MAINTENANCE INTERVALS - Safety
Contents
1. 1 Illustration 65 900873526 Note Wipe the fittings before you lubricate the fittings 1 Lubricate fitting 1 This fitting lubricates the gear The fitting is located to the left of the rotation motor 2 Rotate the shear for 120 degrees and lubricate fitting 1 3 Repeat Step 2 Grease will be evenly distributed throughout the gear Illustration 66 900873533 4 Lubricate bearing 2 The lubrication point is located 180 from the motor SEBU7420 08 45 Maintenance Section Gear and Bearing Lubricate 101695935 Gear and Bearing Lubricate SMCS Code 4055 086 S N CLE1 244 S N FDK1 344 365 and S390 Illustration 67 g00872796 Note Wipe the fittings before you lubricate the fittings 1 Lubricate the fittings 1 The fittings are located by the rotation motors 2 Rotate the shear for 120 degrees and lubricate fittings 1 3 Repeat Step 2 Grease will be evenly distributed throughout the gear 4 Lubricate bearing 2 The two lubrication points for the bearing are located on the side of the housing near the hydraulic connections 101695944 Gear and Bearing Lubricate SMCS Code 4055 086 S N CLE245 Up S N FDK345 Up 365 and 390 Illustration 68 g00872720 Note Wipe the fittings before you lubricate the fittings 1 Lubricate the fittings2. o oo Y S NS Illustration 102 g00878756 D 40 degrees E 10 mm 0 39 inch for the S320 through S365 shears and 12 mm 0 47 inch for the S390 shear 5 Grind a bevel to width E with an angle D on the nose of the upper jaw in order to create a space for welding the wear tip onto the upper jaw Illustration 103 g00861464 6 Template 7 Reference surface 6 Place template 6 against reference surface 7 in order to determine the location of the new wear tip Place the new wear tip onto the upper jaw of the shear 7 Tack weld the new wear tip to the upper jaw of the shear Check for proper positioning 8 Preheat the surface of the nose of the upper jaw to 150 C 302 F to 200 C 392 F Table 29 Sales Welding Welding Model Wear Tip Height X Height Y 12 mm 4 mm 320 217 5055 0 4724 0 1575 inch inch 14 mm 5 mm 325 218 0033 0 5512 0 1969 inch inch 14 mm 5 mm 340 218 0034 0 5512 0 1969 inch inch 16 mm 7 mm 365 218 0035 0 6299 0 2756 inch inch 20 mm 7 mm 390 218 0036 0 7874 0 2756 inch inch 62 Maintenance Section Wear Tip Inspect Replace SEBU7420 08 j oooj Illustration 104 900872862 A Hard surfacing B Bevel groove weld C Fillet 9 In order to weld the wear tip use welding material AWS A5 28 96 ER100S G Weld the wear tip onto the upper jaw Refe
3. Illustration 61 g01144340 17 Slowly close the upper jaw When the surface of the cutters are close stop the jaw Cutter Guide Cutter material to cut Less than 6 mm 0 5 mm 0 23 inch 0 02 inch 1 nm 0 04 inch Greater than 6 mm 0 23 inch Less than 2 mm 0 08 inch Less than 5 mm 0 20 inch 21 Loosen bolts 22 Install the shims that are needed for the proper clearance 23 Tighten the bolts Refer to Table 13 for the correct torque value 101491459 Cutting Arm Preload Adjust SMCS Code 6344 025 AN 6349 025 ZP S N BRD1 Up The following procedure releases the preload for the cutting arm of the shear SEBU7420 08 43 Maintenance Section Cutting Edge Screws Tighten 900774447 Illustration 62 1 Remove three bolts 2 that secure nut 1 2 Loosen three bolts 3 3 Remove three cone point setscrews 4 4 Loosen three dog point setscrews 5 Use the following steps in order to set the preload on the cutting arm 1 Install three dog point setscrews 5 into the frame of the shear Tighten the dog point setscrews to a torque value of 55 10 N m 41 7 Ib ft 2 Install three cone point setscrews 4 on top of dog point setscrews 5 Tighten the cone point setscrews to a torque value of 55 10 N m 41 x 7 Ib ft 3 Install three bolts 2 onto cone point setscrews 4 Tighten the three bolts 4 Tighten three bolts 3 to a
4. Table 13 Torque values for the bolts for the cutting edges Sales Model Bolt Size Torque Value S305 M12 x 1 75 o EIE 320 M20 x25 360 50 Ib fD 325 M20 x 2 5 20 26 E S330 M20 x 2 5 sod m BT s365 M20x25 360 50 Ib f 5390 M24x3 0 664E 74 Ib 1 1 2 Illustration 60 900763257 15 Remove shear lock 1 from the cover 3 16 Start the host machine 12 10 Ava B y n 17 18 Inspect the upper jaw for wear If the dimension B is greater than10 mm 0 4 inch the upper jaw must be repaired Refer to the Operation and Maintenance Manual Jaw Repair 19 Measure the clearance between the surface of the upper jaw and the guide blade 7 The clearance between the surface of the upper jaw and guide blade must be less than 1 0 mm 0 04 inch Use the shims to adjust the amount of clearance If the thickness of the shims is greater than 5 0 mm 0 20 inch wear plate 17 must be replaced 20 Measure the clearance between the cutting edge 10 of the upper jaw and cutting edge 6 of the lower jaw The clearance between the surface of the upper jaw and guide blade must be less then 0 5 mm 0 02 inch Use the shims to adjust the amount of clearance Note Refer to Table 14 for a guide to the clearance between the cutters Table 14 Maximum Clearances Between the Cutters Thickness of
5. 1 The fittings are located by the rotation motors 2 Rotate the shear for 120 degrees and lubricate fittings 1 3 Repeat Step 2 Grease will be evenly distributed throughout the gear 4 Lubricate bearing 2 The two lubrication points for the bearing are located on the side of the housing near the hydraulic connections 46 Maintenance Section Hub Nut Check Tighten SEBU7420 08 102234280 Hub Nut Check Tighten SMCS Code 6344 527 NT 6344 535 NT NOTICE Make sure to check the torque on the hub nuts prior to cutting thin plate Incorrect torque can lead to thin plate jamming between the jaws of the shear This can cause damage to the work tool A677 EUN WZ 4 NY Illustration 69 901029238 Table 16 Sales Model Part Number of Wrench 305 169 7192 320 169 7192 325 169 7192 340 169 7192 365 169 7192 390 201 8835 The play between the guide cutters should be less than 1 mm 0 04 inch 1 Remove lock bolt 1 2 Check torque on hub nut 2 Torque on hub nut 2 should be 300 N m 220 Ib ft 3 If necessary tighten the hub nut 2 to a torque value of 300 N m 220 Ib ft 4 Install lock bolt 1 Hydraulic Fittings Inspect SMCS Code 5057 040 X6 M N Illustration 70 900757222 Inspect the h
6. 60 Initial 20 Service Hours Hub Nut Check Tighten aiene 46 Every 10 Service Hours or Daily Rotator Head Bolts Inspect ssussse 57 Initial 25 Service Hours Jaw Repait 2 eit lee hein 46 Every 100 Service Hours Rotator Head Bolts Check sss 56 SEBU7420 08 35 Maintenance Section Access Cover Remove Inspect 102236649 Access Cover Remove Inspect SMCS Code 6344 011 AO 6344 040 AO 101439514 Bushings Lubricate SMCS Code 6700 086 b Illustration 44 g01029345 Remove the Access Cover 1 Use an allen wrench to loosen the bolts 3 Loosen the bolt until resistance is felt 2 Push down the bolts Turn the bolts by 180 3 Remove the access cover 1 Install the Access Cover 1 Install the access cover 1 2 Push down the bolts and turn the bolts until the latches 2 are visible through the slots 4 at the edge of the access cover Note If the latches are not visible through the slots 4 at the edge of the access cover the access cover will not lock in place 3 Use an allen wrench to tighten the bolts 3 Tighten the bolts until resistance is felt Illustration 45 900754434 1 Close the jaw of the shear 2 Place the shear on the ground 3 Turn off the engine of the host ma
7. 8 and 9 at the front of the jaws and guide blade 4 on the shear jaw are equipped with a lock bushing 6 When the thickness of shims 5 under guide blade 4 is more than 2 mm 0 08 inch you should mount shims 7 behind lock bushing 6 The amount of shims 7 is determined by subtracting 2 mm 0 08 inch of thickness from amount of shims under guide blade 4 This will allow lock bushing 6 to function properly 8 Check guide blade 4 If there is an unused edge you can use the guide blade again Clean all surfaces of the guide blade Grind any burrs on the guide blade 9 Inspect the pocket for the guide blade for any wear or damage If necessary repair the jaw Refer to the Operation and Maintenance Manual Jaw Repair for more information 10 Inspect the pockets for the cutting edges for any wear or damage If necessary repair the jaw Refer to the Operation and Maintenance Manual Jaw Repair for more information f peu 7 T SN 13 Coat the bolts with 5P 3931 Anti Seize Compound Note The cutting edges must be in front of the base material for clearance The cutting edges must be in front of the base material in order to reduce the wear of the material 14 Install shims 10 in the lower jaw and in the upper jaw The shims must equal a minimum of 2 mm 0 08 inch Shims are used in order to adjust the clearance between the cutting edges Install the cutting edges i
8. 198 7100 Bar through the holes in the frame of the shear Refer to Table 9 for the part number of the shear lock Refer to Illustration 46 for installing the bar Install the bolts and the nuts on both ends of the bar This will prevent the jaw from closing b In order to hold the shear in the open position for the S320 through S390 install shear lock 1 onto cover 3 The shear lock must be installed behind guide block 2 for the cover Refer to Illustration 47 Refer to Table 9 for the part numbers of the shear locks 2 Inspect the cutters for wear or damage Check the cutters for cracks 3 Inspect the radius of the cutting edge of the cutter If the radius of the cutting edge is greater than 5 mm 0 2 inch you must replace the cutter 4 If the cutter is damaged or the cutter is cracked you must replace the cutter Replace the Cutters Note Make adjustments to the main pivot point on the S305 before adjusting or before replacing the cutters Refer to the Operation and Maintenance Manual Cutting Arm Preload Adjust for more information SEBU7420 08 37 Maintenance Section Cutters Inspect Replace Illustration 48 900778397 S305 Illustration 49 900763257 320 through S390 1 Open the jaw of the shear The following procedures describe maintaining the jaw in the open position a I
9. 200 2960 340 200 2885 365 200 2961 390 200 2962 1 2 Illustration 74 g00763257 1 Open the jaw of the shear In order to hold the shear in the open position install shear lock 1 onto cover 3 The shear lock must be installed behind guide block 2 for the cover Refer to Table 22 for the part numbers of the shear locks Illustration 75 g00777348 Upper jaw Surface of the upper jaw Guide surface of the upper jaw Template Reference surface 4 5 6 7 8 9 Front plate 2 Grind surface 5 of the upper jaw The surface should be clean and free of rust 3 Preheat surface 5 of the nose of the upper jaw to 150 C 302 F to 200 C 392 F 4 These items are recommended for the hard surfacing of the material e LINCOLN Wearshield ME welding rod e ESAB Wear Arc 5 welding rod e Welding material DIN8555 MF6 55GP Welding material with the chemical composition mentioned in table 23 Table 21 03 Mn Si Cr Mo Hardness Hrc 0 5 0 6 0 6 45 0 8 0 8 1 0 10 65 12 96 61 5 Weld a closed bed of beads on the nose of the upper jaw Lay one bead lengthwise next to the previous bead 6 Use template 7 in order to check guide surface 6 of the upper jaw 50 Maintenance Section Jaw Repair SEBU7420 08
10. guide blade 4 must be less than 1 0 mm 0 04 inch Use the shims to adjust the amount of clearance If the thickness of the shims is greater than 5 0 mm 0 20 inch the guide surface of the upper jaw must be repaired If the amount of shims 5 under guide blade 4 is changed then the amount of shims 7 behind lock bushing 6 should be changed 40 Maintenance Section Cutters Inspect Replace SEBU7420 08 102237416 Cutters Inspect Replace SMCS Code 6801 040 6801 510 S N CLE245 Up S N FDK345 Up S N CFW208 Up S N CDX125 Up S N CKY182 Up Inspect the Cutters Table 12 Sales Model Shear Locks 320 200 2959 325 200 2960 S340 200 2885 S365 200 2961 S390 200 2961 i 2 Illustration 55 900763257 Hydraulic cylinder for S320 through S390 1 Open the jaw of the shear The following procedures describe maintaining the jaw in the open position a In order to hold the shear in the open position for the S320 through S390 install shear lock 1 onto cover 3 The shear lock must be installed behind guide block 2 for the cover Refer to Table 12 for the part numbers of the shear locks 2 Inspect the cutters for wear or damage Check the cutters for cracks 3 Inspect the radius of the cutting edge of the cutter If the radius of the cutting edge is greater than 5 mm 0 2 inch you mu
11. inch 0 08 inch 0 20 inch Table 18 Sales Model Part Number of Wrench 305 169 7192 320 169 7192 325 169 7192 340 169 7192 S365 169 7192 390 201 8835 1 Open the jaw of the shear 2 Remove the guide blade E m l NA Ms f WAS A NY KE 4 T KY Illustration 71 900774813 3 Remove lock bolts 1 Remove nut 3 Remove nut 2 4 Remove shims 4 5 Install nut 2 In order to remove any play in the joint tighten the nut to a torque value of 300 N m 220 Ib ft 6 Remove nut 2 Table 19 Sales Model Part Number of Ring 5 320 169 7193 325 169 8915 340 195 0801 365 197 7841 390 201 8836 xU TIE I Illustration 72 900774816 7 Install ring 5 Refer to Table 19 for the part numbers of the rings 8 Install nut 2 Tighten the nut to a torque value of 300 N m 220 Ib ft 9 Carefully close the jaw 10 Install nut 3 Tighten the nut until the clearance of the cutters is correct Refer to Table 17 for recommended clearances Install bolts 1 into nut 3 in order to lo
12. of the fumes Use ventilation exhaust at the arc or both to keep fumes and gas es from your breathing area Wear eye ear and body protection before working Protect yourself and others read and understand this warning Fumes and gases can be dangerous to your health Ultraviolet rays from the weld arc can injure eyes and burn skin Electric shock can cause death Read and understand the manufacturer s instruc tions and your employer s safety practices Do not touch live electrical parts See American National Standard Z49 1 Safety in Welding and Cutting published by the American Welding Society American Welding Society 2501 N W 7th Street Miami Florida 33125 See OSHA Safety and Health Standards 29 CFR 1910 available from U S Department of Labor U S Department of Labor Washington D C 20210 NOTICE Before carrying out arc welding on the machine or on any equipment attached to the machine disconnect all power and ground leads from the batteries in order to avoid possible damage to electronic components Personal injury can result from flame cutting or welding on painted areas The effect of gasses from burned paint is a hazard to the person doing the cutting or welding Do not flame cut or weld on painted areas SEBU7420 08 49 Maintenance Section Jaw Repair Table 20 Sales Model Part Number of Shear Lock 1 S305 199 8486 320 200 2959 325
13. the end plate Z of the housing Y Check for proper positioning Refer to table 27 for dimensions and part numbers of the wear plates Refer to illustration 97 for dimensions and part numbers of the wear plates Preheat the surface of the end plate Z to 150 C 302 F to 200 C 392 F In order to weld the wear plate K L M use welding material AWS A5 28 96 ER100S G 60 Maintenance Section Wear Tip Inspect Replace SEBU7420 08 8 Cool the weld slowly to room temperature 9 Remove all debris from the welds Paint the welded area with primer Allow primer to completely dry 10 Paint the welded area with a final coat of paint 11 Remove lock jaws Refer to Operation and maintenance manual Cutters Inspect Replace 102270537 Wear Tip Inspect Replace SMCS Code 6801 040 6801 510 6829 040 6829 510 S N CLE245 Up S N FDK345 Up S N CFW208 Up S N CDX125 Up S N CKY182 Up Inspect the Wear Tip Table 28 Sales Model Shear Locks 320 200 2959 325 200 2960 340 200 2885 365 200 2961 390 200 2962 1 2 Illustration 98 900763257 Hydraulic cylinder for S320 through S390 1 Shear lock 2 Guide block 3 Cover 1 Open the jaw of the shear The following procedures describe maintaining the jaw in the open position a In order to hold the sh
14. torque value of 55 10 N m 41 7 Ib ft i01497449 Cutting Edge Screws Tighten SMCS Code 6801 079 BC Illustration 63 900757261 Check all of the bolts for the cutting edges for the correct tightness If necessary tighten the bolts to the proper torque value Refer to Table 15 for the correct torque value Table 15 Torque values for the bolts for the cutting edges Sales Model Bolt Size Torque Value S305 Mi2x175 rm EID 320 M20 x 2 5 iod i b 325 M20 x 2 5 a d ib f 330 M20x25 399 50 Ib f 365 M20x25 Goo 50 Ib f 390 Mento 664 2 74 ib 1 44 Maintenance Section Gear and Bearing Lubricate SEBU7420 08 101695903 Gear and Bearing Lubricate SMCS Code 4055 086 S N CFW1 Up S N CDX1 Up 320 and 325 g00624790 Illustration 64 Note Wipe the fittings before you lubricate the fittings 1 Lubricate fitting 1 There is one fitting The fitting is located on the outside of the housing 2 Rotate the shear for 120 degrees and lubricate fitting 1 3 Repeat Step 2 Grease will be evenly distributed throughout the gear 4 Lubricate the bearing Fitting 2 is located near the rotation motor i01695921 Gear and Bearing Lubricate SMCS Code 4055 086 S N CKY1 Up 340 m EE 90022 o 99292
15. 2 must be welded again 6 Install the guide cutter and adjust the clearance 7 Allow the work tool to cool completely before you use the work tool Guide Surface of the Upper Jaw S N CDX125 Up CFW208 Up CKY182 Up CLE245 Up FDK345 Up On these shears the guide surface of the upper jaw is replaced by a wear plate Reference Refer to Operation and Maintenance Manual Cutters Inspect Replace for more information on replacing the wear plate Build up the Upper Jaw 1 Clean the shear 2 Place the shear in a horizontal position Open the jaw 3 Lock the jaw in an open position Refer to Operation and Maintenance Manual Cutters inspect replace for more information SEBU7420 08 53 Maintenance Section Jaw Repair Illustration 80 901138269 4 Remove the cutting edge group Remove the paint from the surface of the jaw that is needed to be built up 5 Grind the surfaces Use AWS A5 28 96 ER100D G electrode to repair the area Preheat the specific area of repair to a minimum of 150 C 302 F and no higher than 200 C 392 F Illustration 81 901137931 6 Build up original shape Weld in the direction of the grain Use a straightedge to check the surface 7 Cool the weld slowly to room temperature Remove all the debris from the weld 8 Paint the welded area with primer Allow the primer to dry completely Paint the welded area with a fina
16. 58 Maintenance Section Wear Plates Inspect Replace SEBU7420 08 8 Put 155 0695 Thread Lock Compound over the whole threaded length of the new bolt 9 Mount the new bolt in the threaded hole 10 Use appropriate tooling in order to apply a torque of 270 N m 200 Ib ft to the bolt 11 Put a marking on the bolt that has been replaced 12 Remove the cover plug 2 13 Repeat Steps 4 through 11 for all of the bolts on the inner ring Note At two positions of the work tool it is not possible to mount a bolt to the inner ring Note The work tool can be rotated manually in order to access the 34 bolts of the inner ring Use a sufficiently long lever in order to rotate the work tool 102274417 Wear Plates Inspect Replace SMCS Code 6801 040 6801 510 6820 040 6820 510 S N CKY1 Up CLE1 Up FDK1 Up Inspect the Wear Plates 1 Open the jaw of the shear The following procedures describe maintaining the jaw in the open position a In order to hold the shear in the open position install shear lock 1 onto cover 3 The shear lock must be installed behind guide block 2 for the cover Refer to Illustration 94 Refer to Table 26 for the part numbers of the shear locks Table 26 Sales Model Shear Locks 340 200 2885 365 200 2961 390 200 2962 1 2 Illustration 94 900763257 H
17. B must be flush with the wear plate G Hard Surfacing the Wear Tip Illustration 107 g01142065 Template 1 Remove all the debris from the welds Grind surface 5 2 The procedure for the hard surfacing needs the following items e Lincoln Wear Shield ME welding rod e ESAB Wear Arc 5 welding rod e Welding material DIN8555 MF6 55GP e Welding material with chemical composition mentioned in 30 64 Maintenance Section Wear Tip Inspect Replace SEBU7420 08 Table 30 C Mn Si Cr Mo Hardness 76 Hrc 0 5 0 6 0 6 4 5 0 8 08 10 10 65 12 56 61 Preheat the specific service area to 150 C 302 F to 200 C 392 F Weld a closed bed of beads in surface 5 Lay one bead lengthwise next to the previous bead Weld in the direction of the grain Refer to illustration 107 Cool the weld slowly to room temperature Remove all the debris from the welds Use template Z in order to check the surface 5 of the upper jaw C Refer to illustration 107 Place template Z along reference surface 8 until template Z is even with surface 6 of the nose of the upper jaw C If necessary grind the nose of the upper jaw C until the nose of the upper jaw C matches the template Unlock the upper jaw C Refer to Operation and Maintenance Manual Cutters Inspect Replace Carefully close the upper jaw Illustra
18. Cutters inspect replace Hard Surfacing Lower Jaw 1 Clean the shear Place the shear in a horizontal position Open the jaw Lock the jaw in the open position Refer to Operation and Maintenance Manual Cutters inspect replace 2 Remove the cutting edge group Remove paint from the surface of the jaw that needs to be welded Grind surfaces 3 These items are recommended for the hard surfacing of the material e LINCOLN Wearshield ME welding rod e ESAB Wear Arc 5 welding rod e Welding material DIN8555 MF6 55GP e Welding material with the chemical composition mentioned in table 23 4 Apply three single passes that run the length of the shear Weld in the direction of the grain The maximum height of the weld is 3 mm 0 118 inch Illustration 88 g01137256 5 Start the first pass at least 7 mm away from the edge Refer to r illustration 88 The distance between the welds should be between 15 mm 0 59 inch to 25 mm 0 98 inch Refer to s illustration 88 56 Maintenance Section Rotator Head Bolts Check SEBU7420 08 Illustration 89 901137266 6 Stagger the ends of the welds The length of the welds should be offset 50 mm 1 97 inch Refer to t illustration 89 7 The hard surface should end approximately at 150 mm 5 91 inch from the radius Taper the ends of the welds into the base material with marks from grinding going with the grain 8 Cool the weld slowly to room tempe
19. MAINTENANCE INTERVALS Operation and Maintenance Manual Excerpt 2010 Caterpillar CATERPILLAR All Rights Reserved CATERPILLAR ne LT Operation and Maintenance Manual S305 320 325 340 S365 and S390 Demolition and Scrap Shears BRD1 Up S305 CDX1 Up S320 CFW1 Up S325 CKY1 Up S340 CLE1 Up S365 FDK1 Up S390 SAFETY CAT COM 34 Maintenance Section Maintenance Interval Schedule SEBU7420 08 103755907 Maintenance Interval Schedule SMCS Code 6700 When Required Access Cover Remove Inspect 35 Cutting Arm Preload Adjust sssss 42 Jaw S Repair sissies ered ee Reno RE ed 46 Rotator Head Bolts Replace 57 Every 8 Service Hours or Daily Bushings Lubricate ssseeeses 35 Cutters Inspect Replace sssssssse 36 Cutters Inspect Replace ssssssssse 40 Cutting Edge Screws Tighten 43 Gear and Bearing Lubricate 44 Gear and Bearing Lubricate 44 Gear and Bearing Lubricate 45 Gear and Bearing Lubricate 45 Hydraulic Fittings Inspect sssessssse 46 Wear Plates Inspect Replace 58 Wear Tip Inspect Replace
20. a Place template 7 against reference surface 8 of the cutter b Slide template 7 along reference surface 8 until template 7 is even with rear surface 6 of the nose of the upper jaw c If necessary grind the nose of the jaw until the nose of the jaw matches the template d Front plate 9 of the jaw must be even with the front surface of the template If front plate 9 is not even with the front surface of the template the upper jaw must be rewelded L N ox S OCA SOOO aN Illustration 76 g00562487 Front plate 7 If the front plate is worn weld the front plate Weld the front plate in the pattern that is shown in illustration 76 Space the welds at B 50 mm 2 inches intervals Use the welding material DIN8555 MF6 55GP Hard Surfacing of the Shear Jaws S N CKY250 Up CLE350 Up FDK450 Up Personal injury or death can result from fumes gases and ultraviolet rays from the weld arc Welding can cause fumes burn skin and produce ultraviolet rays Keep your head out of the fumes Use ventilation exhaust at the arc or both to keep fumes and gas es from your breathing area Wear eye ear and body protection before working Protect yourself and others read and understand this warning Fumes and gases can be dangerous to your health Ultraviolet rays from the weld arc can injure eyes and burn skin Electric shock can cause death Read and understand the manufacturer s instruc tion
21. ard to the person doing the cutting or welding Do not flame cut or weld on painted areas Buildup of the Wear Tip 1 Clean shear SEBU7420 08 63 Maintenance Section Wear Tip Inspect Replace 2 Place the shear in a horizontal position Open the upper jaw C Lock the upper jaw C in the open position Refer to Operation and Maintenance Manual Cutter Inspect Replace 3 Inspect wear tip B for excessive wear or excessive damage 4 Check wear tip B for cracks Note Replace wear tip B if excessive damage wear or cracks are noticed Refer to Operation and Maintenance Manual Wear Tip Inspect Replace 5 Remove the paint from the surface of the upper jaw C that is needed to be buildup 6 Grind surfaces 7 Use the welding material AWS A5 28 96 ER100S G to repair the area 8 Preheat the specific area to a minimum of 150 C 302 F and no higher than 200 C 392 F Illustration 105 901142044 The side of the shear with the cutting edge 9 Build up original shape Weld in the direction of the grain Refer to illustration 105 Use a straightedge A to check the surface Refer to illustration 105 Note The wear tip B must be flush with cutting edges D Illustration 106 901142055 The side of the shear with the wear plate 10 Repeat step 5 through 9 for the wear plate G side Weld in the direction of the grain refer to illustration 106 Note The wear tip
22. by two cutting edges S N CKY250 Up CLE350 Up FDK450 Up Build up the Lower Jaw Note If a jaw build up is required build up the jaw The Hard surfacing of the jaw should only be performed when the hard surfacing of the jaw is required 1 Clean the shear Place the shear on a horizontal position Rotate the shear 180 2 Open the jaw Lock the jaw in the open position Refer to Operation and Maintenance Manual Cutters inspect replace 3 Remove all components of the cutting edge group Remove paint from the surface of the jaw that needs to be built up Grind the needed surfaces 4 Use the welding material AWS A5 28 96 ER 100S G to repair the area SEBU7420 08 55 Maintenance Section Jaw Repair 5 Preheat the specific service area to 150 C Table 25 302 F to 200 C 392 F Cc Mn Si Cr Mo Hardness Hrc 0 5 0 6 0 6 4 5 0 8 08 59 1 10 65 12 8 61 Illustration 86 901132601 6 In order to build up the original shape weld in the direction of the grain Use a straightedge to check the surface Illustration 87 90113237 7 Cool the weld slowly to room temperature Remove all the debris from the weld Paint the welded area with primer Allow the primer to completely dry Paint the welded area with a final coat of primer 8 Install the cutting edge group Remove the lock jaws Refer to Operation and Maintenance Manual
23. chine Release the hydraulic pressure in the hydraulic system Refer to the Service Manual of the host machine for the proper procedure to release the hydraulic pressure 4 Clean the fittings with a clean rag before you lubricate the fittings Note In order to access the fittings on the pin for the cutting jaw you must remove two caps There is one cap on each side of the pin 5 Lubricate the five grease fittings There are two fittings on the pivot pin for the cylinder 1 There is one fitting on the end of the cylinder 2 There are two fittings on the pin for the cutting jaw 3 36 Maintenance Section Cutters Inspect Replace SEBU7420 08 102236658 Cutters Inspect Replace SMCS Code 6801 040 6801 510 S N BRD1 Up S N CLE1 244 S N FDK1 344 S N CFW1 207 S N CDX1 124 S N CKY1 181 Inspect the Cutters Table 9 Sales Model Shear Locks 305 199 8486 320 200 2959 325 200 2960 340 200 2885 365 200 2961 390 200 2962 1 198 7100 Bar is a part of this group Illustration 46 900778397 S305 Housing Illustration 47 900763257 Hydraulic cylinder for S320 through S390 1 Open the jaw of the shear The following procedures describe maintaining the jaw in the open position a In order to hold the shear in the open position for the S305 install
24. ck the nut 11 Remove nut 2 12 Remove ring 5 48 Maintenance Section Jaw Repair SEBU7420 08 NN 6 KA Illustration 73 g00774837 13 Measure Dimension A Dimension A is the amount of shims that is required 14 Install shims 4 The shims should be even with surface 6 The shims can be a maximum of 0 5 mm 0 02 inch above surface 6 15 Install nut 2 Tighten nut 2 to a torque value of 300 N m 220 Ib ft If necessary turn nut 2 to the next bolt hole 16 Install bolts 1 17 Open the jaw 18 Install the guide blade 19 Carefully close the jaw 20 Open the jaw 21 Measure the clearance between the guide blade and the upper jaw 22 Install the proper amount of shims Install the guide blade 23 Carefully close the jaw 24 Open the jaw and close the jaw Check the clearance between the cutters If necessary adjust the clearance Refer to the Operation and Maintenance Manual Cutter Inspect Replace Hard Surfacing of the Shear Jaws S N BRD1 Up CDX1 Up CFW1 Up CKY1 249 CLE1 349 FDK1 449 Personal injury or death can result from fumes gases and ultraviolet rays from the weld arc Welding can cause fumes burn skin and produce ultraviolet rays Keep your head out
25. dges 6 10 and guide blades 7 again 3 4 Clean all surfaces of the cutting edges and guide blades Grind any burrs on the cutting edge and guide blades 8 Inspect the pockets for the cutting edge and guide blades for any wear of damage If necessary repair the jaw Refer to the Operation and SECTION A A Maintenance Manual Jaw Repair for more information Illustration 58 g01144121 9 Inspect lower jaw 11 for wear If dimension A is greater than 5 mm 0 20 inch lower jaw 11 must be repaired Refer to the Operation and Maintenance Manual Jaw Repair 10 Reinstall bushings 11 cutting edges and guide blade 7 Do not install shims 11 Install bolts and washers Do not tighten Coat the bolts with 5P 3931 Anti Seize Compound Note The cutting edge and guide blades must be in front of the base material in order to reduce the wear of the base material 12 Install shims in the lower jaw and in the upper jaw The shims must equal a minimum of 2 mm 0 08 inch Shims are used in order to adjust the clearance between the cutting edges 13 Coat the bolts with 5P 3931 Anti Seize Compound 14 Tighten the bolts Refer to Table 13 for the correct torque value 4 5 SECTION B B Illustration 59 g01144130 2 Remove bolts 13 and washers 14 from lower jaw 18 42 Maintenance Section Cutting Arm Preload Adjust SEBU7420 08
26. ear in the open position for the S320 through S390 install shear lock 1 onto cover 3 The shear lock must be installed behind guide block 2 for the cover Refer to Illustration 98 Refer to Table 28 for the part numbers of the shear locks Illustration 99 900859809 2 Inspect wear tip 5 for excessive wear or damage Check wear tip 5 for cracks Replace the Wear Tip Illustration 100 900763257 320 through S390 1 Shear lock 2 Guide block 3 Cover 1 Open the jaw of the shear The following procedure describes maintaining the jaw in the open position a In order to hold the shear in the open position for the S320 through S390 install shear lock 1 onto cover 3 The shear lock must be installed behind guide block 2 for the cover Refer to Illustration 100 Refer to Table 28 for the part numbers of the shear locks SEBU7420 08 61 Maintenance Section Wear Tip Inspect Replace a p Illustration 101 900859809 2 In order to prevent damage to cutting edge 4 remove cutting edge 4 from the upper jaw 3 Grind existing wear tip 5 in order to remove wear tip 5 4 After you remove the old wear tip grind the surface of the upper jaw The surface should be clean and free of rust
27. g If any bolts are missing the heads replace all the bolts in the outer ring 4 Remove the cover plug 2 in order to access the rotator head bolts on the inner ring Only one rotator head bolt will be visible at a time 5 Check the rotator head bolts on the inner ring If any bolts are missing the heads replace all the bolts in the inner ring Note The work tool can be rotated manually in order to view all of the rotator head bolts Use a sufficiently long lever in order to rotate the work tool Reference For more information on replacing the rotator head bolts refer to Operation and Maintenance Manual Rotator Head Bolts Replace for the machine that is being serviced 102241379 Rotator Head Bolts Replace SMCS Code 6326 510 BC 1 Position the work tool in an upright position just above the ground 2 Stop the machine engine in order to prevent inadvertent movement of the work tool Note The host machine must be equipped with a boom lowering control valve in order to perform this procedure If the host machine is not equipped with a boom lowering control valve contact your Caterpillar dealer Illustration 92 g01005664 1 Rotator head bolt outer ring 2 Cover plug 3 Repeat Steps 4 through 11 for all of the bolts on the outer ring 4 Remove the bolt 5 Mechanically remove the old sealant 6 Clean the threaded hole 7 Clean the new bolt g01004413 Illustration 93
28. he welds should be between 15 mm 0 59 inch to 25 mm 0 98 inch Refer to y illustration 83 Illustration 84 g01137970 8 Stagger the ends of the weld The length of the welds should be offset by 50 mm 1 97 inch Refer to x illustration 84 The Hard surface should end approximately at 150 mm 5 91 inch from the radius 9 Taper the ends of welds into the base material with grind marks going in the direction of the grain 10 Cool the weld slowly to temperature Remove all the debris from the weld Paint the welded area with primer Allow the primer to completely dry 11 Paint the welded area with a final coat of paint 12 Install the cutting edge group Remove lock jaws Refer to Operation and Maintenance Manual Cutters inspect replace for more information Repair the Lower Jaw S N BRD1 Up CLE1 349 FDK1 449 CFW1 Up CDX1 Up CKY1 249 Tl in dn Sud 3j MQc Illustration 85 g00757515 1 Clean area A of the lower jaw that needs to be repaired Remove any rust 2 Preheat area A of the lower jaw to 150 C 302 F to 200 C 392 F 3 In order to weld the lower jaw use the welding material AWS A5 28 96 ER100S G Weld the inside of the lower jaw until area A that was worn away is present again 4 Grind the welds until the surface of the lower jaw is flat 5 These shears have the guide surface of the lower jaw which is replaced
29. l coat of paint 9 Install the cutting edge group Remove the lock jaws Refer to Operation and Maintenance Cutter inspect replace for more information Hard surfacing the Upper Jaw 1 Clean the shear 2 Place the shear in a horizontal position Open the jaw Lock the jaw in the open position Refer to Operation and Maintenance Cutters inspect replace for more information 3 Remove the cutting edge group Remove the paint from the surface of the jaw that is needed to be built up Grind the surface 4 These items are recommended for the hard surfacing of the material LINCOLN Wearshield ME welding rod e ESAB Wear Arc 5 welding rod e Welding material DIN8555 MF6 55GP e Welding material with the chemical composition mentioned in table 23 Table 24 C Mn Si Cr Mo Hardness 76 Hrc 0 5 0 6 0 6 45 0 8 0 8 1 0 1 0 6 5 1 2 56 61 5 Preheat the specific area of repair to a minimum of 150 C 302 F and no higher than 200 C 392 F Illustration 82 g01137938 6 Apply three single passes along the length of the shear Weld in the direction of the grain The maximum height of the weld is 3 mm 0 12 inch 54 Maintenance Section Jaw Repair SEBU7420 08 Illustration 83 901137942 7 Start the first pass at least 7 mm 0 28 inch away from the edge Refer to z illustration 83 The distance between t
30. n order to hold the shear in the open position for the S305 install 198 7100 Bar through the holes in the frame of the shear Refer to Table 9 for the part number of the shear lock Refer to Illustration 46 for installing the bar Install the bolts and the nuts on both ends of the bar This will prevent the hydraulic cylinder from raising and closing the jaw b In order to hold the shear in the open position for the S320 through S390 install shear lock 1 onto cover 3 The shear lock must be installed behind guide block 2 for the cover Refer to Table 9 for the part numbers of the shear locks Illustration 50 900756935 aa oberg s LNA BA 10 6 A A g00777187 Illustration 51 2 Remove bolts 1 washers 2 and nuts 3 from guide blade 4 Clean the threads of the bolts Remove guide blade 4 and shims 5 Clean the surface of the guide blade and the shims Remove the cutting edges from the upper jaw and the lower jaw 38 Maintenance Section Cutters Inspect Replace SEBU7420 08 7 Measure the amount of shims 5 that are under the cutting edges and guide blade 4 Record the amount of shims Measure the amount of shims 7 that are behind lock bushing 6 Record the amount of shims Cutting edges
31. n the lower jaw Do not install shims 7 15 Coat the bolts with 5P 3931 Anti Seize Compound 16 Install the cutting edges in the upper jaw Install the shims that were removed 17 Coat the bolts with 5P 3931 Anti Seize Compound 18 Install bolts 1 washer 2 and nuts 3 Tighten the bolts and the nuts Refer to Table 10 for the correct torque value Illustration 52 900757515 S N BRD1 UP S N CLE 1 349 S N FDK1 449 S N CFW1 UP S N CDX1 UP S N CKY 1 249 11 Inspect lower jaw 11 for wear If dimension A is greater than 5 mm 0 20 inch lower jaw 11 must be repaired Refer to the Operation and Maintenance Manual Jaw Repair for more information 12 Reinstall guide blade 4 Do not install shims 5 Table 10 Torque values for the bolts for the cutting edges Sales Model Bolt Size Torque Value 305 M12 x 1 75 Gb Cb S320 M20 x 2 5 cue 5 ib S325 M20 x 2 5 pm E I 330 M20 x26 Sos 60 Ib S365 M20 x 2 5 Boe i b 390 M24x3 0 664 74 pf SEBU7420 08 39 Maintenance Section Cutters Inspect Replace 24 Measure the clearance between the cutting edge 8 of the upper jaw and cutting edge 9 of the lower jaw The clearance between the two knives 1 2 3 must be less than 0 5 mm 0 02 inch Use the shims to adjust the amount of clearance If the i ur amount of shims 10 under front knife 8 of the upper jaw and f
32. n with the front surface of the template the upper jaw must be rewelded 7 If the end wear plates are worn replace end wear plates with new end wear plates Refer to Operation and Maintenance Manual End Wear Plates Inspect Replace for the proper procedure Note New end wear plate contains cracks due to the hardness of the material Guide Surface of the Upper Jaw S N BRD1 Up CDX1 124 CFW1 207 CKY1 181 CLE1 244 FDK1 344 Illustration 79 900774841 1 Cutter in upper jaw 2 Guide surface on upper jaw 3 Template A Reference surface of template B Reference surface of template L 1 Grind guide surface 2 of the upper jaw The surface should be clean and free of rust 2 Preheat guide surface 2 of the upper jaw to 150 C 302 F to 200 C 392 F 3 In order to weld the jaw use welding material AWS A5 28 96 ER100S G Weld guide surface 2 4 Grind the welded area to a smooth finish 5 Use template 3 in order to check guide surface 2 of the upper jaw a Hold reference surface A of the template against cutter 1 b Slide template 3 along cutter 1 until reference surface B contacts the upper jaw c Measure clearance C Measure the clearance along cutter 1 The clearance must be even along cutter 1 The clearance must not be more than 1 mm 0 04 inch If the clearance is greater than 1 mm 0 04 inch guide surface
33. r to Illustration 104 Refer to Table 29 for the height of each weld for each shear 10 Grind the surface flat with the shape of the upper jaw 11 Once the jaw has cooled install cutting edge 4 Procedure for the Buildup and Hard Surfacing of the Wear Tip S N CDX1 Up CFW1 Up CKY1 Up CLE1 Up FDK1 Up Personal injury or death can result from fumes gases and ultraviolet rays from the weld arc Welding can cause fumes burn skin and produce ultraviolet rays Keep your head out of the fumes Use ventilation exhaust at the arc or both to keep fumes and gas es from your breathing area Wear eye ear and body protection before working Protect yourself and others read and understand this warning Fumes and gases can be dangerous to your health Ultraviolet rays from the weld arc can injure eyes and burn skin Electric shock can cause death Read and understand the manufacturer s instruc tions and your employer s safety practices Do not touch live electrical parts See American National Standard Z49 1 Safety in Welding and Cutting published by the American Welding Society American Welding Society 2501 N W 7th Street Miami Florida 33125 See OSHA Safety and Health Standards 29 CFR 1910 available from U S Department of Labor U S Department of Labor Washington D C 20210 Personal injury can result from flame cutting or welding on painted areas The effect of gasses from burned paint is a haz
34. rature 9 Remove all the debris from the weld Paint the welded area with primer Allow the primer to completely dry Paint the welded area with a final coat of paint 10 Install the cutting edge group Remove the lock jaws Refer to Operation and Maintenance Manual Cutters inspect replace 102241319 Rotator Head Bolts Check SMCS Code 6326 535 BC 1 Position the work tool in an upright position just above the ground 2 Stop the machine engine in order to prevent inadvertent movement of the work tool Note The host machine must be equipped with a boom lowering control valve in order to perform this procedure If the host machine is not equipped with a boom lowering control valve contact your Caterpillar dealer g01005368 Illustration 90 1 Rotator head bolt outer ring 2 Cover plug 3 Check the static inspection torque of all 36 bolts 1 in the outer ring Use appropriate tooling in order to apply a torque of 270 N m 200 Ib ft to the bolts The bolt should not move before a torque of 270 N m 200 Ib ft is reached If the bolt moves then the sealant has been broken and the bolt has been overstressed All bolts in the outer ring must then be replaced Reference For more information on replacing the rotator head bolts refer to Operation and Maintenance Manual Rotator Head Bolts Replace for the work tool that is being serviced 4 Remove the cover plug 2 5 Check the static inspec
35. ront knife 9 of the lower jaw are changed then the amount of shims 7 behind C lock bushing 6 should be changed Refer to Illustration 51and 54 Note Refer to Table 11 for a guide to the clearance between the cutters Illustration 53 900763257 FERE Maximum Clearances Between the Cutters 19 Remove shear lock 1 from the cover 3 Thickness o Guitar Guide Cutter 20 Start the host machine Less tham e ni 05mm mcm 0 23 inch 0 02 inch i 9 Greater than Less than 2mm Less than 5 mm 12 8 b 6 mm 0 23 inch 0 08 inch 0 20 inch 11 wd los 25 Remove the cutting edges and the guide blade 4 B 26 Install the shims that are needed for the proper clearance E 27 Install the cutting edges the shims and the bolts 28 Coat the bolts with 5P 3931 Anti Seize Compound 900757517 aor od 29 Tighten the bolts Refer to Table 10 for the correct 21 Slowly close the upper jaw When the surface of torque value the cutters are close stop the jaw 22 Inspect the upper jaw for wear If the dimension B is greater than10 mm 0 4 inch the upper jaw 12 must be repaired Refer to the Operation and Maintenance Manual Jaw Repair 23 Measure the clearance between the surface of the upper jaw 12 and the guide blade 4 The clearance between the surface of the upper jaw 12 and
36. rt numbers of the shear locks Illustration 78 g00777348 Upper jaw Surface of the upper jaw Guide surface of the upper jaw Template Reference surface 4 5 6 7 8 9 End wear plate 2 Grind surface 5 of the upper jaw The surface should be clean and free of rust 3 Preheat surface 5 of the nose of the upper jaw to 150 C 302 F to 200 C 392 F 4 These items are recommended for the hard surfacing of the material e LINCOLN Wearshield ME welding rod e ESAB Wear Arc 5 welding rod e Welding material DIN8555 MF6 55GP Welding material with the chemical composition mentioned in table 23 Table 23 Cc Mn Si Cr Mo Hardness 76 Hrc 0 5 0 6 0 6 45 0 8 0 8 1 0 10 65 42 56 61 5 Weld a closed bed of beads on the nose of the upper jaw Lay one bead lengthwise next to the previous bead 6 Use template 7 in order to check guide surface 6 of the upper jaw 52 Maintenance Section Jaw Repair SEBU7420 08 a Place template 7 against reference surface 8 of the cutter b Slide template 7 along reference surface 8 until template 7 is even with rear surface 6 of the nose of the upper jaw c If necessary grind the nose of the jaw until the nose of the jaw matches the template d End wear plate 9 of the jaw must be even with the front surface of the template If the end wear plate 9 is not eve
37. s and your employer s safety practices Do not touch live electrical parts See American National Standard 249 1 Safety in Welding and Cutting published by the American Welding Society American Welding Society 2501 N W 7th Street Miami Florida 33125 See OSHA Safety and Health Standards 29 CFR 1910 available from U S Department of Labor U S Department of Labor Washington D C 20210 NOTICE Before carrying out arc welding on the machine or on any equipment attached to the machine disconnect all power and ground leads from the batteries in order to avoid possible damage to electronic components Personal injury can result from flame cutting or welding on painted areas The effect of gasses from burned paint is a hazard to the person doing the cutting or welding Do not flame cut or weld on painted areas SEBU7420 08 51 Maintenance Section Jaw Repair Table 22 Sales Model Part Number of Shear Lock 1 S305 199 8486 320 200 2959 325 200 2960 340 200 2885 365 200 2961 390 200 2962 1 2 Illustration 77 g00763257 1 Open the jaw of the shear In order to hold the shear in the open position install shear lock 1 onto cover 3 The shear lock must be installed behind guide block 2 for the cover Refer to Table 22 for the pa
38. st replace the cutter 4 If the cutter is damaged or the cutter is cracked you must replace the cutter Replace the Cutters Illustration 56 900763257 Hydraulic cylinder for S320 through S390 1 Open the jaw of the shear The following procedures describe maintaining the jaw in the open position a In order to hold the shear in the open position for the S320 through S390 install shear lock 1 onto cover 3 The shear lock must be installed behind guide block 2 for the cover Refer to Table 12 for the part numbers of the shear locks Illustration 57 g01144127 SEBU7420 08 41 Maintenance Section Cutters Inspect Replace 3 Remove the guide blade 7 the bushings 11 and the shims 4 5 from the lower jaw 18 4 Remove the bolts 15 16 the washers 14 the cutting edges 6 10 the guide blade 7 the shims 3 4 5 9 and the bushings 11 from the jaws 5 Measure the amount of shims 3 4 5 9 that are under the cutting edges and guide blades 7 Record the amount of shims Cutting edges 6 10 at the front of the jaws and guide blades 7 on the shear jaws are equipped with a bushing 11 ee Oe EZ 6 6 Clean all parts 7 Check cutting edges 6 10 and guide blades 7 If there is an unused edge you can use the 11 cutting e
39. tion 108 901142280 checking the fit 9 Check the fit H of the wear tip B into the shear housing K Grind the surface if necessary Lock the upper jaw C in the open position Refer to Operation and Maintenance Manual Cutters Inspect Replace 10 Paint the welded area with primer Allow the primer to completely dry Paint the welded area with a final coat of paint Remove the lock on the upper jaw C Refer to Operations and Maintenance Manual Cutters Inspect Replace
40. tion torque of all 34 bolts in the inner ring Use appropriate tooling in order to apply a torque of 270 N m 200 Ib ft to the bolts Note The work tool can be placed in two positions in which it is not possible to mount a bolt to the inner ring Note The work tool can be rotated manually in order to access the 34 bolts of the inner ring Use a sufficiently long lever in order to rotate the work tool The bolt should not move before a torque of 270 N m 200 Ib ft is reached If the bolt moves then the sealant has been broken and the bolt has been overstressed All bolts in the inner ring must then be replaced Reference For more information on replacing the rotator head bolts refer to Operation and Maintenance Manual Rotator Head Bolts Replace for the machine that is being serviced 6 Replace the cover plug SEBU7420 08 57 Maintenance Section Rotator Head Bolts Inspect 102241336 Rotator Head Bolts Inspect SMCS Code 5060 6326 040 BC 6326 1 Position the work tool in an upright position just above the ground 2 Stop the machine engine in order to prevent inadvertent movement of the work tool Note The host machine must be equipped with a boom lowering control valve in order to perform this procedure If the host machine is not equipped with a boom lowering control valve contact your Caterpillar dealer Illustration 91 g01004467 3 Check the rotator head bolts 1 on the outer rin
41. ydraulic cylinder for S320 through S390 1 Shear lock 2 Guide block 3 Cover Illustration 95 901139129 2 Inspect wear plates K L M for excessive wear or damage Check wear plates for cracks SEBU7420 08 59 Maintenance Section Wear Plates Inspect Replace Replace the Wear Plates Illustration 96 900763257 320 through S390 1 Shear lock 2 Guide block 3 Cover 1 Open the jaw of the shear The following procedure describes maintaining the jaw in the open position a In order to hold the shear in the open position install shear lock 1 onto cover 3 The shear lock must be installed behind guide block 2 for the cover Refer to Illustration 96 Refer to Table 26 for the part numbers of the shear locks Grind the existing wear plates K L M in order to remove the wear plates Grind the surface of the end plate Z The surface should be clean and free of rust 4 Remove the paint from the end plate Z Table 27 SHEAR S340 S365 S390 A mm 35 70 150 B mm 20 30 50 C mm 20 30 D mm 150 E mm 35 H mm 25 Wear Plate 235 0916 235 0916 K 2x 2x Wear Plate 234 5067 234 5067 L 1x 3x Wear Plate 235 0915 m 2x Illustration 97 5 901139184 Tack weld the new wear plates K L M to
42. ydraulic fittings for damage or for leaks You must repair all of the leaks or damage before you use the work tool If the work tool is not connected to a host machine the hydraulic lines must be capped or plugged You must replace any damaged components before you use the work tool Consult your Caterpillar dealer for replacement parts or for more information 102236363 Jaw Repair SMCS Code 6349 020 The shear jaw is adjusted in order to compensate for the wear cutter during normal operation Note Adjustment of the shear jaw should only be performed after the cutters have been inspected and changed Adjust the Clearance Between the Cutters Principle of Adjustment After removing the hub nuts and shims any clearance between the individual parts of the pivot point is removed by the use of the hub nut and a steel ring on the drop side of the shear The hub nut on the side of the shear with the cutter then pulls the cutters on the upper jaw against the cutters on the lower jaw by moving the jaw assembly Once the jaw is in place the jaw is retained in position by shims that are placed on the drop side of the shear SEBU7420 08 47 Maintenance Section Jaw Repair Table 17 Maximum Clearances Between the Cutters Thickness of material to cut Cutter Guide Cutter 7 025 6 002 inch mm 0 04 inch Greater than Less than 2 mm Less than 5 mm 6 mm 0 23
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