VALVE GP-PUMP CONTROL 1559146 - Caterpillar

Disassembly Procedure
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     8H-0663     Bearing Puller Gp     1    Start By:
Remove the piston motor.
Illustration 1 g01071502
Remove bolts (1) and end cap (2) .
Illustration 2 g00826263
Remove valve plate (3), gasket (4), needle bearing (5), and pin (6) from the end cap.
Illustration 3 g00826265
Position housing (7) on the side and remove cylinder block assembly (8) .
Illustration 4 g00826267
Use the following procedure in order to disassemble cylinder block assembly (8) .
Remove pistons (9) and slipper retainer (10) from cylinder block (11) .
Illustration 5 g01071577
Remove guide (14), thrust washer (15), pins (12), and retainer (13) from cylinder block (11) .
Illustration 6 g01071590
Illustration 7 g01071591
Possible injury can result when removing the retaining ring and spring.Spring force will be released when the retaining ring is removed.Be prepared to hold the cylinder assembly as the retaining ring is removed.
Position cylinder block (11) in a suitable press. Install a suitable drive plate of the same size as washer (16). Put slight compression on washer (16) with the press. Remove retaining ring (17) and slowly release the spring compression.
Remove washer (16), spring (19), and washer (18) from cylinder block (11) .
Illustration 8 g01071605
Remove swashplate (20) from housing (7) and the shaft.
Illustration 9 g01071519
Remove retaining ring (25). Remove washer (26) and lip seal (27) from housing (7). Remove retaining ring (28) .
Remove shaft (21) from housing (7) .
Remove retaining ring (24) from shaft (21) .
Use Tooling (A) and a suitable press in order to remove ball bearing (23) from shaft (21). Remove retaining ring (22) from shaft (21) .