NECK AS-FILLER 6L8649 - Caterpillar

The tractor must be on a hard, level surface before the belt is removed.
1. Raise the front of the tractor approximately 200 mm (8 in) with tooling (C), and position tooling (A) under the front of the tractor. Lower the tractor on tooling (A).2. Raise the rear of the tractor approximately 200 mm (8 in) with tooling (D), and position tooling (B) under the rear of the tractor. Lower the tractor on tooling (B). 3. Slowly, and carefully, loosen fitting (2) on each tension cylinder to vent any pressure trapped in belt tensioner cylinder (1) before completely disconnecting the hose fitting from the belt tensioner cylinder. Disconnect fitting (2) from each belt tensioner cylinder (1). 4. Connect tooling (E) to two tensioner cylinders (1) and to the No. 1 Raise implement quick disconnect coupler at the rear of the machine. If the tractor is not operable, an alternate hydraulic source must be used. Slip hoses (3) over the fittings in the tensioner cylinders to direct the overflow oil down and away when pressurizing the tensioner cylinders.
Do not exceed a maximum pressure of 11,000 kPa (1,600 psi) when pressurizing the belt tensioner cylinder. When pressurizing the belt tensioner cylinders, extend the cylinders only far enough to install lock assemblies (4).
5. Start the engine. Using the implement control lever that corresponds to the implement line coupler, slowly pressurize and extend both tensioner cylinders.6. Position lock assemblies (4) over each cylinder rod and secure with the bolts provided.7. Use the implement control lever to slowly vent the hydraulic pressure from the belt tensioner cylinders. 8. Remove the core from valve (6) to deflate air spring (7). Remove valve (6) from air spring (7).9. Support the bogie suspension and remove four nuts (5). Lower the bogie suspension, and remove air spring (7) from between the arm assemblies. 10. Lift the bogie suspension, and install tooling (G) as shown to support the bogie suspension while the belt is removed. 11. Remove six bolts (8) from each of outer rollers (9) and remove the four rollers. 12. Remove two of the ten bolts (10) and install tooling (H). Remove remaining eight bolts (10). 13. Using tooling (J), remove outboard idler wheel (11). The weight of the idler wheel is 91 kg (200 lb). 14. Remove two of the eighteen bolts (12) and install tooling (F). Remove remaining sixteen bolts (12). 15. Using tooling (J), remove outboard drive wheel (13). The weight of the drive wheel is 129 kg (285 lb.). 16. Install two bolts (10) to secure the inboard idler wheel during the belt removal. 17. Install two bolts (12) to secure the inboard drive wheel during the belt removal. 18. Using tooling (J), remove the belt. The weight of the belt is 450 kg (990 lb). If both belts are to be removed, repeat Steps 8 through 18 on the opposite side of the tractor. The following steps are for installation of the belt.19. Apply 5P3975 Rubber Lubricant on the inboard drive and