DRIVE GP-ACCESSORY 2538823 - Caterpillar

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.
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 (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.
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.
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.
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.
Illustration 7 g00757515
(S/N: BRD1-UP)(S/N: CLE1-349)(S/N: FDK1-449)(S/N: CFW1-UP)(S/N: CDX1-UP)(S/N: CKY1-249)
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.
Reinstall guide blade (4). Do not install shims (5) .
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.
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 in the lower jaw. Do not install shims (7) .
Coat the bolts with 5P-3931 Anti-Seize Compound .
Install the cutting edges in the upper jaw. Install the shims that were removed.
Coat the bolts with 5P-3931 Anti-Seize Compound .
Install bolts (1), washer (2), and nuts (3). Tighten the bolts and the nuts. Refer to Table 2 for the correct torque value.
Table 2
Torque values for the bolts for the cutting edges    
Sales Model    Bolt Size    Torque Value    
S305     M12 x 1.75    
105 20 N m (75 15 lb ft)    
S320     M20