VALVE GP-CONTROL 3693670 - Caterpillar

Screw and washer (3) is hidden behind the axle.2. Remove screw and washer (3) and input gear (4). 3. Mark, disconnect and cap four hose assemblies (5).4. Remove four screws (6) and separate and remove the axel propel motor from the engine. Install in reverse order.Disassemble & Assemble Axle Propel Motor
Start By:a. remove axle propel pump1. Drain any oil remaining in the motor. Clean the outside of the motor thoroughly. 2. Put tape around the splined drive shaft to prevent damage the the drive shaft or seals during disassembly of the axle propel pump. For pumps with key (1) in the shaft, remove the key. 3. Tap cover (15) with a plastic hammer to release some of the pressure against snap ring (7). Using tool (A), remove snap ring (7).4. Using two screw drivers, remove front cover (15). Remove O-ring seal (16) and shims (20). Pump drive shaft seal (17) will be destroyed when removed from front cover (15).5. Remove seal (17) from the front cover.6. Turn the motor around. Put alignment marks on connection plate (5) and housing (3) for proper alignment at assembly.7. Remove six bolts (6) and the washers.8. Rotate rear cover plate (5) on the locating pin and remove it from the motor housing. Note the location of the locating pin and the locating pin hole.9. Remove O-ring seal (4) from the motor housing. 10. Remove control plate (26) from the motor housing. Note the condition of the bronze surface on cylinder block (25) and the mating surface of control plate (26).
Typical Example
Use only a puller such as tooling (B) to remove the rotary group. Do not use a slide hammer type puller or damage to the motor may result.
11. Using tooling (B), remove rotary group (2) from housing (3). Make sure the cylinder block does not bind as it is pulled through the motor housing. Remove tooling (B). 12. Place the cylinder block and drive shaft assembly on blocks as illustrated.13. Pull cylinder block (25) from the drive shaft and piston assembly. The drive shaft and piston assembly consists of pistons (23) and (21), spring collar, four spring cups and shims (22), drive shaft (10), baring ring (8), bearing (9), disc (11), retainer plate (12), slotted nut (18) and bearing (19).14. Remove four spring cups, collar and shims (22) from the center bore of cylinder block (25).15. Position each piston (23) perpendicular to retaining plate (12) and remove them by pulling straight out. Repeat for all seven pistons (23). The center pin cannot be removed at this time. Indication of damage to the seven pistons requires