PUMP GP-PISTON & GEAR 1710492 - Caterpillar

start by: a) remove pistons1. Drain the coolant from the cooling system.2. Put covers on the crankshaft journals to keep foreign material away. 3. Pull the cylinder liner (1) from the cylinder block with tooling (A). Remove tooling (A) and the cylinder liner.Install Cylinder Liners
1. Clean the cylinder liners and bores in the cylinder block.2. Install the liners in the cylinder block without the seals and bands. 3. Install tooling (A) and tighten nuts (1) to a torque of 50 lb.ft. (67.8 N m).4. Check the liner projection with tool group (B) at four locations around the cylinder liner. The difference between the four measurements must not be more than .001 in. (0.03 mm).5. The liner projection must be .0060 .0028 in. (0.152 0.071 mm). The measurements between the liners next to each other under each cylinder head must not be more than .001 in. (0.03 mm) difference. Turning the liner in the bore can make a difference in the liner projection.
TYPICAL EXAMPLE6. If the liner projection is not .0060 .0028 in. (0.152 0.071 mm) check the thickness of the liner flange (2) and the depth of the liner bore (3) in cylinder block (4). The thickness of the liner flange must be .5050 .0008 in. (12.83 0.02 mm). The depth of the liner bore must be .498 to .500 in. (12.65 to 12.70 mm). If the liner bore is worn and the measurements are not correct, the liner bore can be corrected with a counterboring tool. See SPECIAL INSTRUCTION FORM FM055228.7. Put a mark on the cylinder liners and the cylinder block so the liners can be installed in the same position in the cylinder block. 8. Install new seals (5) on the cylinder liner. Put liquid soap on the seals and the bores in the cylinder block. 9. Put clean diesel fuel on band (6) and install it on the liner as shown. Put clean SAE 30 oil on the liner and install it in the cylinder block with tool group (C).
The liners must be installed in the cylinder block immediately after band (6) is installed. Make sure the marks on the liners and the cylinder block are in alignment when the liners are installed.
end by: a) install pistons