GASKET 7S6864 - Caterpillar

Failure to use an appropriate external access platform for direct access to the inspection cover of swing gear could result in slipping and falling which could result in personal injury or death.
Improper lubrication can cause damage to machine components.To avoid damage, make sure that the proper amount of grease is applied to the swing drive.When the amount of grease in the compartment becomes too large, the agitation loss becomes large, thereby accelerating grease deterioration.Grease deterioration can cause damage to the pinion gear of the swing drive and swing internal gear. Not enough grease will result in poor gear lubrication.
The swing gear should be checked if the machine has not been used for a long time.
Use an external access system to access the inspection cover of swing gear.
Remove the inspection cover that is located near the boom base. Inspect the grease.
Illustration 1 g02723118
(1) Bolts
(2) Washers
(3) Cover
(4) Gasket
Remove bolts (1) and washers (2). Remove cover (3) and gasket (4).
Inspect gasket (4). Replace the gasket if damage is evident.
Illustration 2 g02723116
Check the level of grease. The level of grease is correct when:
Waves of grease are present from the rotating swing drive pinion.
The grease is evenly distributed on the floor of the pan.Note: Smeared or waveless areas are evidence for a lack of grease.Note: Add grease, as needed. Remove grease, as needed. Too much grease will result in the deterioration of the grease because of excessive movement of the grease. Too little grease will result in poor lubrication of the swing gear.
Check for contamination and for discolored grease.
Illustration 3 g00309463
(5) Plug
(6) O-ring seal
If the grease is contaminated or if the grease is discolored with water, change the grease. Remove plug (5) to allow the water to drain. When you reinstall plug (5), inspect the O-ring seal (6). Replace the O-ring seal if damage is evident.
Descend the machine using an external access system. Keep the external access system away from the machine.
Raise the boom and turn the upper structure by 1/4 turn. Lower the work tool to the ground.
Use an external access system to access the inspection cover of the swing gear and repeat Step 5 to Step 9 at every 1/4 turn in four places. Add grease, as needed.
Install gasket (4), cover (3), washers (2), and bolts (1).