arm assembly to prevent it from falling during removal Slide stomper arm from cor ing crankshaft Carefully lower stomper arm assem bly from coring head frame 6 If necessary remove ball bearings bearing spacer and retaining ring from stomper arm ProCore 864 1298 Page 4 13 Coring Head 7 If necessary remove tines and tine holders from stomper arm see Operator s Manual 150 to 170 ft Ib 204 to 230 N m 8 Remove rotolink damper components from stomper arm as needed see Rotolink Damper Assemblies in this section Installation Fig 7 and 11 1 If bearings were removed from stomper arm install retaining ring into groove in upper bore of stomper arm Make sure that retaining ring is properly seated in groove Position bearing spacer and press two 2 ball bearings into stomper arm bore 2 Install all rotolink damper components that were re moved during disassembly see Rotolink Damper As semblies in this section 70 to 80 ft Ib 95 to 108 N m 3 Apply antiseize lubricant liberally to crankarm shaft surface Figure 11 Coupling 3 shown Iso mount 2 used Coupling 2 shown
19. 2 Flat washer 8 Bearing housing 3 Ball bearing 2 used per arm 9 Bearing spacer 4 Retaining ring 10 Square key 5 Bearing spacer 11 Spring pin 2 used per housing 6 Stomper arm 12 Cap screw 4 used per housing NOTE The bearing housings used on ProCore 1298 aerators are identical Coring crankshaft positions are identified based on their relationship with the crankshaft driven pulley The 1 position is at the pulley side of the coring crankshaft Fig 18 IMPORTANT Before disassembling the coring crankshaft label location of components that are to be removed Correct component location and orien tation are necessary for proper aerator operation Coring Head Page 4 20 210 to 230 ft Ib 285 to 311 N m Hardened washer Lock nut 4 used per housing Crankarm Coupling Coring head frame Crankshaft driven pulley ProCore 864 1298 Removal Fig 17 1 Position aerator on a firm level surface If attached to tractor disengage PTO apply tractor parking brake stop engine and remove key from the ignition switch 2 Remove rear hood As crankshaft components are removed from machine the crankshaft will become out of bal ance and may rotate quickly creating pinch points and potential for personal injury Be cau tious when disassembling the coring crankshaft 3 If bearing housing for 1 and 2 stomper arms is to be removed remove coring head drive belt see Coring Head Dr
20. 3 Position worm gear assembly into depth control hub Slide plain washer item 19 between worm gear and control hub 4 Place inner flange bushing item 11 into depth con trol hub 5 Install components onto adjustment shaft item 25 A Slide outer flange bushing item 11 worm gear spacer item 15 thrust washer item 13 greased thrust bearing item 12 and second thrust washer onto shaft B Place key item 24 into shaft slot align worm item 14 with key and then slide greased worm onto shaft C Place thrust washer item 13 greased thrust bearing item 12 and final thrust washer onto shaft 6 Slide assembled adjustment shaft into inner flange bushing in depth control hub Make sure that inner flange bushing is still properly positioned in hub bore 7 Place gasket item 20 and cover item 21 onto depth control hub Make sure that outer flange bushing item 11 is properly positioned into cover bore Install four 4 flange head screws that surround adjustment shaft Do not fully tighten screws at this time 8 Lightly oil upper and lower oil seals Install seals into depth control hub taking care to not damage seals dur ing installation 9 Insert greased depth control shaft item 10 into bot tom of depth control hub and thread shaft into worm gear Take care to not damage seals during depth con trol shaft installation 10 Position lock plate item 22 to cover and secure with two 2 flange head scr
21. 98 Removal Fig 7 1 Position aerator on a firm level surface If attached to tractor disengage PTO apply tractor parking brake stop engine and remove key from the ignition switch 2 Remove rear hood 3 For stomper arm that is to be removed remove two 2 flange nuts and hardened D washers that secure ro tolink damper to coring head frame Fig 9 see Rotolink Damper Assemblies in this section As crankshaft components are removed from machine the crankshaft will become out of bal ance and may rotate quickly creating pinch points and potential for personal injury Be cau tious when disassembling the coring crankshaft 4 If an outside stomper arm is to be removed Figure 9 1 Rotolink damper 3 Flange nut 2 used A 1f 1 pulley side stomper arm is being removed 2 D washer 2 used 4 Stomper arm remove coring head drive belt see Coring Head Drive Belt Removal in this section B Remove cap screw and flat washer that retain stomper arm to coring crankshaft Coring Head C If 8 final stomper arm is being removed from a ProCore 864 remove counter weight item 3 Fig 10 from coring crankshaft D Support stomper arm assembly to prevent it from falling during removal Slide stomper arm from cor ing crankshaft Carefully lower stomper arm assem bly from coring head frame 5 If an inside stomper arm is to be removed A Remove fasteners that secure coupling plate
22. Chapter 3 Chassis 4 Remove fasteners items 5 6 and 7 that secure belt guard to support Remove belt guard from machine Flat washer item 8 and cap screw item 9 can remain on Figure 23 frame 1 Drive pulley 3 Driven pulley 2 Idler pulley 4 Drive belt Coring Head Page 4 24 ProCore 864 1298 5 Loosen lock nut item 15 that secures idler nut in position on idler spring mount Loosen idler nut item 16 to remove idler tension on drive belt Be careful when lifting the idler pulley The idler pulley is spring loaded and may cause personal injury 6 Lift and hold idler pulley away from belt Remove belt from drive pulley Carefully lower idler pulley 7 Loosen and remove two 2 flange nuts and hard ened D washers that secure rotolink damper for 1 stomper arm see Rotolink Damper Disassembly in this section Lower rotolink damper from coring head frame 8 Remove drive belt from driven pulley on coring crankshaft 9 Route drive belt down through coring head frame and around lower end of 1 stomper arm to remove cor ing head drive belt from machine Fig 24 and 25 Installation Fig 22 1 Route drive belt around lower end of 1 stomper arm and up through coring head frame Fig 24 and 25 2 Position drive belt to driven pulley on coring crank shaft 3 Lift idler pulley route drive belt under idler pulley and install belt onto drive pulley Fig 23 4 Apply tension to idler pulley by
23. Disassembly Fig 41 2 Pull quill assembly from gearbox housing Remove 1 Remove six 6 flange head screws that secure quill and discard O ring and gaskets assembly to gearbox housing Coring Head Page 4 42 ProCore 864 1298 3 Disassemble quill assembly A Remove oil seal item 21 from quill housing Dis card oil seal B Bend retaining tab of retaining shim and remove lock nut and shim from shaft Discard retaining shim C Remove outer bearing Slide shaft and inner bearing from quill housing D Remove inner bearing from shaft E Use press to remove bearing cups from quill housing 4 Remove oil seal item 1 from housing to allow re moval of cross shaft assembly Discard oil seal 5 Remove retaining ring that secures cross shaft as sembly in gearbox housing NOTE Soft shims item 4 between hard shim item 3 and outer bearing item 5 are used to adjust cross shaft end play Take note of number and location of shims to assist in assembly process 6 Slide cross shaft assembly from gearbox housing Note location of hard shim item 3 and soft shim s just inside retaining ring location Remove outer bearing cup and both bearing cones from cross shaft NOTE Soft shims item 4 between inner bearing cup and gearbox housing are used to adjust gear mesh and pattern Take note of number of shims to assist in as sembly process 7 Remove inner bearing cup from gearbox housing Remove soft shim s from b
24. Safety Instructions 0 0 cece eee 1 2 Safety and Instruction Decals 1 4 Chapter 2 Product Records and Maintenance Product Records 2 02 0eeee eee 2 1 Maintenance 0 cece ee eens 2 1 Equivalents and Conversions 2 2 Torque Specifications 22222222 nennen 2 3 Chapter 3 Chassis Service and Repairs a 3 2 Chapter 4 Coring Head Specifications 0 eee 4 2 General Information 0 0000 4 4 Special Tools 00 een 4 9 Service and Repairs aa 4 10 ProCore 864 1298 2 o e 2 Cc S o e a Coring Head and Maintenance This page is intentionally blank ProCore 864 1298 Chapter 1 TORO Safety Table of Contents SAFETY INSTRUCTIONS 22 aaa 2 Before Operating nennen 2 While Operating 2 22 2222 nee 3 Maintenance and Service 3 SAFETY AND INSTRUCTION DECALS 4 ProCore 864 1298 Page 1 1 Safety Safety Instructions The ProCore 864 and 1298 are designed and tested to offer safe service when operated and maintained prop erly Although hazard control and accident prevention partially are dependent upon the design and configura tion of the machine these factors are also dependent upon the awareness concern and proper training of the personnel involved in the operation transport mainte
25. TORO Preface The purpose of this publication is to provide the service technician with information for troubleshooting testing and repair of major systems and components on the ProCore 864 and 1298 aerators REFER TO THE OPERATOR S MANUALS FOR OP ERATING MAINTENANCE AND ADJUSTMENT INSTRUCTIONS Space is provided in Chapter 2 of this book to insert the Operator s Manuals and Parts Cata logs for your machine Replacement Operator s Manu als are available on the internet at www toro com or by sending complete Model and Serial Number to The Toro Company Attn Technical Publications 8111 Lyndale Avenue South Minneapolis MN 55420 The Toro Company reserves the right to change product specifications or this publication without notice Part No 07155SL Service Manual ProCore 864 1298 This safety symbol means DANGER WARNING or CAUTION PERSONAL SAFETY INSTRUC TION When you see this symbol carefully read the instructions that follow Failure to obey the instructions may result in personal injury NOTE A NOTE will give general information about the correct operation maintenance service testing or re pair of the machine IMPORTANT The IMPORTANT notice will give im portant instructions which must be followed to pre vent damage to systems or components on the machine The Toro Company 2007 This page is intentionally blank ProCore 864 1298 Table Of Contents Chapter 1 Safety
26. a lwo low 7 8 14 UNF 155 25 260 30 353 41 NOTE Reduce torque values listed in the table above by 25 for lubricated fasteners Lubricated fasteners are defined as threads coated with a lubricant such as oil graphite or thread sealant such as Loctite NOTE Torque values may have to be reduced when installing fasteners into threaded aluminum or brass The specific torque value should be determined based on the fastener size the aluminum or base material strength length of thread engagement etc Product Records and Maintenance Page 2 4 Grade 5 and 8 fasteners are based on 75 of the mini mum proof load specified in SAE J429 The tolerance is approximately 10 of the nominal torque value Thin height nuts include jam nuts ProCore 864 1298 Standard Torque for Dry Zinc Plated and Steel Fasteners Metric Fasteners Regular Height Nuts 57 5 in Ib M5 X 0 8 96 9 in Ib Class 8 8 Bolts Screws and Studs with Class 8 or Stronger Nuts 640 60 N cm 78 7 in Ib 885 80 N cm 1018 100 N cm Class 10 9 Bolts Screws and Studs with Regular Height Nuts Class 10 or Stronger Nuts 133 13 in Ib 1500 150 N cm M6 X 1 0 M8X 1 25 M10X 1 5 M12 X 1 75 M16X 2 0 M20 X 2 5 NOTE Reduce torque values listed in the table above by 25 for lubricated fasteners Lubricated fasteners are defined as threads coated with a lubricant such as oil graphite or thread sealant such as Loctite
27. ake sure that tinnerman nuts item 8 are properly positioned to machine Also make sure that iso mounts are placed in cover holes 2 Position cover to aerator frame and secure with re moved fasteners 3 After front cover is installed position shield to aerator frame and secure with removed fasteners 4 Install rear hood Chassis Hitch Frame ProCore 1298 Figure 7 1 Hitch frame 7 Pad 2 used 13 LH subframe 2 Lynch pin 2 used 8 Flange head screw 4 used per pad 14 Pivot shaft 2 used 3 Link pin 2 used 9 Lynch pin 2 used 15 Roll pin 2 used 4 Washer 2 used 10 Clevis pin 16 Thrust washer 4 used 5 Hex nut 2 used 11 Flange nut 4 used per pad 17 Lock nut 2 used 6 Grease fitting 2 used 12 RH subframe Chassis Page 3 10 ProCore 864 1298 Removal Fig 7 1 Position aerator on a firm level surface and discon nect aerator from tractor 2 Support subframes coring frames and hitch frame assemblies to prevent them from falling or shifting unex pectedly 3 Remove front covers see Front Covers ProCore 1298 Removal in this section 4 Disconnect both coring head driveshafts from gear box see Driveshaft Removal in the Service and Repairs section of Chapter 4 Coring Head Position and sup port driveshafts away from hitch frame 5 Remove gearbox from hitch frame see Gearbox Re moval in the Service and Repairs section of Chapter 4 Coring Head 6 Remove lock nut
28. an nut 15 RH shield support 2 RH pulley shield 9 Front cover support 3 used 16 Lock nut 2 used 3 LH pulley shield 10 Carriage screw 2 used per support 17 Manual housing 4 Flange head screw 11 Flange nut 18 Housing cap 5 Flat washer 12 Side shield 2 used 19 R Clamp 2 used 6 Iso mount 13 Screw 2 used 20 PTO shield 7 Flatwasher 14 LH shield support Chassis Page 3 6 ProCore 864 1298 Removal Fig 5 1 Position aerator on a firm level surface If attached to tractor disengage PTO apply tractor parking brake stop engine and remove key from the ignition switch 2 Remove rear hood 3 To remove either pulley shield items 2 or 3 remove four 4 flange head screws and flat washers that secure pulley shield to coring frame Remove pulley shield 4 To remove front cover item 1 A Remove four 4 flange head screws and four 4 flat washers that secure PTO shield item 20 to front cover Remove PTO shield B Remove one of the pulley shields see step 3 above C Remove seven 7 flange head screws and flat washers that secure front cover to frame Remove front cover ProCore 864 1298 Page 3 7 Installation Fig 5 1 Make sure that tinnerman nuts item 8 are properly positioned to frame Also make sure that iso mounts item 6 are placed in cover holes 2 Position front cover to aerator frame and secure with removed fasteners Attach PTO shield to front cover with removed faste
29. arm item 15 and damper item 1 Torque lock nuts item 10 from 150 to 170 ft Ib 204 to 230 N m B Tighten two 2 flange nuts item 13 that secure damper links C Tighten two 2 flange nuts item 6 that secure damper to frame 4 After assembly rotate coring crankshaft by hand to make sure that no binding occurs Coring Head o o oO lt je i fe Oo Stomper Arms 210 to 230 ft Ib 285 to 311 N m ANTISEIZE LUBRICANT 210 to 230 ft lb 285 to 311 N m PROCORE 1298 STOMPER ARMS 1 AND 2 SHOWN Figure 7 1 Cap screw 5 Bearing spacer 9 Coring head frame 2 Flat washer 6 Stomper arm 10 Square key 3 Ball bearing 2 used per arm 7 Crankshaft driven pulley 11 Coupling 4 Retaining ring 8 Bearing housing assembly 12 Crankarm NOTE All stomper arms used on ProCore 864 and 1298 aerators are identical Coring crankshaft positions are identified based on their relationship with the crank shaft driven pulley The 1 position is at the pulley side of the coring crankshaft Fig 8 IMPORTANT Before disassembling the coring crankshaft label location of components that are to be removed Correct component location and orien tation are necessary for proper aerator operation Figure 8 1 Crankshaft driven pulley 2 1 position ProCore 1298 LH coring head shown 3 6 position ProCore 1298 LH coring head shown Coring Head Page 4 12 ProCore 864 12
30. backlash adjustment is necessary remove gas ket s from between quill and gearbox housing to de crease backlash Increase backlash by installing additional gasket s Recheck backlash after any gasket change Repeat process until backlash is cor rect F Remove gearbox from vise 8 After backlash is correct check gear pattern to as sure that proper gear mesh exists A Remove quill housing assembly and coat gear teeth on cross shaft with gear mounting compound B Install quill housing into gearbox housing using the same number of gaskets and secure with six 6 flange head screws Torque screws 81 ft lbs 109 N m C Rotate the input shaft to establish a gearmesh pattern in the gear mounting compound Rotating the input shaft 1 2 turn will allow all cross shaft gear teeth to contact input shaft gear teeth D Remove quill assembly from gearbox and inspect the pattern on the gear teeth E Ideal pattern should cover from 40 to 80 of the gear face width Fig 43 The contact area should be in the center of each tooth and extend from 20 to 50 of the gear face height The pattern should not run off the tooth heel toe or top F If necessary adjust the number of soft shim s between housing and inner bearing cone to correct gear pattern Make sure to also check and adjust cross shaft end play G Recheck backlash if any changes are made Ad just backlash if necessary LOCKING PLIERS LIGHTLY CLAMPED 3 100
31. d for proper aerating operation Coring crankshaft positions are identified based on their relationship with the crankshaft driven pulley The 1 position is at the pulley side of the crankshaft Fig 2 The crankshaft assembly on each of the coring heads is supported with three 3 identical bearing housing as semblies Each bearing housing supports two 2 cran karms ProCore 864 1298 Page 4 7 The crankarm used in the 1 crankshaft position is in corporated into the driven pulley Crankarms used in crankshaft positions 2 and 4 are the same compo nent These crankarms can be identified with the num bers 2 4 and 6 in the crankarm castings Crankarms used in crankshaft positions 3 and 5 use the same crankarm and can be identified with the numbers 3 and 5 in the castings The crankarm used in crankshaft posi tion 6 is different than other crankarms and has the numbers 2 4 and 6 in the casting Two 2 coupler assemblies are used to connect the crankarms that are secured in the bearing housings These coupler assemblies use two 2 couplings a cou pling plate two 2 iso mounts and necessary fasten ers The couplings used on the ProCore 1298 are all different The couplings are identified with the crank shaft position in the coupling casting The stomper arms and rotolink assemblies used on the ProCore 1298 are the same for all crankshaft positions Coring Crankshaft Timing When properly assembled the crankshaft p
32. depth control shaft 3 Unscrew depth control shaft item 10 and remove from depth control hub 4 Remove upper and lower oil seals items 4 and 7 from depth control hub Take care to not damage seal bores in hub Discard seals 5 Remove six 6 flange head screws item 23 that se cure lock plate and cover to depth control hub Remove lock plate cover and gasket 6 Slide adjustment shaft assembly from depth control hub Remove flange bushings item 11 thrust washers item 13 thrust bearings item 12 worm item 14 key item 24 and worm gear spacer item 15 from adjust ment shaft 7 Remove plain washer item 19 from depth control hub 8 Slide worm gear item 18 with two 2 bearing wash ers item 16 and thrust bearing item 17 from depth control hub Remove bearing washers and thrust bear ing from worm gear flange 9 Clean and inspect all components Replace all com ponents that are worn or damaged Assembly Fig 34 1 Apply grease to depth control components A Pack thrust bearings items 12 and 17 60 to 100 full with grease B Fill all threads of depth control shaft item 10 60 to 100 full with grease C Fill all gear teeth voids of worm item 14 and worm gear item 18 60 to 100 full with grease 2 Place bearing washer item 16 greased thrust bear ing item 17 and then second bearing washer onto flange of greased worm gear item 18 ProCore 864 1298 Page 4 35
33. earbox to hitch frame 8 Carefully remove gearbox from machine ProCore 864 1298 Page 4 41 Installation Fig 40 To prevent personal injury make sure that gearbox is supported as it is installed to the machine Gearbox weighs approximately 120 pounds 54 kg 1 Position gearbox to machine hitch frame Secure gearbox to frame with four 4 flange head screws 2 Make sure that O ring is positioned in groove in adapter on bottom of gearbox Connect drain tube to adapter 3 Connect PTO and coring head driveshaft s to gear box shafts see Driveshafts Installation in this section 4 Fill gearbox with proper lubricant see Operator s Manual 5 Install front cover to machine see Front Cover Installation in the Service and Repairs section of Chap ter 3 Chassis Coring Head o o oO lt te c fe O Gearbox Service Thread Sealant Thread Sealant Figure 41 1 Oil seal 8 Fitting 15 Gasket 2 Retaining ring 9 Housing 16 O ring 3 Hard shim 10 Oil seal 17 Quill 4 Soft shim 11 Plug 18 Flange head screw 6 used 5 Bearing cup and cone 12 Adapter 19 Retaining shim 6 Cross shaft 13 Input gear and shaft 20 Lock nut 7 Relief vent 14 Bearing cup and cone 21 Oil seal NOTE The gearbox used on ProCore 864 and 1298 NOTE Gaskets item 15 are used to adjust gearbox machines is identical backlash Take note of number of gaskets to assist in as sembly process
34. ecords and Maintenance Product Records O 3 c o c S v o c o Standard Torque for Dry Zinc Plated and Steel Fasteners Inch Series SAE Grade 5 Bolts Screws Studs amp Sems with Regular Height Nuts Sems with Regular Height Nuts SAE J995 Grade 2 or Stronger Nuts SAE J995 Grade 2 or Stronger Nuts Nm in o Pinte SAE Grade 8 Bolts Screws Studs amp Sems with Regular Height Nuts SAE J995 Grade 5 or Stronger Nuts Grade 1 5 amp 8 with Thin Height Nuts SAE Grade 1 Bolts Screws Studs amp Thread Size 6 32 UNC 147 23 6 40 UNF 8 32 UNC 8 36 UNF 10 24 UNC 339 56 10 32 UNF 1 4 20 UNC 53 7 599 79 1 4 28 UNF 65 10 734 113 5 16 18 UNC 115415 105 17 1186 169 5 16 24 UNF 138 17 128 17 1446 192 3 8 16 UNC 16 2 3 8 24 UNF 7 16 14 UNC 27 3 7 16 20 UNF 29 3 105 10 430 45 583 61 600 60 813 81 475 45 644 61 660 60 895 81 NOTE The nominal torque values listed above for 1 2 13 UNC 30 3 142 14 1 2 20 UNF 32 3 5 8 11 UNC 65 10 88 12 5 8 18 UNF 75 10 95 15 129 20 3 4 10 UNC 93 12 140 20 190 27 3 4 16 UNF 115 15 165 25 224 34 718 9 UNC 140 20 225 25 305 34 Oo gt N N w N a o N fo o oa w l N N w o N N a a N HIN o gt K x k N o w o H H N SIN N N N y o w Im n N a IS L IR N o o
35. ed pulley holes leaving 1 to 2 of the screw ex tending from the pulley surface Do not tighten screw with a wrench Use a suitable pry bar between the pulley flange and screw extension to prevent the pulley and pulley shaft from rotating B Remove cap screw and flat washer that secure pulley to pulley shaft C If needed the use of three 3 375 16 UNC 2B screws see Special Tools can be installed into threaded holes of pulley to aid in pulley removal Tighten screws progressively and evenly until the pulley is loose on the pulley shaft 7 Remove additional components as necessary using Figure 27 as a guide Installation Fig 27 1 Install all removed components using Figure 27 as a guide A If pulley shaft item 2 was removed apply anti seize lubricant to shaft bearing surface before sliding shaft into bearing bores B Apply antiseize lubricant to splines of pulley shaft C As drive pulley item 6 is being installed place 0 1 or 2 shims item 5 between outer shaft bearing and drive pulley to align drive pulley with driven pulley on coring crankshaft Pulleys should be aligned within 0 070 1 8 mm D Install a 375 16 UNC 2B screw into one of the threaded pulley holes leaving 1 to 2 of the screw ex tending from the pulley surface Make sure that the end of the screw does not contact pulley drive hous ing Use a suitable pry bar between the pulley flange and screw extension to pr
36. elt see Coring Head Drive Belt Removal in this section Figure 13 1 Crankshaft driven pulley 3 8 crankshaft position 2 1 crankshaft position As crankshaft components are removed from machine the crankshaft will become out of bal ance and may rotate quickly creating pinch points and potential for personal injury Be cau tious when disassembling the coring crankshaft 150 to 170 ft Ib 204 to 230 N m 4 Remove stomper arms and couplings on both sides of bearing housing that is to be removed see Stomper Arm Removal in this section 5 Drive spring pins item 11 from bearing housing and coring head frame 6 Support bearing housing assembly to prevent it from falling Remove fasteners that secure bearing housing assembly to coring head frame Remove bearing hous ing assembly from machine o o oO lt te c fe Oo 70 to 80 ft lb 7 Disassemble bearing housing assembly 95 to 108 N m A Remove cap screw item 1 and flat washer item Figure 14 2 that fasten crankarms together Note that cran j F 3 agi of h other 1 Coupling 3 shown 5 Coupling plate karm journals are positioned 180 from each other 2 Iso mount 2 used 6 Cap screw 4 used 3 Coupling 2 shown 7 Lock nut 2 used B Slide crankarms from bearing housing 4 Cap screw 2 used 8 Washer 2 used C If necessary remove bearings and bearing spacer from bearing housing 8 If necessary remove counter
37. eshaft yokes with shafts Slide driveshaft end yokes onto shafts 6 Secure driveshaft end yokes to shafts with two 2 cap screws and lock nuts Torque lock nuts from 70 to 80 ft Ib 95 to 108 N m 7 Lubricate driveshaft grease fittings 8 Install front covers to machine see Cover Installa tion in the Service and Repairs section of Chapter 3 Chassis Figure 38 1 Clip locked 3 Bushing engaged 2 Clip unlocked 4 Bushing disengaged ProCore 864 1298 Page 4 37 Coring Head Driveshaft Cross and Bearing Service 1 Remove driveshaft from aerator see Driveshaft Re moval in this section IMPORTANT When placing yoke in vise clamp lightly on the solid part of the yoke to prevent yoke damage Also the use of a vise with soft jaws is rec ommended 2 Lightly clamp yoke in vise Remove snap rings that secure bearings in each yoke Remove yoke from vise IMPORTANT Yokes must be supported when re moving and installing bearings to prevent damage 3 Use a press to remove cross and bearings from yokes A Place a small socket against one bearing and a large socket against the yoke on the opposite side B While supporting the large socket apply pres sure on small socket to partially push the opposite bearing into the large socket C Remove yoke from press grasp partially re moved bearing and tap on yoke to completely re move the bearing D Repeat process for remaining bearings E Thoroughly
38. etween inner bearing cup location and gearbox housing Note the number of soft shim s 8 Remove and discard remaining oil seal item 10 from gearbox housing Discard oil seal 9 Thoroughly clean and inspect all gearbox compo nents Replace all worn or damaged parts Assembly Fig 41 NOTE Soft shims item 4 between inner bearing cup and gearbox housing are used to adjust gear mesh and pattern During assembly install same number of soft shims as were removed 1 Position soft shim s in housing and then press inner bearing cup fully into housing bore 2 Press inner and outer bearing cones onto cross shaft Make sure that bearings are pressed fully to shoulders on shaft ProCore 864 1298 Page 4 43 3 Install cross shaft assembly into gearbox housing A Slide cross shaft assembly into gearbox housing NOTE Soft shims item 4 between hard shim and outer bearing are used to adjust cross shaft end play During assembly install same number of soft shims as were removed B Position outer bearing cup soft shim s and hard shim item 3 onto cross shaft Secure cross shaft with retaining ring C Check that cross shaft has from 0 001 to 0 003 0 03 to 0 07 mm end play If necessary add or re move soft shim s between outer bearing and hard shim to adjust end play 4 Assemble quill assembly A Install bearing cups into quill housing Make sure that cups are fully installed to shoulder in housing
39. event the pulley and pulley shaft from rotating E Secure drive pulley to pulley shaft with flat washer and cap screw Torque cap screw from 210 to 230 ft Ib 285 to 311 N m F Remove screw from pulley hole 2 Install coring head drive belt see Coring Head Drive Belt Installation in this section Make sure that drive belt is properly tensioned 3 Install driveshaft to pulley shaft see Driveshaft Installation in this section 4 Install front cover and pulley shield to machine see Cover Installation in the Service and Repairs section of Chapter 3 Chassis 5 Install rear hood to machine item 2 before installing pulley and driveshaft Figure 28 1 Drive pulley 3 Driven pulley 2 Idler pulley 4 Drive belt ProCore 864 1298 Page 4 27 Coring Head o ni I ke a T oO Oo Coring Head Pivot H Frame PROCORE 1298 SHOWN Figure 29 1 H frame 9 Upper link 2 used 16 Depth control assembly 2 Thrust washer 4 used 10 Jam nut 2 used 17 Carriage screw 4 used 3 Pivot shaft 2 used 11 Rod end 2 used 18 Upper link assembly 4 Cap screw 12 Lock washer 4 used 19 Flange nut 4 used 5 Flange nut 13 Hex nut 4 used 20 Bushing 8 used 6 Carriage screw 14 Spring cup 21 Coring head frame RH shown 7 Rod end LH threads 2 used 15 Compression spring 22 Subframe RH shown 8 Jam nut LH threads 2 used Coring Head Page 4 28 ProCore 864 1298 Disassembly Fig 29
40. ews Fully tighten all six 6 cover screws 11 Place shoe item 8 on bottom of depth control shaft and secure with hairpin clip 12 Position depth control gage item 3 to top of depth control shaft and align slot in gage with tab on shaft Se cure gage to control shaft with flat washer and flange head screw Coring Head o o oO lt je i lt fe Oo Driveshafts PROCORE 1298 SHOWN 95 to 108 N m LUBRICANT ANTISEIZE LUBRICANT ANTISEIZE LUBRICANT ANTISEIZE LUBRICANT 70 to 80 ft Ib 95 to 108 N m 70 to 80 ft Ib 95 to 108 N m Figure 35 1 PTO driveshaft 4 Coring head driveshaft 7 RH pulley support assembly 2 Lock nut 5 Hitch frame 8 LH pulley support assembly 3 Cap screw 6 Gearbox NOTE The ProCore 1298 uses two 2 identical coring head driveshafts shown in Figure 35 The ProCore 864 i CORING HEAD DRIVESHAFT uses one 1 coring head driveshaft i gt Removal Fig 35 1 Position aerator on a firm level surface If attached to tractor disengage PTO apply tractor parking brake stop engine and remove key from the ignition switch 2 Remove front covers to allow access to driveshaft see Cover Removal in the Service and Repairs section of Chapter 3 Chassis 3 Remove two 2 cap screws and lock nuts from both end yokes of driveshaft Figure 36 4 Slide driveshaft end yokes from shafts and remove 1 End yoke l 4 Grease fitting dri haft f hin 2 Cross
41. hassis Page 3 12 ProCore 864 1298 Chapter 4 TORO Coring Head Table of Contents SPECIFICATIONS aaa 2 GENERAL INFORMATION 05 4 ProCore 864 Coring Head 4 ProCore 1298 Coring Head 6 Coring Head Adjustments 8 SPECTIAL TOOLS won 220 20 8 37 an de wa 9 SERVICE AND REPAIRS 2222220000 10 Rotolink Damper Assemblies 10 Stomper Arms 2 12 Coring Crankshaft Bearing Housings ProCore 864 00 cee eee eee eee 16 Coring Crankshaft Bearing Housings ProCore 1298 eee eee eee 20 Coring Head Drive Belt 24 Coring Head Drive 2 0 cece eee 26 Coring Head Pivot H Frame 28 Depth Control Assembly 32 5 Depth Control Assembly Service 34 8 Driveshafts 222222 een nn 36 pa Driveshaft Cross and Bearing Service 38 E GG ADO ee A ach Aas Eee 40 5 Gearbox Service aa 42 o ProCore 864 1298 Page 4 1 Coring Head Specifications Item Description Gearbox Lubricant GL 5 API SAE 80W 90 gear lube Capacity 56 US fl oz 1 65 liter Coring Head Page 4 2 ProCore 864 1298 This page is intentionally blank o o oO lt je i fe Oo ProCore 864 1298 Page 4 3 Coring Head General Information ProCore 864 Coring Head
42. head frame 2 Flat washer 11 Spring pin 2 used per housing 19 Coupling 3 casting 3 used 3 Ball bearing 2 used per arm 12 Cap screw 4 used per housing 20 Cap screw 4 used per plate 4 Retaining ring 13 Hardened washer 21 Cap screw 2 used per plate 5 Bearing spacer 14 Lock nut 4 used per housing 22 Coupling plate 3 used 6 Stomper arm 8 used 15 Crankarm 2 4 6 casting 4 used 23 Iso mount 2 used per plate 7 Ball bearing 2 used per housing 16 Coupling 2 casting 3 used 24 Snubbing washer 2 used per plate 8 Bearing housing 4 used 17 Crankarm 3 5 7 casting 3 used 25 Lock nut 2 used per plate 9 Bearing spacer NOTE The bearing housings used on ProCore 864 aerators are identical Coring crankshaft positions are identified based on their relationship with the crankshaft driven pulley The 1 position is at the pulley side of the coring crankshaft Fig 13 IMPORTANT Before disassembling the coring crankshaft label location of components that are to be removed Correct component location and orien tation are necessary for proper aerator operation Coring Head Page 4 16 ProCore 864 1298 Removal Fig 12 1 Position aerator on a firm level surface If attached to tractor disengage PTO apply tractor parking brake stop engine and remove key from the ignition switch 2 Remove rear hood 3 If bearing housing for 1 and 2 stomper arms is to be removed remove coring head drive b
43. her Cap screw Cap screw Idler pulley Flat washer Lock nut Compression spring Idler nut Lock nut The coring head on the ProCore 864 is driven by a single 4 grooved banded belt on the right side of the coring head The ProCore 1298 dual coring heads are each driven by a banded belt on the outside of the coring head The drive belt drive pulley belt tensioning system and other coring head drive components are similar on both the ProCore 864 and 1298 Coring Head Page 4 26 ANTISEIZE LUBRICANT 210 to 230 ft Ib 285 to 311 N m 25 26 Tinnerman nut 4 used 28 29 30 31 32 33 34 35 Drive belt Cap screw Belt guard support Dirt shield Belt guard Flat washer 4 used Flange head screw 6 used Spacer hose Flange nut Bushing 2 used ProCore 864 1298 Removal Fig 27 1 Position aerator on a firm level surface If attached to tractor disengage PTO apply tractor parking brake stop engine and remove key from the ignition switch 2 Remove rear hood from machine 3 Remove front cover and pulley shield from machine see Cover Removal in the Service and Repairs section of Chapter 3 Chassis 4 Remove coring head drive belt see Coring Head Drive Belt Removal in this section 5 Remove driveshaft from pulley shaft see Driveshaft Removal in this section 6 Remove pulley item 6 from pulley shaft A Install a 375 16 UNC 2B screw into one of the thread
44. hrough holes in each spring cup item 7 then install washer and nut on both ends of rod B Tighten upper nut on rod to compress spring item 6 until upper spring cup is approximately 1 2 13 mm from spring seat on hitch frame C If working on ProCore 864 repeat for second compression spring The ProCore 864 coring head frame assembly weighs approximately 900 pounds 408 kg The ProCore 1298 coring head frame assembly weighs approximately 675 pounds 306 kg Make sure that proper lift or hoist is used to sup port coring head frame during repairs 5 Use suitable lift or hoist and lifting eyelets on coring crankshaft as lift points Fig 33 to raise coring head Raise coring head so that clearance exists between depth control assembly and pad on hitch frame 6 Use appropriate jackstands or blocking to support the coring head to prevent it from shifting or lowering 7 Remove four 4 carriage screws and flange nuts that secure depth control assembly to coring frame 8 Remove depth control assembly from coring frame ProCore 864 1298 Page 4 33 Installation Fig 32 1 Make sure that coring frame is supported in a raised position to prevent unexpected lowering of coring frame 2 Position depth control assembly to coring frame 3 Secure depth control assembly to coring frame with four 4 carriage screws and flange nuts 4 Use appropriate hoist to lower coring frame so that depth control assembly
45. ing protection is recommended for prolonged exposure to reduce the po tential of permanent hearing damage IMPORTANT Never operate aerator without tine heads installed IMPORTANT Never operate the tractor PTO in ex cess of 540 RPM or damage to the aerator could oc cur 6 Before leaving the operator s position of the tractor A Disengage PTO power to aerator and lower aera tor to the ground B Apply parking brake on tractor Stop engine and remove key from ignition switch C Wait for all moving parts to stop before leaving the tractor 6 After servicing the aerator be sure that all guards and covers are properly installed and that the rear hood is secured shut 7 At the time of manufacture the machine conformed to all applicable safety standards To assure optimum performance and continued safety certification of the machine use genuine Toro replacement parts and ac cessories Replacement parts and accessories made by other manufacturers may result in non conformance with the safety standards and the warranty may be voided 8 If major repairs are ever needed or assistance is de sired contact an Authorized Toro Distributor Safety Safety and Instruction Decals Numerous safety and instruction decals are affixed to the ProCore 864 and 1298 If any decal becomes illeg ible or damaged install a new decal Part numbers for replacement decals are listed in your Parts Catalog Or der replacement deca
46. it 3 Snap ring 4 used 4 Shaft yoke ProCore 864 1298 This page is intentionally blank o o oO lt je i fe Oo ProCore 864 1298 Page 4 39 Coring Head Gearbox PROCORE 1298 SHOWN Figure 40 1 PTO driveshaft 8 Lock nut 14 Relief vent 2 Gearbox 9 Cap 15 Coring head driveshaft 3 Flange head screw 4 used 10 Cap screw 16 Pulley drive 4 Reducer fitting 11 Lock nut 17 O ring 5 Adapter 12 Cap screw 18 Hitch frame 6 Tube 13 Lock nut 19 O ring 7 Hardline keeper Coring Head Page 4 40 ProCore 864 1298 Removal Fig 40 1 Position aerator on a firm level surface If attached to tractor disengage PTO apply tractor parking brake stop engine and remove key from the ignition switch 2 Remove front cover from hitch frame see Front Cov er Removal in the Service and Repairs section of Chap ter 3 Chassis 3 Drain lubricant from gearbox NOTE The ProCore 864 uses one 1 coring head dri veshaft The ProCore 1298 has two 2 coring head dri veshafts 4 Disconnect PTO and coring head driveshaft s from gearbox shafts see Driveshafts Removal in this sec tion 5 Disconnect drain tube from adapter on bottom of gearbox To prevent personal injury make sure that gearbox is supported as it is removed from the machine Gearbox weighs approximately 120 pounds 54 kg 6 Support gearbox to prevent it from shifting 7 Remove four 4 flange head screws that secure g
47. ive Belt Removal in this section 4 Remove stomper arms and couplings on both sides of bearing housing that is to be removed see Stomper Arm Removal in this section 5 Drive spring pins item 11 from bearing housing and coring head frame 6 Support bearing housing assembly to prevent it from falling Remove fasteners that secure bearing housing assembly to coring head frame Remove bearing hous ing assembly from machine 7 Disassemble bearing housing assembly A Remove cap screw item 1 and flat washer item 2 that fasten crankarms together Take note of align ment of crankarm identification number with timing mark on bearing housing Fig 19 B Slide crankarms from bearing housing C If necessary remove bearings and bearing spacer from bearing housing Installation Fig 17 1 Install new bearings if they were removed from bear ing housing A Install new bearing into one side of housing by pressing on outer race of bearing a Figure 18 1 Crankshaft driven pulley 2 1 position ProCore 1298 LH coring head shown 3 6 position ProCore 1298 LH coring head shown o I D a T o oO Figure 19 1 Housing timing mark 2 Crankarm position 150 to 170 ft lb 204 to 230 N m 70 to 80 ft Ib B Position bearing spacer into bearing housing 95 to 108 N m C Install second new bearing into housing by press Figure 20 ing on outer race of bearing Make sure that spacer is
48. ivot shafts make sure that both sides of H frame are aligned with holes in frame before installing pivot shaft 3 Position H frame to hitch frame making sure that thrust washers are placed between H frame and hitch frame Align both sides of H frame to pivot shaft holes in hitch frame Slide pivot shaft through hitch frame and H frame Secure pivot shaft to hitch frame with cap screw and flange nut Coring Head o aD lt oO oO 4 Position coring head to allow alignment of both sides of H frame to pivot shaft holes in coring head frame Slide pivot shaft through coring head frame and H frame Secure pivot shaft to coring head frame with car riage screw and flange nut 5 Position upper link assemblies to hitch frame and coring head frame Make sure that link assemblies Fig 31 have the groove installed in the same direction Se cure upper link rod ends to machine with lock washer and hex nut 6 7 Install compression spring s to coring head frame A With compression spring tool see Special Tools compressing the spring position upper end of spring to hitch frame and then slide bottom of spring to cor ing head frame spring bracket B Loosen lower nut on threaded rod to allow spring item 2 to extend C Remove compression spring tool threaded rod washers and nuts from spring cups item 1 and spring D If working on ProCore 864 repeat for second spring Install pu
49. link Damper Assemblies LOCTITE 242 Figure 6 Rotolink damper 7 Cap screw Stud 2 used per rotolink 8 Ball bearing Bumper 2 used per rotolink 9 Damper link Standoff 4 used per rotolink 10 Lock nut Hardened D washer 11 Cap screw Flange nut 2 used per rotolink DA a ONS NOTE The rotolink damper assemblies for all stomper arms used on ProCore 864 and 1298 aerators are iden tical Coring Head Page 4 10 12 13 14 15 16 150 to 170 ft Ib 204 to 230 N m Hardened washer Flange nut Rubber bumper 2 used per rotolink Stomper arm Coring head frame ProCore 864 1298 Disassembly Fig 6 1 Position aerator on a firm level surface If attached to tractor disengage PTO apply tractor parking brake stop engine and remove key from the ignition switch 2 Remove rotolink components as needed using Fig ure 6 as a guide ProCore 864 1298 Page 4 11 Assembly Fig 6 1 If studs item 2 were removed from rotolink damper item 1 apply Loctite 242 or equivalent to threads of studs Thread stud fully into damper 2 If bearings item 8 were removed from damper links press new bearings into links Make sure that bearings are pressed completely to the shoulder of the link bore 3 Assemble all components before fully tightening any fasteners so there is no preload on rotolink damper com ponents Tighten fasteners in the following order A Secure damper links item 9 to stomper
50. lley shield and front cover to machine see Cover Installation in the Service and Repairs section of Chapter 3 Chassis 8 9 Coring Head Install rear hood to machine Adjust aerator to desired depth setting Page 4 30 _ FA Wr Tie Da Lh J ps 8 170 to 8 230 x NAK a f KO wl X a 208 to 209 mm Figure 31 1 Rod end RH threads 3 Link groove 2 Rodend LH threads ProCore 864 1298 This page is intentionally blank o o oO lt je i fe Oo ProCore 864 1298 Page 4 31 Coring Head Depth Control Assembly PROCORE 1298 SHOWN Figure 32 1 H frame 5 Coring head frame 9 Flange head screw 4 used 2 Depth control assembly 6 Compression spring 10 Pad 3 Flange nut 4 used 7 Spring cup 11 Flange nut 4 used 4 Carriage screw 4 used 8 Hitch frame Coring Head Page 4 32 ProCore 864 1298 Removal Fig 32 1 Position aerator on a firm level surface If attached to tractor disengage PTO apply tractor parking brake stop engine and remove key from the ignition switch 2 Remove rear hood from machine 3 Remove front cover to allow access to depth control assembly see Cover Removal in the Service and Re pairs section of Chapter 3 Chassis 4 Use compression spring tool see Special Tools to compress coring head compression spring s slightly The springs do not have to be removed from machine A Install compression spring tool threaded rod t
51. ls from your Authorized Toro Dis tributor Safety Page 1 4 ProCore 864 1298 Chapter 2 TORO Product Records and Maintenance Table of Contents PRODUCT RECORDS 2 2000 1 MAINTENANCE 2222000 1 EQUIVALENTS AND CONVERSIONS 2 5 3 Decimal and Millimeter Equivalents 2 83 U S to Metric Conversions 2 E TORQUE SPECIFICATIONS 000005 3 5 Fastener Identification 2222 2 3 E Standard Torque for Dry Zinc Plated and S Steel Fasteners Inch Series 4 Standard Torque for Dry Zinc Plated and Steel Fasteners Metric Fasteners 5 Other Torque Specifications 6 Conversion Factors 0eeeeee eee 6 Product Records Insert Operator s Manual and Parts Catalog for your ProCore 864 or 1298 at the end of this chapter Addition ally if any optional equipment or accessories have been installed to your ProCore insert the Installation Instruc tions Operator s Manuals and Parts Catalogs for those options at the end of this chapter Maintenance Maintenance procedures and recommended service in tervals for the ProCore 864 or 1298 are covered in the Operator s Manual Refer to that publication when per forming regular equipment maintenance ProCore 864 1298 Page 2 1 Product Records and Maintenance Decimal and Millimeter Equivalents Equivalents and Conversions Fractions Decimals
52. mm Fractions Decimals mm 1 64 0 015625 0 397 33 64 0 515625 13 097 1 32 0 03125 0 794 1782 0 53125 13 494 3 64 0 046875 1 191 35 64 0 546875 13 891 1 16 0 0625 1 588 9 16 0 5625 14 288 5 64 0 078125 1 984 37 64 0 578125 14 684 3 32 0 09375 2 381 19 32 0 593875 15 081 7 64 0 109275 2 778 39 64 0 609375 15 478 1 8 0 1250 3 175 5 8 0 6250 15 875 9 64 0 140625 3 572 41 64 0 640625 16 272 5 32 0 15625 3 969 21 32 0 65625 16 669 11 64 0 171875 4 366 43 64 0 671875 17 066 3 16 0 1875 4 762 11 16 0 6875 17 462 13 64 0 203125 5 159 45 64 0 703125 17 859 7 32 0 21875 5 556 23 32 0 71875 18 256 15 64 0 234375 5 953 47 64 0 734375 18 653 1 4 0 2500 6 350 3 4 0 7500 19 050 17 64 0 265625 6 747 49 64 0 765625 19 447 9 32 0 28125 7 144 25 32 0 78125 19 844 19 64 0 296875 7 541 51 64 0 796875 20 241 5 16 0 3125 7 938 13 16 0 8125 20 638 21 64 0 328125 8 334 53 64 0 828125 21 034 11 32 034375 8 731 27 32 0 84375 21 431 23 64 0 359375 9 128 55 64 0 859375 21 828 3 8 0 3750 9 525 7 8 0 8750 22 225 25 64 0 390625 9 922 57 64 0 890625 22 622 13 32 0 40625 10 319 29 32 0 90625 23 019 27 64 0 421875 10 716 59 64 0 921875 23 416 7 16 0 4375 11
53. n both sides of bearing housing see Stomper Arm Instal lation in this section Do not fully tighten fasteners IMPORTANT On the ProCore 864 the numbers cast into the crankarms will not align with the raised indi cator marks on the bearing housings 10 Once all stomper arm and crankarm components have been installed fully tighten fasteners in the follow ing order Fig 16 Tighten fasteners to the torque speci fications identified in Figures 12 and 14 A Cap screw used to secure crankarms B Cap screws that secure top of stomper arms C Cap screws that secure coupling plates Fig 14 D Lock nuts that secure rotolink dampers to frame see Rotolink Damper Assemblies in this section 11 After assembly rotate coring crankshaft by hand to make sure that no binding occurs 12 If removed install coring head drive belt see Coring Head Drive Belt Installation in this section 13 Install rear hood 1 Crankarm screw 2 Stomper arm screw Coring Head Page 4 18 Figure 16 3 Coupling plate screw 4 Damper lock nut ProCore 864 1298 This page is intentionally blank o o oO lt je i fe Oo ProCore 864 1298 Page 4 19 Coring Head Coring Crankshaft Bearing Housings ProCore 1298 210 to 230 ft Ib 285 to 311 N m aS ANTISEIZE 0 LUBRICANT ANTISEIZE LUBRICANT PROCORE 1298 STOMPER ARMS 1 AND 2 SHOWN Figure 17 1 Cap screw 7 Ball bearing 2 used per housing
54. ners 3 After front cover is installed position pulley shield to aerator frame and secure with removed fasteners 4 Install rear hood Chassis Front Covers ProCore 1298 Figure 6 1 Front cover RH shown 8 Tinnerman nut 2 Pulley shield RH shown 9 Front cover support 2 used 3 Yoke cover 10 Carriage screw 4 used 4 Flange head screw 11 Flange nut 8 used 5 Flat washer 12 Side shield 6 Iso mount 13 Flat washer 2 used 7 Screw 2 used 14 Hitch frame Chassis Page 3 8 Shield support RH shown Screw 4 used Manual housing Housing cap R clamp 2 used Lock nut 2 used Subframe RH shown ProCore 864 1298 Removal Fig 6 1 Position aerator on a firm level surface If attached to tractor disengage PTO apply tractor parking brake stop engine and remove key from the ignition switch 2 Remove rear hood 3 To remove pulley shield item 2 remove four 4 flange head screws and flat washers that secure pulley shield to coring frame Remove pulley shield 4 To remove front cover item 1 A Remove one of the pulley shields see step 3 above B Remove five 5 flange head screws and flat washers that secure front cover to frame Remove front cover 5 To remove yoke cover item 3 remove four 4 flange head screws and flat washers that secure yoke cover to hitch frame Remove yoke cover ProCore 864 1298 Page 3 9 Installation Fig 6 1 M
55. nut 7 Compression spring 15 Turf guard clamp 8 Spring rod 16 Flange bushing Chassis Page 3 4 17 18 19 20 21 22 23 24 Thrust washer Stub shaft RH turf guard Shaft LH turf guard Rib neck screw Hitch frame Turf guard ProCore 864 1298 Removal Fig 2 1 Position aerator on a firm level surface If attached to tractor disengage PTO apply tractor parking brake stop engine and remove key from the ignition switch 2 Disconnect spring assembly from turf guard A Remove flange nut item 12 that secures spring assembly to turf guard B Slide end of cap screw item 11 from bracket on turf guard C Position spring assembly away from turf guard 3 On both sides of frame loosen and remove two 2 carriage screws and flange nuts that secure turf guard pivot shafts to frame NOTE On ProCore 864 machines the LH pivot shaft extends completely through the LH turf guard and into the RH turf guard 4 Slide pivot shafts from frame and turf guard NOTE On ProCore 864 machines there is one 1 thrust washer on each side of the turf guard On ProCore 1298 machines there are two 2 thrust washers on each side of turf guard Fig 3 5 Remove turf guard assembly from machine Locate and retrieve thrust washer s from each side of turf guard 6 Disassemble turf guard and spring assembly as needed using Figure 2 as a guide 7 If necessary use press to remove rib neck screws item 22
56. osition num bers on the crankarms will align with the raised align ment marks on the bearing housing Fig 3 The timing of either coring head is not dependent on the adjacent coring head Figure 3 2 Crankarm position 1 Housing timing mark Coring Head o I ke a lt oO oO Coring Head Adjustments See Operator s Manual for adjustment procedures for the coring head on the ProCore 864 and 1298 Never work on the coring head with the tow trac tor PTO engaged or engine running Always dis engage the PTO stop tractor engine remove key from the ignition switch and wait for all machine movement to stop before performing any service to coring head components Coring Head Page 4 8 ProCore 864 1298 Special Tools Compression Spring Tool Use to remove and install the coring head compression springs Obtain these items locally NOTE The ProCore 864 uses two 2 compression springs for its single coring frame The ProCore 1298 uses one 1 compression spring for each of its dual cor ing frames Figure 4 1 Threaded rod 1 2 or 5 8 diameter 2 Nut 2 used 3 Flat washer 2 used Coring Head Drive Pulley Tool Use to remove the coring head drive pulley Obtain these items locally Coring Head Cap Screw Full Thread 375 16 UNC 2B Figure 5 1 Drive pulley 2 Cap screw full thread ProCore 864 1298 Page 4 9 Coring Head Service and Repairs Roto
57. rews that secure top of stomper arms C Cap screws that secure coupling plates Fig 20 D Lock nuts that secure rotolink dampers to frame see Rotolink Damper Installation in this section 11 After assembly rotate coring crankshaft by hand to make sure that no binding occurs 12 If removed install coring head drive belt see Coring Head Drive Belt Installation in this section 13 Install rear hood Figure 21 1 Crankarm screw 3 Coupling plate screw 2 Stomper arm screw 4 Damper lock nut Coring Head Page 4 22 ProCore 864 1298 This page is intentionally blank o o oO lt je i fe Oo ProCore 864 1298 Page 4 23 Coring Head Coring Head Drive Belt Figure 22 1 Tinnerman nut 4 used 9 Cap screw 16 Idler nut 2 Belt guard support 10 Idler pulley 17 Spacer hose 3 Dirt shield 11 Idler arm 18 Compression spring 4 Belt guard 12 Spring mount 19 Pulley 5 Flat washer 4 used 13 Pulley shaft 20 Flat washer 6 Flange head screw 4 used 14 Pulley support 21 Cap screw 7 Flange nut 15 Lock nut 22 Drive belt 8 Flat washer Removal Fig 22 1 Position aerator on a firm level surface If attached to tractor disengage PTO apply tractor parking brake stop engine and remove key from the ignition switch 2 Remove rear hood from machine to allow access to coring head drive belt 3 Remove pulley shield from machine see Cover Re moval in the Service and Repairs section of
58. ring head frame assembly weighs approximately 900 pounds 408 kg The ProCore 1298 coring head frame assembly weighs approximately 675 pounds 306 kg Make sure that proper lift or hoist is used to sup port coring head frame during repairs ProCore 864 1298 Page 4 29 7 Using suitable lift or hoist raise coring head slightly using lifting eyelets on coring crankshaft as lift points Fig 30 Use appropriate jackstands or blocking to sup port the coring head to prevent it from shifting 8 Remove upper link assemblies item 21 from hitch frame and coring head frame 9 Remove fasteners items 4 5 and 6 that secure end of pivot shafts to machine 10 Carefully slide pivot shafts from H frame Locate and retrieve four 4 thrust washers item 2 from be tween H frame and machine frame 11 Remove H frame from machine 12 If necessary remove bushings item 20 from H frame Figure 30 2 Lifting eyelet 1 Bearing housing Assembly Fig 29 1 If upper links were disassembled note that link has a groove on the end that has left hand threads Install rod ends equally to make link assembly from 8 170 to 8 230 208 to 209 mm long rod center to rod center Fig 31 Also align rod ends before tightening jam nuts 2 If bushings were removed from H frame press new bushings into H frame bores Bushings should be re cessed into the H frame at least 0 030 0 8 mm IMPORTANT When installing p
59. s onto roller shafts Do not tighten set screws at this time To prevent personal injury make sure that roll er is supported as it is installed to the machine Roller weighs approximately 133 pounds 60 kg 2 Position roller with flange bearings under raised aer ator 3 Start engine on tow vehicle Slowly lower aerator to position aerator frame to roller assembly 4 Align holes in bearing flanges with holes in aerator frame Orientate bearing so that grease fittings point to front of aerator Secure both flange bearings to frame with two 2 cap screws and lock nuts 5 Check that roller is free to rotate and no binding ex ists Center roller between bearings 6 Using the blind hole in the flange mount bearing lock ing collars as a striking point lock collars to roller shaft by rotating the collars with a punch in the direction of nor mal roller rotation Tighten set screw item 2 1 to secure each bearing locking collar to roller shaft 7 Check that clearance between roller scraper and roller is from 0 060 to 0 090 1 5 to 2 2 mm along en tire length of scraper Adjust scraper position if neces sary 8 Lubricate grease fittings on roller bearings Chassis Turf Guards PROCORE 864 SHOWN Figure 2 1 Lock nut 9 Jam nut 2 Thrust washer 10 Spring tube 3 Spring bracket 11 Cap screw 4 Screw 2 used per bracket 12 Flange nut 5 Flatwasher 13 Carriage screw 6 Spring rod sleeve 14 Flange
60. s that secure pivot shafts to sub frames and hitch frame 7 Make sure that aerator frame sections are sup ported 8 Slide both pivot shafts from subframe and hitch frame Locate and retrieve thrust washer item 16 from each side of subframe 9 Lift subframe assemblies from hitch frame Remove hitch frame 10 Inspect bushings in subframe for wear or damage Fig 8 Replace bushings if necessary Installation Fig 7 1 Position hitch frame to subframe assemblies 2 Connect both subframes to hitch frame A Place thrust washer on each side of subframe pivot tube B Slide pivot shaft through hitch frame both thrust washers and subframe pivot Make sure that roll pin in pivot shaft is positioned in frame reliefs C Install lock nut onto pivot shaft Tighten lock nut until the total clearance between the subframe and hitch frame is from 0 010 to 0 030 0 3 to 0 7 mm ProCore 864 1298 Page 3 11 3 Install gearbox to hitch frame see Gearbox Installa tion in the Service and Repairs section of Chapter 4 Coring Head 4 Connect both coring head driveshafts to gearbox see Driveshaft Installation in the Service and Repairs section of Chapter 4 Coring Head 5 Install front covers see Front Covers ProCore 1298 Installation in this section 6 Lubricate grease fittings on subframe pivot tubes Figure 8 1 Subframe 2 Flange bushing Chassis This page is intentionally blank C
61. the recommended torque or a torque that is unique to the application is clearly identified and spe cified in this Service Manual These Torque Specifications for the installation and tightening of fasteners shall apply to all fasteners which do not have a specific requirement identified in this Ser vice Manual The following factors shall be considered when applying torque cleanliness of the fastener use of a thread sealant e g Loctite degree of lubrication on the fastener presence of a prevailing torque feature hardness of the surface underneath the fastener s head or similar condition which affects the installation Fastener Identification Grade 1 Grade 5 Inch Series Bolts and Screws Figure 1 ProCore 864 1298 Page 2 3 As noted in the following tables torque values should be reduced by 25 for lubricated fasteners to achieve the similar stress as a dry fastener Torque values may also have to be reduced when the fastener is threaded into aluminum or brass The specific torque value should be determined based on the aluminum or brass material strength fastener size length of thread en gagement etc The standard method of verifying torque shall be per formed by marking a line on the fastener head or nut and mating part then back off fastener 1 4 of a turn Measure the torque required to tighten the fastener until the lines match up Class 8 8 Class 10 9 Metric Bolts and Screws Figure 2 Product R
62. ting tines The crankshaft assembly operates six 6 stomper arms with rotolink assemblies to provide vertical tine motion The coring head frame pivots to allow aerating depth control Drive for the dual coring heads comes from the tow trac tor PTO A single gearbox on the ProCore is turned by a driveshaft connected to the tractor PTO The gearbox provides rotation for the two 2 coring head crankshaft assemblies The ProCore gearbox rotates two 2 driveshafts Each of these driveshafts rotates a coring head crankshaft with a pulley and 4 groove drive belt tensioned by a spring loaded idler pulley The two 2 coring crankshafts are composed of multiple crankarms bearings bearing housings and couplings For assembly purposes proper crankshaft component position is identified by alignment marks on bearing housings and numbers cast into crankarms and cou pling components Crankarm journals are timed to en sure minimal vibration Aeration depth control is performed by adjusting the cor ing head depth control assembly to obtain the desired aerating depth Turf holders are used to prevent damage to the turf as the tines are lifted from the ground A variety of tines tine heads and turf holders are avail able for use on the ProCore 1298 See the Operator s Manual for available options Coring Crankshaft Fig 2 Each of the ProCore 1298 coring crankshaft assemblies is composed of six 6 crankarms The crankarms are time
63. tor Stay away from the aerator coring head when it is engaged 2 Before starting the engine on the tractor A Apply the parking brake B Make sure traction lever or transmission is in neu tral and PTO is disengaged C Refer to Tractor Operator s Manual for safe start ing procedures 3 Do not run tractor engine in a confined area without adequate ventilation Exhaust fumes are hazardous and could possibly be deadly 4 If abnormal vibration is detected disengage PTO and stop tractor immediately Determine source of vibration and correct problem s before resuming the use of aerator Maintenance and Service 1 Before servicing or making adjustments to aerator disengage tractor PTO position aerator on a level sur face and lower aerator to the ground Apply tractor park ing brake stop engine and remove key from the ignition switch 2 Make sure machine is in safe operating condition by keeping all nuts bolts and screws tight 3 Use care when checking or servicing the coring head wear gloves and use caution 4 Never step over the PTO shaft to reach other side of aerator Walk around the machine instead 5 Before disconnecting aerator from tractor install storage stand to aerator hitch frame and park aerator on a hard level surface ProCore 864 1298 Page 1 3 5 While operating the combination of the tractor and the ProCore aerator may exceed noise levels of 85dB A at the operator position Hear
64. weight from driven Uf Loctite 242 pulley Fig 15 Installation Fig 12 1 Install new bearings if they were removed from bear ing housing A Install new bearing into one side of housing by pressing on outer race of bearing B Position bearing spacer into bearing housing Figure 15 1 Driven pulley 3 Flange head screw 2 Counterweight C Install second new bearing into housing by press ing on outer race of bearing Make sure that spacer is centered between bearings ProCore 864 1298 Page 4 17 Coring Head 2 If counterweight was removed from driven pulley ap ply Loctite 242 or equivalent to threads of flange head screws and secure counterweight to pulley 3 Apply antiseize lubricant liberally to crankarm splines and journals 4 Install crankarms into bearing housing Make sure that crankarm journals are positioned 180 from each other 5 Install cap screw item 1 and flat washer item 2 to retain crankarms Do not fully tighten cap screw 6 Drive new spring pins item 11 into coring head frame holes 7 Position bearing housing assembly to coring head frame Make sure that crankarms identified with 2 4 6 in the casting are orientated toward the left side of the ma chine 8 Secure bearing housing to frame with four 4 cap screws eight 8 hardened washers and four 4 lock nuts Torque fasteners from 70 to 80 ft lb 95 to 108 N m 9 Install stomper arms and couplings to crankarms o
65. weights are incorporated into the ProCore 864 coring crankshaft to ensure the rotational balance of the crankshaft assembly One of the counterweights is bolted to the driven pulley The second counterweight is attached to the 8 crankarm position The stomper arms and rotolink assemblies used on the ProCore 864 are the same for all crankshaft positions Coring Crankshaft Timing On the ProCore 864 aerator each pair of crankarms joined through a bearing housing are assembled with the crankarm journals positioned 180 apart The cou pler assemblies that connect these pairs of crankarms allow for proper phasing of the crankshaft to allow mini mal operating vibration NOTE On the ProCore 864 the numbers cast into the crankarms will not align with the raised indicator marks on the bearing housings Coring Head o o oO lt tez c lt fe Oo ProCore 1298 Coring Head Figure 2 1 Driven pulley 4 Bearing housing 3 used 7 Crankarm 6 2 1 stomper arm 5 Crankarm 2 and 4 8 Coupling assembly 2 3 3 6 stomper arm 6 Crankarm 3 and 5 9 Coupling Assembly 4 5 Coring Head Page 4 6 ProCore 864 1298 Operation The ProCore 1298 is comprised of two 2 independent coring heads connected with a pivoting subframe sys tem Each of the coring heads includes a coring crank shaft assembly turf holders tine holders and aera

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