MACHINE AR 4781909 - Caterpillar

Removal Procedure
Start By:
Remove the engine oil pump. Refer to Disassembly and Assembly, "Engine Oil Pump - Remove".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g01081720
Remove bolt (2) and piston cooling jet (1) from each cylinder.Installation Procedure
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 2 g01081720
Position piston cooling jet (1) in the cylinder block. Ensure that piston cooling jet (1) is seated properly. Install bolt (2). Tighten the bolt to a torque of 28 7 N m (21 5 lb ft).End By: Install the engine oil pump. Refer to Disassembly and Assembly, "Engine Oil Pump - Install".