Torque-Hub Planetary Final Drive W3B/W3C Series Service Manual
Contents
1. 20 13 77777 THREAD 50 150 4 0 9 50 213 531 DIA DRE THRU 4995 1656 DIA C BORE 656 DEEP 2 HOLES 180 APART 2 125 LOC AS SHOWN DIA 8 00 4 625 11 THREAD ONE M STL 02 TWO 4140 STL QUENCH amp TEMPER DRAW Rc 28 34 OR ALLOY ALL THREAD 8 22 DET 103 TO 1702 13 2 500 13 WING NUT 103 DET MATL STOCK SIZE OR PART NUMBER RAIRAILD anes SUIS SONOS hetaaa zan fa TOLERANCE DIMENSIONS VOS 005 0 UNLESS OTHERWISE SPECIFIED ALL CHAMFERS 0 X 45 RADII 05 8 9 102 STAMP PART STAMP TOOL NO Wi 11 51 CT50A180E411 9 1220225 45 201476 LEAK TEST ADAPTER PLATE CUO WC REGD 8 DIA 555 375 18 216 THO DIA 408 DIA CHILL THRU 24 53 625 12 HOLES 180 4 SHOWN 500 13 THD 62 TNO M STL 104 1 OAS O RING 810 2175 16 WING NUTS THO STOCK YIr PATTERN ARAD FOR CNCFLLIWNCE 7 INDIANA USA TEAK TEST ADAPTER PLATE 46 MI LOOM IAA IO WE Ia es EH Erm WUNDERS BOLAN ALL CONES OITTHD TOLERANSIE2. INLESS SPECIFIED 1 1 OTHERMISE SPECIFIED ALL ee aj wnt ati 7201476 205660 SNAP RING ASSEMBLY TOOL CWO REWORK MATL 03 R VIEW COPPER PLATE PAINT THIS AREA D0 NOT CARBURIZE STOCK SIZE OR PATTERN NO FAIRFIELD caeco ror LAFAYETTE INDIANA US A TOA RING ASSEMBLY ONE 9620 STL CARBURIZE GRO SLL LOOSE DETAILS TO BE WITH THEIR RESPECTIVE MIVEERS ALL CORNERS EXCEPT CUTTING EDGES TOLERANCE ON DIMENSIONS UNLESS OTHERWISE SPECIFIED 11 F 1 5 FULL DRAWN RAS 10 04 91 STAMP PART NG 1295650 SHEETS Por IB 1 UNLESS OTHERWISE SPECIFIED ALL CHAMPERS 06 45 06 R 47 223988 ROLL TEST TOOL DET SITE OR PARTNUMBER 1223788 48 223989 ROLL TEST TOOL ON DIMENSIONS BOS TODS 1 018 100 UNL
3. CARRIER gt SUBASSEMBLY NOTE Figure 1 refers to 30 35 50 64 amp 73 1 Ratios Oo SUBASSE NOTE Figure 2 refers to 18 24 31 8 43 1 Ratios HUB SPINDLE SUBASSEMBLY 19 INPUT SHAFT SUBASSEMBLY MBLY 13 10 11 12 13 If applicable remove Spacer 14 from the Input Shaft 11 Remove the Sun Gear 13 Lift out the Carrier Subassembly from the unit Remove the Input Spacer 12 from the unit Remove two Thrust Spacers 15 and Thrust Bearing 16 from the Internal Gear 2 Remove Internal Gear 2 from the unit Remove Input Shaft Subassembly from the Hub Spindle Subassembly Take out Input Coupling Subassembly of the Hub Spindle Subassembly This concludes the Main Disassembly 14 Planetary Final Drive Service Manual Carrier Disassembly 0 j 1 Drive Planet Shaft out of the carrier holes forcing the Roll Pin 8G to sheer off 2 Hold on to the Planet Gear and push the Planet Shaft out of the Carrier The Thrust Washers 3B and 3H will slide off the shaft as it is removed 3 Ns a hammer and punch drive the Roll Pin 8G out of the Planet Shaft and Carrier 4 Remove first set of Needle Bearings 3C from the inside of the Planet Gear 5 Remove Thrust Washer 3D from Planet Gear 3F 6 Remove second set of Needle Bearings from the i
4. 18 Planetary Final Drive Service Manual Housing Spindle Disassembly CAUTION Safety glasses must be worn during these next steps 1 Remove Internal Retaining Ring 9 from the groove of the Spindle 1A 2 Remove Thrust Washer 7 from the spindle 1A 3 Remove Spring 8 from the Spindle 1A 4 Remove Thrust Washer 7 from the Spindle 1A Set the unit bench so that the Spindle 1A flange is down Continued on Next Page 19 6 Remove the O Ring 5 from the Housing 1G and discard it CAUTION Safety glasses must be worn during these next steps 7 Remove Retaining Ring 11 from the groove of Spindle 1A 8 Remove Thrust Washer 1H from the Spindle 1A 9 Remove two Pipe Plugs 14 from the Housing 1G 10 Turn the unit over and carefully place the unit on a support base until the Spindle 1A post rests on it Ensure there is enough gap to lower the Housing 1G down USING DEAD BLOW HAMMER ON THE HOUSING DRIVE THE BEARING CONE OFF THE SPINDLE SUPPORT SPINDLE USING SUPPORT BASE 11 Use a dead blow hammer on the Housing 1G flange to drive the inboard Bearing Cone 1F off of the Spindle 1A Continued on Next Page 20 12 13 14 15 16 Lift the Spindle 1A out of the Housing 1 If required remove Boot Seal 1Q from the Housing 1G Remove Lip Seal 1B from the Housing 1G Remove the Bearing Cone 1D from the Bearing Cup 1C
5. 35 50 54 amp 73 1 ratios Skip step 8 Install Input gear 13 with counter bore down in mesh with the Input Shaft 11 splines counter bore down With small end of Cluster Gear 8F down and while holding Ring Gear 4 in mesh with Carrier Sub Assembly place assembly into Internal Gear 2 Once in place Rotate the Ring Gear 4 until hole marked is aligned with one of shoulder bolt holes in Hub 1G NOTE If the gears do not mesh easily or carrier sub assembly does not rotate freely then remove the Carrier and Ring Gear and check timing Step 5 NOTE Check each Cluster Gear 3F to make sure that the timing punch marks is in line with a tooth on the large end amp a tooth on the small end of the cluster gear THESE TWO TEETH MUST BE IN LINE WITH THE PUNCH MARKS ON EVERY CLUSTER GEAR NOTE For 30 35 50 54 amp 73 1 ratios Skip step 11 Install Spacer 14 onto the Input Shaft 11 against the Input Gear 13 NOTE Refer to Figure 2 with 18 24 31 amp 43 1 Ratios NOTE For 18 24 37 amp 43 1 ratios Skip step 12 Install Input Gear 13 with counter bore down to mesh with the teeth of Cluster Gear 3F Continued on Next Page 34 13 14 15 16 17 Install Cover Sub Assembly onto the Ring Gear 4 being sure that the pipe plugs the Hub 1G and Cover 6A are in time with each other Be sure the Thrust Washers 15 amp 16 remain on the Cover 6 Install four Shoulder Bolt
6. Planetary Final Drive Service Manual Lubrication Information The lubricant used in most Torque Hub drives should be petroleum based gear fluid containing anti oxidation anti foaming and extreme pressure additives The lubricant should have a minimum viscosity index of 95 cst and maintain a minimum viscosity of 40 cst under normal operating conditions Some applications require special considerations consult the machine manufacturer and Oerlikon Fairfield for more additional information General Properties The table below lists the recommended viscosities for various ambient operating temperatures These recommendations are based on temperature rise of 50 to 100 F at normal operating conditions Differential Planetary Simple Planetary Ambient AGMA AGMA Temperatur ISO Index Lubricate ISO Index Lubricate Number Number 40 10 5 F VG100 3EP VG100 3EP 5 to 40 F VG150 4EP VG100 3EP 40 to105 F VG220 VG320 5EP 6EP VG150 VG220 4EP 5EP 105 to 60 VG460 7EP VG320 6EP Footnotes 1 For operation in this ambient temperature range synthetic oil is recommended with a pour point of 10 F lower than the minimum ambient temperature 2 For operation in this ambient temperature range synthetic oil is recommended for proper lubricant life at elevated temperatures Continued on Next Page Oil Fill Level Oil amounts for each series of Torque Hub drives are ind
7. using Stud pressing fixture press Studs 1N into the flange holes of the Hub 1G be sure stud heads are tight to the hub flange face Place Hub 1G on table such that long hub end is up Press Bearing Cup 1E using T148905 with the large diameter side up into cover end of Hub 1G Turn Hub 1G over and press Bearing Cup 1C into Hub 1G using T148905 with small diameter side up NOTE Apply generous amount of lubricating oil on all bearings at the time of installation Place Bearing Cone 1D on Bearing Cup 1C Press Bearing Seal 1B with the open face down into the Hub 1G be sure seal is flush with the hub face NOTE Generally Seals should not be reused If the unit requires Seal Boot 1Q place on Hub 1G with flange end facing up Coat the inside surface of the seal boot flange with liberal amount of grease Place Spindle 1A with large diameter end down on the bench and coat the seal shoulder with oil Continued on Next Page 28 10 11 12 13 14 15 16 17 18 19 Place Hub 1G onto Spindle 1A making sure the Seal 1B is position on the seal shoulder of Spindle 1A NOTE The Bearing Cone 1F is a press fit onto Spindle 1A and is installed using Snap Ring Assembly Tool T205660 Place Snap Ring Assembly Tool T205660 onto Spindle 1A Place Bearing Cone 1F onto the tapered portion of Snap Ring Assembly Tool T205660 Place Spacer 1H and Retaining Rin
8. 4 01 1 42 148905 ASSEMBLY PRESSING TOOL BELL CENTERS BOTH ENDS STOCK SIZE OR PART NUMBER FAIRFIELD GEARED FOR EXCELLENCE LAFAYETTE INDIANA USA ASSEMBLY 50 7 00 ONE 4140 STL DRAW 37 40 PRESSING TOOL LOOSE DETAILS BE STAMPED WITH THEIR RESPECTIVE NUMBERS BREAK CORNERS EXCEPT CUTTING EDGES TOLERANCE ON OIMENSIONS UNLESS OTHERWISE SPECIFIED 005 XX 015 09 UNLESS OTHERWISE SPECIFIED ALL CHAMPERS 04 45 RADII 06 R 7 DRAWN DO NOT SCALE DRAWING REPORT ERRORS RAS 04 28 07 STAMP PART NO STAMP TOOL NO 1148905 43 2 ED REWORK WELD 100 EAVE SOFT 44 ASSEMBLY PRESSING TOOL 1155783 GEARED FOR EXCELLENCE LAFAYETTE INDIANA USA TOOL ASSEMBLY PRESSING TOOL ONE 4340 STL DRAW Rc 37 ALL LOOSE DETAILS TO BE STAMPED WITH THEIR RESPECTIVE NUMBERS GREAK ALL CORNERS EXCEPT CUTTING EDGES TOLERANCE ON DIMENSIONS UNLESS OTHERWISE SPECIFIED XXX 2005 015 030 UNLESS OTHERWISE SPECIFIED ALL E d CHAMFERS 06 145 RADII 06 R 475 PCD11 T155783 220225 LEAK TEST ADAPTER PLATE 375 18 NPT TAP HOLE AS SHOWN
9. ESS CTHERWISE SPECINEO CHAMPERS 04 X 45 RADI 04 R Gam SPALAR TO STAMP PART STAMP TOOL NO 28 223989 49 223990 ROLL TEST TOOL STOCK SIZE OR PARTNUMBER STAMP PART NO STAMP TOOL NO 50 223997 ROLL TEST TOOL STOCK OR PART NUMBER PARAPLU LD ROTTER DESCRIPTION A _ ON OMINYONS UOS KLOS UNLESS OTHERWISE AU CHAMPERS 08 X 45 RADIT 04 an WEG Bman 5 TOOLNO 1223997 7 51 Mailing Address Shipping Address Fax E mail Website Planetary Final Drive Repair Instructions With over 80 years of experience Fairfield Manufacturing has become the largest U S non captive producer of gears custom gear assemblies planetary final drives and related gear products Fairfield Manufacturing headquartered in Lafayette Indiana is distinguished by our extensive design manufacturing and applications engineering capabilities Our 500 000 square foot plant is a modern fully equipped manufacturing facility that includes a full service heat treat department Our philosophy of synchronous engineering is a partnership that matches our best and brightest people with your people to evaluate your unique requirements and develop
10. Next Page HUB SPINDLE SUBASSEMBLY INPUT SHAFT SUBASSEMBLY 9 SUBASSEMBLY Figure 1 30 35 50 54 4 73 1 Ratios DP SUBASSEMBLY 4 Figure 2 18 24 31 amp 43 1 Ratios HUB SPINDLE SUBASSEMBLY INPUT SHAFT SUBASSEMBLY 32 1 Place Hub Spindle Sub assembly on the table with Spindle flange side down 2 Set the Internal Gear 2 with the spline down so that the spline of the spindle 1A is in mesh with the internal spline of the Internal Gear 2 3 Install Input Shaft Subassembly with the retaining ring end down into the spindle counter bore 4 Slide Thrust Spacer 12 over the Input Shaft 11 Make sure the large is against the Spindle 1A NOTE Refer to Figure 2 with 18 24 31 amp 43 1 Ratios CARRIER SUBASSEMBLY 5 Place Carrier Subassembly with the large end of Cluster Gears facing up Position all three punch marks on the face of large gears at 12 o clock and secure the gear teeth using timing fixture 6 With longer shoulder side of Ring Gear 4 facing down place the ring gear into mesh with the Cluster Gear 8F and remove this assembly from timing fixture Continued on Next Page 33 10 11 12 NOTE sure that punch marks remain their correct location during Ring Gear 4 installation Place Thrust Washer 15 Thrust Bearing 16 and Thrust Washer 15 in order on the pilot diameter on Internal Gear 2 NOTE For 30
11. TERNAL RETAINING RING 38 Planetary Final Drive Repair Instructions Assembly Tools 114920 CRADLE FOR STAKING PLANET PLACE 2 127 0 7 1 3 HS 7 39 PLUG FOR PRESSING OIL SEAL 1122786 6 HOLES SPACED LOCATED ONE 4140 STL DRAW 40 45 40 134344 SNAP RING SEATING TOOL 93 75 3 1500 1550 2 1 222 6 50 ONE 4140 STL DRAW Re 40 45 BELL CENTERS ENDS STOCK SIZE OR PART NUMBER GEARED FOR EXCELLENCE LAFAYETTE INDIANA US A SNAP RING SEATING TOOL ALL LOOSE DETAILS TO BE STAMPED WITH THEIR RESPECTIVE NUMBERS BREAK ALL CORNERS EXCEPT CUTTING EDGES TOLERANCE ON DIMENSIONS UNLESS OTHERWISE SPECIFIED 00S KK OTK 006 UNLESS SPECIFIED ALL CHAMFERS 06 X 45 RADE OS 8 DO NOT SCALE DRAWING REPORT ERRORS ADDED HAND GUARD 8 REDRAWN REDESIGNED 09 gt RAS 06 28 07 STAMP PART NO STAMP TOOL NO 1134344 41 137970 TOOL TO PRESS BEARING 9 10 180 US 0 01 3782 9118 NI 111113 30 3114 40 3215 8915 5538
12. Using a hammer and punch drive the inboard Bearing Cup 1E out of the Housing 1G careful not to damage the counter bore in the housing Turn the Housing 1G over and drive the outboard Bearing Cup 1C out of the Housing 1G Be careful not to damage the counter bore in the housing This concludes the Housing Spindle Disassembly Be 21 5 INTENTIONALLY LEFT BLANK 22 ASSEMBLY Planetary Final Drive Service Manual Cover Subassembly 1 Screw Pipe Plug 6H into Cover Plate 6A using thread sealant hand hexagonal wrench 2 Apply grease and position O Ring 6G over Cover Cap 6B until it rests against the flange 3 Blow out internal groove of Cover Cap 6B with air hose Place greased O Ring 6F into internal groove of Cover Cap 6B NOTE The Disconnect Rod 6E may be used to push the greased O Ring 6F into position in the O Ring groove of the Cover Cap 6B 4 Place Cover Cap 6B into Cover Plate 6A with larger flange hole on Cover Cap 6B located over Pipe Plug 6H Fasten Cover Cap 6B with two Bolts 6C located 180 degrees apart Torque Bolts to 70 80 in lbs 5 Place Disengage Cap 6D on Cover Cap 6B with nipple facing out Secure with two Bolts 6C located 180 degrees apart Torque Bolts 6C to 70 80 in lbs 6 Turn Cover Plate 6A over and push Disconnect Rod 6E into Cover Cap 6B until Disconnect Rod 6E bottoms out on the Disengage Cap 6D Continu
13. cerlikon fairfield Torque Hub Planetary Final Drive W3B W3C Series Service Manual Rev 03 07 13 1 While every precaution has been taken in the preparation of this document Fairfield Manufacturing Co Inc assumes liability with respect to the use of the documentation described herein or for any act or omission of Fairfield Manufacturing Co Inc concerning this documentation Torque Hub is a registered trademark of Fairfield Manufacturing Co Inc Features and specifications are subject to change without notice Disassembly Instructions Assembly Instructions General Information Planetary Final Drive Service Manual Content Introduction Roll and Leak Test Tightening and Torquing Bolts Lubrication Information Main Disassembly Carrier Disassembly Coupling Disassembly Input Shaft Disassembly Cover Disassembly Housing Spindle Disassembly Cover Subassembly Carrier Subassembly Housing Spindle Subassembly Coupling Subassembly Input Shaft Subassembly Main Assembly Assembly Drawing Parts List Assembly Tools Contact Information Planetary Final Drive Service Manual Introduction This manual is a step by step guide to the disassembly and assembly of the W3C W3B Series Torque Hub units It is designed for the customer or mechanic who is repairing this particular Torque Hub model Users of this manual should note that each part mentioned is followed by an identification number enclosed in parenth
14. ed on Next Page 24 7 Grease install O Ring 5 into groove on the Cover Plate 6A 8 Grease and install Thrust washers 15 and Thrust Bearing 16 into Cover Plate 6A NOTE Thrust Washers 15 has to be assembled onto either sides of Thrust Bearing 16 and then this has to be greased and installed as a single unit into Cover Plate 6A This concludes the Cover Subassembly 25 Planetary Final Drive Service Manual Carrier Subassembly 27 7 Apply a liberal coat of grease to the bore of Cluster Gear This will enable the Needle Rollers to be held in place during assembly Install first row of 14 Needle Rollers 3C into the bore of Cluster Gear 3F NOTE The last roller installed must be installed end wise That is the end of the last roller must be placed in between the ends of the two rollers that form the space and then slid parallel to the other rollers into place Place one Spacer 3D on top of the Needle Rollers inside the Planet Gear Install second row of 14 Needle Rollers into the bore of Cluster Gear against Spacer 3D Grease and install Ball Indent Washers 3H onto the counter bores of either sides of Cluster Gear with indents away from the cluster gears Place Carrier 3A into tool fixture so that one of the roll pin holes is straight up Start Planet Shaft 3E with end opposite roll pin hole first through the planet shaft hole in car
15. eses These part numbers may be referred to in the Parts List and Assembly Drawing sections of this manual Specialized tools used to assemble this unit are noted in the assembly procedures and diagrammed in the Assembly Tools section Users should familiarize themselves with the procedures for roll and leak testing as well as bolt tightening and torquing found on the following three pages before starting any repairs Standard safety practices should be followed during the disassembly and assembly procedures described Safety glasses and safety shoes should be worn and heavy heat resistant gloves should be used when handling heated components Be especially alert when you see the word CAUTION This indicates that a particular operation could cause personal injury if not performed properly or if certain safety procedures are not followed The word NOTE is used to bring attention to certain procedures or helpful hints that will aid in the disassembly and assembly process The Roll Test Continued on Next Page Planetary Final Drive Service Manual Roll and Leak Test Torque Hub units should always be roll and leak tested before disassembly if possible and after assembly to make sure the unit s gears bearings and seals are working properly The following information briefly outlines what to look for when performing these tests The purpose of the roll test is to determine if the unit s gears are rotating consistently easily a
16. g 11 onto the top of the Bearing Cone 1F Slowly press Bearing Cone 1F Spacer 1H and Retaining Ring 11 all at once using a Bearing Pressing Tool 1137970 until the Retaining Ring 11 falls into the retaining ring groove on the Spindle 1A Install Pipe Plug 1J into Hub 1G Grease and install O Ring 5 into Hub 1G Grease and install Thrust Washer 7 into Spindle 1A Install Spring 8 into Spindle 1A until it Bottoms on Thrust Washer 7 Grease and place second Thrust Washer 7 on Spring 8 Using retaining ring pliers push Retaining Ring 9 against Thrust Washer 7 until retaining ring snaps into place in the Spindle 1A groove This concludes the Housing Spindle Subassembly 29 Planetary Final Drive Service Manual Coupling Subassembly CAUTION Safety glasses must be worn during these next steps 1 If necessary install External Retaining Ring 21 into groove on OD of Coupling 19 2 If necessary install Internal Retaining Ring 20 into retaining ring groove of the Coupling 19 This concludes the Coupling Subassembly 30 Planetary Final Drive Service Manual Input Shaft Subassembly CAUTION Safety glasses must be worn during these next steps 1 If necessary install Retaining Ring 10 onto the groove of Input Shaft 11 This concludes the Input Shaft Subassembly 31 Planetary Final Drive Service Manual Main Assembly INPUT COUPLING SUBASSEMBLY Continued on
17. icated in the appropriate series literature An initial oil change should be made after the first 50 hours of operation Subsequent oil changes should be made at 1 000 hour intervals or annually whichever comes first Oil temperatures should be not higher than 160 to 180 F for continuous operation and no higher than 200 F for intermittent operation For special applications high horsepower high speeds or wide temperature changes please consult Oerlikon Fairfield When the Torque Hub unit is mounted horizontally unless otherwise specified the gearbox should be filled half full of oil Consult the appropriate series literature for approximate fill volumes Vertically mounted Torque Hub units may require special lubrication procedures Please contact Oerlikon Fairfield for vertically mounted applications 5 INTENTIONALLY LEFT BLANK 10 DISASSEMBLY Planetary Final Drive Service Manual Main Disassembly 1 Perform roll check and leak check prior to disassembling the unit 2 Remove the magnetic Pipe Plug 6H from Cover Plate 6A and drain the oil out of the gearbox NOTE Record the condition and volume of the oil 3 Remove eight of Bolts 17 followed by four of Bolts 18 from Cover Subassembly 4 Lift the Cover Subassembly off of the unit 5 Lift Ring Gear 4 off the unit Continued on Next Page 12 INPUT COUPLING SUBASSEMBLY HUB SPINDLE SUBASSEMBLY INPUT SHAFT SUBASSEMBLY
18. nd properly Release the brake by applying 400 Psi to the brake port To perform a roll test use the recommended tool from table below or something equivalent to apply constant rotational force to the input of the gearbox If more drag is felt in the gears only at certain points then the gears are not rolling consistently and easily and should be examined for improper installation or defects Some gear packages roll with more difficulty than others Do not be concerned if the gears in the unit seem to roll hard as long as they roll with consistency Rotate the gearbox both clockwise and counterclockwise the same number of turns as the ratio of the unit The gearbox ratio is the same number as the last three numbers on the ID tag ROLL CHECK TOOL Model code Roll Test Tool 223988 4 223989 7 1223990 1223997 Leak Test The purpose of a leak test is to make sure the unit is airtight To perform a leak test use the leak test fixture from the table below If the tool is not available the gearbox must be sealed to perform the test This can be accomplished by assembling the sealed input device onto the gearbox at the input end and replace one of the oil plugs with an air chuck DO NOT EXCEED 10 PSI PRESSURE DURING THE LEAK TEST Higher pressure will create a false sealing effect in assemblies with lip seals The uni
19. nside of the Planet Gear 7 Repeat steps 1 6 for the remaining two Planet Gears This concludes the Carrier Disassembly 15 Planetary Final Drive Service Manual Coupling Disassembly CAUTION Safety glasses must be worn during this next steps 1 If necessary remove Internal Retaining Ring 20 from the groove of Coupling 19 2 If necessary remove External Retaining Ring 21 from the groove of Coupling 19 This concludes the Coupling Disassembly 16 Planetary Final Drive Service Manual Input Shaft Disassembly CAUTION Safety glasses must be worn during this next steps 1 If necessary remove External Retaining Ring 10 from the groove of the Input Shaft 11 This concludes the Input Shaft Disassembly 17 Planetary Final Drive Service Manual Cover Disassembly 1 Remove the O Ring 5 from groove in Cover 6A and Discard O Ring 2 Remove two Thrust Washers 15 and Thrust Bearing 16 from Cover 6A 3 Remove two Hex Bolts 6C from Disengage Cap 6D if required 4 Remove the Disengage Cap 6D from the Cover Cap 6B 5 Pull the Disengage Rod 6E out of the Cover Cap 6B 6 Remove O Ring 6F from the Cover Cap 6B and discard it 7 Remove two Hex Bolts 6C from Cover Cap 6B if required 8 Remove Cover Cap 6B from Cover Plate 6A 9 Remove O Ring 6G and discard it 10 Remove Pipe Plug 6H from the Cover 6A This concludes the Cover Disassembly
20. products and assemblies that meet your needs For more information contact Fairfield Manufacturing today Fairfield Manufacturing Co Inc U S 52 South P O Box 7940 Lafayette IN 47903 7940 2309 Concord Road Lafayette IN 47909 Main 765 772 4001 Applications Engineering 765 772 4011 Sales and Service 765 772 4010 Applications Engineering apps fairfieldmfg com Sales sales fairfieldmfg com www fairfieldmfg com 52 5 INTENTIONALLY LEFT BLANK 53 cerlikon fairfield Oerlikon Fairfield U S 52 South P O Box 7940 Lafayette IN 47903 USA 765 772 4000 www oerlikon com fairfield 54
21. rier making sure that the roll pin hole with the large chamfer in the planet shaft is straight up Continued on Next Page 26 10 11 12 Using ample grease to hold it in position slide one Thrust Washer 3B over Planet Shaft 3E with tang resting in the cast slot of Carrier 3A With large end of Cluster Gear 3F facing the roll pin hole in the Carrier 8A place Cluster Gear into position in Carrier and push Planet Shaft through the Cluster Gear without going all the way through Slide the second Thrust Washer 3B between the Cluster Gear and the Carrier with the tang of Washer located in the cast slot of Carrier 3A Finish sliding Planet Shaft through the Thrust Washers 3H and 3B and into Carrier Position the chamfered side on the Planet Shaft 3E roll pin hole so that it is in line with the hole in the Carrier 3A using a 1 8 inch diameter punch After using a 3 16 inch punch to align the two roll pin holes Drive the Roll Pin 8G through Carrier 3A and into Planet Shaft 3E until the Roll Pin 3G is flush with the bottom of the cast tang slot in the Carrier Use a 1 4 inch pin punch to make sure the Roll Pin 3G is flush in the slot Repeat the steps 1 through 11 for the remaining two Cluster Gears 3F This concludes the Carrier Subassembly 27 Planetary Final Drive Service Manual Housing Spindle Subassembly If required
22. s 18 into the four marked counter bore holes in the Hub 1G Start Shoulder Bolts 18 by hand for the length of at least two threads or two full turns before running down and torque to 45 47 ft lbs Place the remaining eight Bolts 17 into the remaining holes and torque to 45 47 ft Lbs Turn the assembly over and insert Input Coupling Subassembly into the Spindle 1A counter bore The unit should now be leak and roll checked as per instructions on page 5 and 6 The motor can be reinstalled into the gearbox for the leak check to seal it off and the unit pressurized through a pipe plug hole on the cover This concludes the Main assembly 35 Planetary Final Drive Service Manual Assembly Drawing INPUT COUPLING SUBASSEMBLY HUB SPINDLE SUBASSEMBLY INPUT SHAFT SUBASSEMBLY HUB SPINDLE SUBASSEMBLY INPUT SHAFT SUBASSEMBLY CARRIER SUBASSEMBLY 36 Planetary Final Drive Repair Instructions Parts List Number 6 iD 1 1 7 iN 10 2 3 3A a 36 3D 36 6 BAL NDENTWASHER 4 5 88 60 oF 56 8 7 9 10 1 EXTERNAL RETAINING RING 11 1 INPUT SHAFT Number Qty Description 12 1 INPUT SPACER 13 1 SUN GEAR 14 1 SPACER 15 4 THRUST WASHER 16 2 THRUST BEARING 17 8 HEX BOLT 18 4 SPECIAL BOLT 19 1 COUPLING 20 1 INTERNAL RETAINING RING 1 21 EX
23. t has a leak if the pressure gauge reading on your leak check fitting starts to fall after the gearbox has been pressurized and allowed to equalize Leaks will most likely occur at the pipe plugs the main seal or wherever o rings or gaskets are located The exact location of a leak can usually be detected by brushing a soap and water solution around the main seal and where the o rings or gaskets meet on the exterior of the unit and then checking for air bubbles If a leak is detected in a seal o ring or gasket the part must be replaced and the unit rechecked Leak test at 10 psi for 20 minutes LEAK CHECK TOOL Model code Leak Test Tool 220225 7201476 Planetary Final Drive Service Manual Tightening and Torquing Bolts If an air impact wrench is used to tighten bolts extreme care should be taken to ensure the bolts are not tightened beyond their specified torque The following steps describe how to tighten and torque bolts or socket head cap screws in a bolt circle BOLT A Tighten but do not torque bolt A until snug Go to the opposite side of the bolt circle and tighten bolt B until equally snug Crisscross around the bolt circle and tighten the remaining bolts Use a torque wrench to apply the specified torque to bolt Using the same sequence crisscross around the bolt circle and apply an equal torque to the remaining bolts
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