COOLER GP-CEI 5185918 - Caterpillar

Washers (30) and (32) are different in size. Put identification marks on the washers so they can be installed in their original location in the cylinder block.
18. Remove washer (30), spring (31) and washer (32) from the cylinder block. 19. Put an identification mark on valve plate (34) as to its location in the housing and locating pin (33). Remove valve plate (34) from the housing.20. If necessary, remove locating pin (33) from the housing. Needle bearing (35) will be damaged when it is removed from the housing.21. Remove needle bearing (35) from the housing.
The inside shape of servo piston (36) is different at each end. Note the way the servo piston is installed in the main housing so it can be reinstalled in its original position.
22. Remove servo piston (36) from housing (22). 23. Remove bearing rings (37) from the inner grooves of the servo piston. Remove piston rings (38) and the two O-ring seals from the outer grooves of the servo piston. Check the bearing rings, the piston rings and the O-ring seals for damage or wear and replace if necessary. 24. Remove plug (46), spring (45) and poppet (43) from the housing. Remove the shims and the O-ring seal from plug (46). Check the O-ring seal for damage or wear and replace if necessary.25. Remove plug (41) and spring (44) from both sides of the housing. Remove the O-ring seal from each plug (41). Check the O-ring seal for damage or wear and replace if necessary.26. Remove spring guide (40), valve spool (39) and spring guide (42) from the housing.Assemble Axle Propel Motor
1. Be sure all parts of the axle propel motor are clean and free of dirt and debris prior to assembly. 2. Install spring guides (40) and (42) on valve spool (39). Install the valve spool in housing (22).3. Install the O-ring seal on both plugs (41). Install both springs (44) and both plugs (41) in the housing.4. Install the O-ring seal on plug (46). Install the shims in the plug. Install poppet (43), spring (45) and plug (46) in the housing. 5. Install bearing rings (37) in the grooves of servo piston (38). Install the two O-ring seals in the outer grooves of the servo piston. Install one piston ring (38) over the O-ring seal.6. Put clean oil on the bearing rings and piston ring. Carefully slide servo piston (36) into the servo bore of housing (22) as shown.
Do not slide the servo piston through the housing any farther than necessary to install the second piston ring on the servo piston. Sharp edges on the servo bore, inside the pump housing, can damage the first piston ring. Do not damage the bearing ring when sliding the servo piston back into the pump housing.
7. Slide the servo piston through the housing until the piston ring groove (without a piston ring) is just exposed. Install the remaining piston ring (38) in the groove of the servo piston. Put clean oil on the piston ring