797F and 797F XQ Off-Highway Truck Automatic Lubrication System for Electric Start and Air Start Equipped Trucks Caterpillar

There are two options for powering the automatic lubrication system. The automatic lubrication system can be powered by air, or the automatic lubrication system can be powered electrically.

If the Automatic Lubrication System is electrically powered, the system will consist of two systems. The two systems are the electrical system and the lubrication system. The electrical system turns the automatic lubrication system on and off at periodic intervals. The lubrication system controls the flow of the lubricant to the bearings.

If the Automatic Lubrication System is powered by air, the system will consist of three systems. The three systems are the electrical system, the air system, and the lubrication system. The electrical system turns the automatic lubrication system on and off at periodic intervals. The air system connects the electrical system to the lubrication system. The air system is used to pressurize the lubrication system to provide a flow of lubricant to the bearings.

Location of Components

Illustration 1	g02013838
(1) Pump group for lubrication (2) Injector bank near the left front strut

Illustration 2	g02013833
(3) Injector bank near the right front strut (4) Rear injector bank

The automatic lubrication system is used to automatically lubricate the following components on the 797F Off-Highway Truck:

• Bearings of the left front strut

• Bearings of the right front strut

• Bearings of the left-hand steering cylinder (rod end)

• Bearings of the right-hand steering cylinder (rod end)

• Bearings of the left-hand steering cylinder (cylinder end)

• Bearings of the right-hand steering cylinder (cylinder end)

• Bearings of the left-hand upper hoist pivot

• Bearings of the right-hand upper hoist pivot

• Bearings of the left-hand body pivot

• Bearings of the right-hand body pivot

• Bearings of the left-hand lower hoist cylinder

• Bearings of the right-hand lower hoist cylinder

• Bearings of the left steering link

• Bearings of the right steering link

• Bearings of the center arm for steering

Illustration 3	g02014897
View of area (A) ( B) Supply line to rear injector bank (4) ( C) Supply line to injector bank (2) near the front right strut (D) Supply line from pump group (1) for lubrication (E) Supply line to injector bank (3) near the front left strut

Illustration 4	g02013841
View of lubrication pump for an electrically powered autolube system (1) Pump group for lubrication

Illustration 5	g02015393
View of lubrication pump for an autolube system that is powered by air (1) Pump group for lubrication

Illustration 6	g02013853
(2) Injector bank near the left front strut

Illustration 7	g06388343
Injector bank (2) near the left front strut (2a) Injector for the bearings of the left front strut (2b) Injector for the bearings of the left end of the left-hand steering link (2c) Injector for the bearings of the left-hand steering cylinder (rod end) (2d) Injector for the bearings of the middle of the center arm (2e) Injector for the bearings of the right end of the left-hand steering link (2f) Injector for the bearings of the bottom of the center arm (2g) Injector for the bearings of the left-hand steering cylinder (cylinder end)

Illustration 8	g02014054
(3) Injector bank near the right front strut

Illustration 9	g02014033
Injector bank (3) near the right front strut (3a) Injector for the bearings of the right-hand steering cylinder (cylinder end) (3b) Injector for the bearings of the left end of the right-hand steering link (3c) Injector for the bearings in the center of the center arm (3d) Injector for the bearings of the top of the center arm (3e) Injector for the bearings of the right-hand steering cylinder (rod end) (3f) Injector for the bearings of the right end of the right-hand steering link (3g) Injector for the bearings of the right front strut

Illustration 10	g02014058
(4) Rear injector bank

Illustration 11	g06388435
Rear injector bank (4) ( 4a) Injector of the bearings of the left-hand body pivot (outer) - if equipped (4b) Injector of the bearings of the left-hand body pivot (inner) - if equipped (4c) Injector for the bearings of the left-hand upper hoist pivot (4d) Injector for the bearings of the left-hand body pivot (center) (4e) Injector for the bearings of the left-hand lower hoist cylinder (4f) Injector for the bearings of the right-hand lower hoist cylinder (4g) Injector for the bearings of the right-hand body pivot (4h) Injector for the bearings of the right-hand upper hoist pivot (4j) Injector of the bearings of the right-hand body pivot (inner) - if equipped (4k) Injector of the bearings of the right-hand body pivot (outer) - if equipped