GUIDE AS 2056150 - Caterpillar

24. Lift the compensating actuating piston assembly (40) up and install cotter pin in hole in the link. 25. Turn the assembly on its side and remove five bolts (41). Use a soft hammer to remove the control assembly from the base. 26. Remove spring assembly (43), pilot valve bushing (42) and pilot valve plunger.
Actuating piston assembly (40) is under spring tension.
27. Pull actuating piston assembly (40) and remove cotter pin (45). Remove the actuating piston assembly (40) and spring (44) from the control housing.28. Remove cotter pin (47) and ball head drive gear (46) from assembly. 29. Remove pump drive gear assembly (48). 30. Remove cotter pin (49). 31. Remove lever (50) from spool. Remove spool (51) from housing. 32. Remove two screws (53) and lever assembly (52) from housing. 33. Remove piston rod end (54) and locknut (55) from the receiving piston (56). 34. Remove piston (56), bushing (58) and springs (57) from the housing assembly. 35. Remove seat (59) from housing assembly with tool (A). 36. Remove wire, bolts (61) and bearing retainer (60). 37. Remove drive shaft and bearing assembly (62) from base housing with a soft hammer.Assemble Governor
1. Install the drive shaft and bearing assembly (1) in the base plate housing. 2. Install retainer plate (2) and three screws. There is a 1/8" (3.2 mm) space between the retainer and the housing. Install wire in the screw heads. 3. Install seat in the control housing with a press and tool (A) until the seat is even with the housing land. See location (3).
Inspect all pistons and shafts for damage and repair as necessary. Put lubricant on components before assembly.
4. Install springs (7), piston (8), bushing (6), locknut (5) and piston rod end (4). 5. Put lever assembly (9) in position and install two screws to hold it in place. 6. Put spool (11) in housing and install lever (10) on spool. Install cotter pin to hold lever in position. 7. Install pump drive gear assembly (12). 8. Install ball head drive gear (13) and cotter pin on the pump drive gear. 9. Install spring (15) and actuating piston assembly (14) in the control housing. Install a cotter pin in the piston link to hold assembly in position until the governor base is installed. 10. Install pilot valve bushing (16), pilot valve plunger (17) and spring assembly (18) in the control housing. 11. Turn drive shaft (19) to make an alignment of the drive shaft lug with the slot (opening) in the pilot valve bushing (16).12. Install governor base (20) on the control assembly. Install five screws. The cotter pin in the actuating piston assembly can now be removed. 13. Install spring (22) and rod and pin assembly (21) in ball head (23). Install bearing (24) and nut (25). Count the number of turns to remove nut from disassembly section. 14. Install ball head assembly (26) in the control assembly. 15. Put floating lever (27) in the rod end pin (28). Push piston rod