PUMP GP-PISTON 3849434 - Caterpillar

24. Remove the covers and shims from each side of the body. Keep the shims with their respective cover. Remove the swashplate from the body.25. Put pistons (19) in position on the plate in the swashplate in their correct sequence. Install retraction plate (20) over the pistons. Later model pumps use self-locking bolts and washers to hold the shims and retraction bearings in position. Use the old bolts in Step 26. Install new bolts after clearance has been checked in Step 3. Tighten self-locking bolts to a torque of 111 9 lb.in. (12.5 1.0 N m).26. Put the original amount of shims and retraction bearings (21) in position on the swashplate. Install the locks and bolts (22). Tighten bolts (22) to a torque of 75 10 lb.in. (8.4 1 N m).27. Measure the clearance between the piston slippers and plate (8) with