SENSOR GP-ENGINE 3678642 - Caterpillar

9. Remove pin (18), spring and plunger from control lever (14). 10. Remove bearings (19) and two seals (20) from governor housing (13). 11. Remove seat (21), spring washer (22), flat washer (24), spring washer (23) and spring (25). 12. Remove washer (27) from governor bolt (26).13. Remove ring (28) from seat (29). 14. Remove dowel (30) from seat (29). Remove seat (29) and governor bolt (26) as a unit. Remove bolt (26) from seat (29). 15. Remove washer (31), spring (32), washer (33) and sleeve (inset) (34) from the servo piston valve. 16. Remove ring (38), large race (37), bearing (35) and small race (36) from sleeve (34). 17. Remove lock (40) from flyweight assembly (39). Remove flyweight assembly (40). 18. Bend the locks away from bolts (41) and remove bolts (41).19. Remove bracket (42) and the servo piston assembly as a unit. 20. Remove piston (44) from pin (43). Remove pin (43) from bracket (42). 21. Remove sleeve (45) and valve (46) from piston (44). Remove O-ring seal (47) from sleeve (45). 22. Remove shaft (48) from bracket (42) with a hammer and punch.23. Remove lever (49) from bracket (42). 24. Hit (tap) lightly on cylinder (50) to remove it from the governor plate. 25. Remove O-ring seals (51) from cylinder (50). 26. Remove spiral ring (53), and then remove dowel (52) behind the spiral ring. 27. Remove drive assembly (54) and stop (55) from drive gear (56). 28. Turn the governor plate over and remove snap ring (57) from drive gear (56) with tool (B).29. Remove drive gear (56) from the governor plate. 30. If a replacement is needed, remove dowels (59), (60) and (61).31. Remove bearing (58) from the governor plate with tooling (A).Assemble Governor
1. If a replacement of the dowels in the governor plate is necessary, see the illustration for correct installation dimensions. 2. Install bearing (1) for drive gear (2) in governor plate (3) with tooling (A) until it is 0.15 0.25 mm (.020 .010 in.) below the top surface of the governor plate. 3. Put a small amount of clean engine oil on the inside diameter of bearing (1). Install drive gear (2) in governor plate (3). 4. Turn governor plate (3) over. Install snap ring (4) that holds drive gear (2) in place with tool (B). 5. Install O-ring seals (6) on cylinder (5). 6. Put a small amount of clean engine oil on the O-ring seals on cylinder (5). Install cylinder (5) in the governor plate with the notch in the cylinder in alignment with the bolt hole in the governor plate as shown.7. Install the O-ring seal on sleeve (9).8. Put a small amount of clean engine oil on piston (7), sleeve (9) and valve (8). Install sleeve (9) on piston (7) and valve (8) in piston (7) as shown.9. Install the servo piston assembly in cylinder (5). Valve (8), sleeve (9) and piston (7) are parts of the servo piston assembly. 10. Put lever (11)