VALVE ASSEM. 9S6979 - Caterpillar

13. Remove plug (19) and the spring from the housing. 14. When plug (19) is removed, latch (20) can be removed from the bottom side of the housing.15. Remove the dowel, two springs and slide (21) from the housing. 16. Remove carrier assembly (22). 17. Remove adjusting screw (23), the spring and nut from the carrier. 18. Remove screw (24), weight (25) and the pin from the carrier. 19. Use tool (A) to remove snap ring (26). Remove the washer and gear (27) from the dowel.20. Remove bushing (28) from the gear.
The shaft can fall out of the housing when dowel (29) is removed.
21. Remove dowel (29) and the gear from the shaft assembly. 22. Remove shaft assembly (30) from the housing. 23. Loosen setscrew (31). Remove gear (32), the key and washer from the shaft. 24. Remove bearings (33) and (34) from the top of the housing.25. Remove bearing (35) from the bottom of the housing. Assemble Safety Shutoff Control
1. Clean and inspect all parts before assembly. Put clean oil on all bearings, gears and seals during assembly. 2. Use tooling (A) to install the bearing in the bottom of housing (1). Install the bearing so it is even with the bottom surface of the housing. 3. Use tooling (A) to install bearing (2) in the top of the housing so it is even with the top surface of the housing. Use tooling (A) to install bearing (3) in the housing so the shoulder of the bearing is against the top surface of the housing. 4. Install the washer, key and gear (5) on the shaft as shown. Install setscrew (4) and tighten just enough to hold the gear in place. 5. Install shaft (6) with the washer in the housing as shown. 6. Install gear (7) on the shaft with the hole in the gear in alignment with the dowel hole in the shaft. Install the dowel that holds the gear on the shaft. Move the dowel to the center of the gear and use a hammer and punch to move metal (stake) both sides of the gear to hold the dowel in place. 7. Use tooling (B) as shown to measure the end play of shaft (6). The end play must be .010 .005 in. (0.25 0.13 mm). To change the end play loosen the setscrew in the gear on the other end of shaft (6) and move the gear on the shaft. When the end play is correct, tighten the setscrew and use a hammer and punch to move the metal (stake) four places around the setscrew to hold the setscrew in place. 8. Use tooling (A) and a press to install the bushing in gear (8). Install the bushing so dimension "X" is .031 in. (0.79 mm). Dimension "X" is the distance the bushing extends above the surface of the smaller gear.9. If a replacement of the dowel for gear (8) is necessary, install the new dowel so it extends .88