789B Off-Highway Truck Hydraulic System Caterpillar


Hydraulic Components and Lines

Usage:

789B 7EK



Illustration 1g00321232

Top view of hoist oil lines group

(9) Oil pump drive

(32) (33) Hoist and rear brake cooling gear pump

(37) Counterbalance valve

(38) Hoist cylinders

(39) Hoist diverter valve

(41) Torque converter, hoist, brake, and transmission hydraulic tank

(43) Oil screen for the hoist

(44) Oil screen for the rear brake cooling




Illustration 2g00321233

Side view of hoist oil lines group

(32) (33) Hoist and rear brake cooling gear pump

(37) Counterbalance valve

(38) Hoist cylinders

(39) Hoist diverter valve

(41) Torque converter, hoist, brake, and transmission hydraulic tank

Caterpillar Information System:

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740 Articulated Truck, 768C, 769C, 769D, 772B, 773B, 773D, 773E, 773F, 776, 776B, 776C, 776D, 777, 777B, 777C, 777D, 777F, 784B, 784C, 785, 785B, 785C, 785D, 789, 789B, 789C, 789D, 793, 793B, 793C and 793D Off-Highway Trucks and 771C, 771D, 775B, 775 Service Tools
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