DOOR AS-ACCESS 2738959 - Caterpillar

8. Remove barrel assembly (19).9. Put identification on the pistons and by the openings in the barrel so the pistons will be installed in their original cylinders. 10. Remove pistons (22) from barrel (23).11. Remove retraction plate (21) and pivot (20) from barrel (23).
There is spring force behind snap ring (29).
12. Use a press and tooling (B) to put spring (27) in compression. Use tooling (A) to remove snap ring (29). Slowly remove the force from the spring.13. Remove spacer (28), spring (27), spacer (26), pins (25) and pin keeper (24) from barrel (23). 14. Remove snap ring (30) from the pump housing with tool (A). 15. Use a soft hammer to remove shaft (31) from the pump housing. Remove the seal and washer with the shaft. 16. Remove snap ring (35) from shaft (31) with tool (C). Remove bearing race (34), bearing (36) and bearing race (33) from shaft (31). Remove snap ring (32) with tool (C). 17. Remove snap rings (37) and (39) from each side of the pump housing with tool (A). 18. Remove covers (38) and (40) from each side of the pump housing. Remove the O-ring seals from each side of the pump housing. 19. Remove races (42) and bearings (41) from each side of the pump housing. 20. Remove swashplate (43) from the pump housing. 21. Remove spring pin (44) and button (45) from swashplate (43). 22. Remove spring guide (48) and spring (47) from the pump housing. 23. Use tooling (B) and remove bearing (46) from the pump housing.Assemble Piston Hydraulic Pump
See GUIDELINE FOR REUSABLE PARTS, PISTON PUMPS AND MOTORS, Form No. SEBF8032.1. Make sure all of the parts of the piston hydraulic pump are clean. Put clean oil on all of the parts of the piston hydraulic pump. Inspect all O-ring seals for damage and make replacements if needed. 2. Install the bearing in the pump housing with tooling (A). The bearing must be installed with the end that has numbers on it toward the outside of the pump and .078 in. (1.98 mm) below the seat of the counterbore. 3. Put spring (1) and spring guide (2) in position in the pump housing. 4. Put button (5) in position on swashplate (3). Install spring pin (4) that holds the button in place with a punch and hammer. 5. Put swashplate (3) in position in the pump housing. 6. Install bearings (6) and races (7) in each side of the pump housing. 7. Put O-ring seals (8) and covers (9) in position on each side of the pump housing. 8. Install snap ring (10) with tool (B) in each side of the pump housing. 9. Use tool (C) and install snap ring (12) on shaft (11).10. Put race (13), bearing (16) and race (14) in position on shaft (11).11. Use tool (C) and install snap ring (15) on shaft (11). 12. Put shaft (11) in position in the pump housing. 13. Install washer (17) and seal (18) in the