776D, 777D and 777D HAA Off-Highway Truck/Tractors Hydraulic System Caterpillar


Hydraulic System

Usage:

776D 5ER



Illustration 1g00720784

(1) Lockup clutch and solenoid valve group

(2) Outlet relief valve for the torque converter

(3) Secondary steering and parking brake valve

(4) Passage to rear wheel brakes

(5) Inlet relief valve for torque converter

(6) Torque converter

(7) Oil cooler for torque converter oil to rear brakes

(8) Oil pump drive

(9) Parking brake release oil filter

(10) Torque converter oil filter

(11) Lockup clutch for the torque converter

(12) Oil cooler screen

(13) Parking brake release oil filter

(14) Torque converter charging section of oil pump

(15) Torque converter scavenge section of oil pump

(16) Torque converter scavenge screen

(17) Left rear wheel brake

(18) Right rear wheel brake

(19) Hydraulic oil tank

(20) Oil pump for hoist hydraulics and rear brake cooling

(21) Suction screen for the torque converter pump

(22) Oil cooler relief valve for the rear brakes

(23) Control valve for hoist hydraulics

(24) Return oil screen for hoist hydraulics

(25) Suction screen for hoist pump

(26) Pilot relief valve for hoist system

(27) Diverter valve

(28) Oil cooler for oil to rear brakes

(29) Screen

(30) Line to implement hydraulics

(31) Brake cooling section of oil pump for the pulled unit

(32) Left wheel brake for the pulled unit

(33) Right wheel brake for the pulled unit

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