GEAR 7T8685 - Caterpillar

Forest Machine
Note: Caterpillar recommends the use of 5% molybdenum grease for lubricating the boom and stick linkage. Refer to Special Publications, SEBU6250, "Caterpillar Machine Fluids Recommendations" for more information on grease. Note: For some applications of the machine, the repeated duty cycle of the front linkage may only require small angular movements of the boom or stick. There might not be enough angular motion in order to distribute the grease between the pin and the bearing. The operator should operate the boom, the stick and the implement in order to distribute the grease within the joint assemblies.
Illustration 1 g00274917
Service a new machine after Every 10 Service Hours only within the initial 100 service hours.After the initial 100 service hours of operation, service the boom, the stick, and the implement control linkage after Every 50 Service Hours.Note: If the machine is operated under severe conditions that might cause abrasive material to enter the cylinder bearings, service the boom, the stick, and the implement after Every 10 Service Hours.Wipe all fittings before you apply lubricant.
Illustration 2 g00685797
Apply lubricant through the fitting at the base of each boom cylinder.
Illustration 3 g00102079
(1) Fitting. (2) Fitting.
Apply lubricant through fittings (1) and (2) at the base of the boom.
Illustration 4 g00102081
(3) Fitting. (4) Fitting.
Apply lubricant through fitting (3) on the rod end of each boom cylinder. Apply lubricant through fitting (4) on the head end of each stick cylinder.Note: To ensure proper lubrication of the lower boom bearings and of the boom cylinder rod end bearings, lubricant should be applied through fittings (1), (2), (3) and (4). Apply lubricant first when the boom is raised and any implement is suspended. Then apply lubricant when the boom is lowered and the implement is rested on the ground with a slight downward pressure.Under/Under Heel Boom
Illustration 5 g00109881
(5) Fitting. (6) Fitting.
Apply lubricant through two fittings (5) at the connection point of the boom and the stick. Apply lubricant through fitting (6) at the rod end of the stick cylinder.
Illustration 6 g00102084
(7) Fitting. (8) Fitting. (9) Fitting.
Apply lubricant through fitting (7) at the connecting point of the heel and stick pivot area. Apply lubricant through fitting (8) at the rod end of the heel cylinder. Apply lubricant through fitting (9) at the head end of the heel cylinder.Over/Under Heel Boom
Illustration 7 g00109913
(10) Fitting. (11) Fitting. (12) Fitting.
Fittings (10) and (11) are located in a manifold block at the connection point of the boom and the stick. Apply lubricant through fitting (10) at the rod end of the heel cylinder. Apply lubricant through fitting (11) in order to lubricate the bearing that connects the boom and the stick. Apply lubricant through fitting (12) at the rod end of the stick cylinder.
Illustration 8 g00109914
(13) Fitting. (14) Fitting.
Apply lubricant through fitting (13) at the rod end of the heel cylinder. Apply lubricant through fitting (14) at the connecting point of the heel and stick pivot area.