PUMP GP-FUEL INJECTION 9N3328 - Caterpillar

Start By:a. remove engine, transmission and transfer gearsb. separation of transmission from engine 1. Put transmission assembly in position on tool (A).2. Disconnect five wire connectors (2) from the transmission control valve body.3. Remove wire clamp (3) and remove wiring harness (4) from the transmission control valve body.4. Remove seventeen hex head bolts (5) that hold the transmission control body to the transmission. Remove transmission control valve body (1) from the transmission. Install tool (B) over the control valve body. 5. Remove allen head bolts (7) and then remove dump valve (6) from the transmission control valve body. 6. Remove manifold plate (9) and two dowels (8) from the control valve body if necessary. 7. Remove seal (10) and O-ring seal (11) from the dump valve manifold. Inspect the seals for damage. 8. Remove rubber seal (12) from the back side of the dump valve. Inspect the seal for damage. 9. Turn dump valve (6) over. Remove plugs (13) and (16). Inspect the O-ring seals on the plugs for damage. Remove spring (15) and valve spool (14) from the valve body.10. Remove the plugs (17) and (24). Inspect the O-ring seals on the plugs for damage. Remove spring (23), piston (22) and valve spool (20) from the valve body.11. Remove plug (19) and inspect the O-ring seals. Remove screen plug (21) from valve spool (20).12. Remove plug (18) and inspect the O-ring seal. 13. Remove allen head bolts (25) and (26) to separate manifold (28) from valve body (27). 14. Remove spacer plate (29) from manifold (28). 15. Remove and inspect seal (30). Remove two dowels (31) from manifold (28). 16. Turn manifold (26) over and remove seal (32).17. Remove retainer ring (33) and then remove flow valve (34). 18. Turn valve body (27) over. Remove seal (35), retainer (36) and spring (37) from the backside of the valve body (27). 19. Remove plugs (46) and remove valve spools (47) and springs (39). Remove slugs (48) and slug (40).20. Remove plugs (45) and remove springs (44) and slugs (42). Remove selector valve spool (43) and valve spools (41) from the valve body.21. Remove solenoid valve assemblies (38) and (49) from the valve body. 22. Remove ball, seat and spring assembly (54) from slug (40). Remove retainer ring (50), spacer (55) and spool (56) from valve spool (43). Remove screen plug (51) from spool (56). Remove slug (52) from spool (43). Remove slug (53) from spool (43). The following steps are for the assembly of the transmission control valve. 23. Install slug (53) and slug (52) in spool (43). Install screen plug (51) in spool (56). Install spool (56) spacer (55) and retainer ring (50) in valve spool (43). 24. Install solenoid valve assemblies (38) and (49) in valve body (27). Tighten the solenoid assemblies to a torque of 50 5 N m (37 4 lb ft.)25. Install valve spools (41) selector valve spool (43)