793B Off-Highway Truck Air System and Brakes Caterpillar


Air System

Usage:

793B 1HL


Illustration 1g00815411
(1) AUTO lube tank
(2) Air tank check valves
(3) Drain valve
(4) Primary air tank
(5) Air relief valve for primary air tank
(6) Attachment shutters for the left cylinder and for the right cylinder
(7) Attachment inversion valve
(8) Solenoid valve for attachment shutters
(9) Junction box
(10) Starter relay valve
(11) Air starting motor
(12) Air compressor with air compressor governor
(13) Air dryer with air relief valves
(14) External air supply
(15) Engine wastegate
(16) Wastegate sensor
(17) Starter solenoid valve
(18) Drain valve
(19) Torque converter and front brake cooling diverter valves
(20) Brake air relay valve
(21) Brake air relay valve for the Automatic Retarder Control (ARC)
(22) Air suspension seat
(23) Solenoid valve for AUTO lube
(24) Air system pressure protection valve
(25) Air pressure sensor
(26) Parking and secondary brake valve
(27) Double check valve
(28) Wiper motor
(29) Window wiper air control valve
(30) Service brake air control valve
(31) Brake master cylinder (front)
(32) Brake master cylinders (rear)
(33) Automatic Retarder Control pressure switch
(34) Stop lamp switch
(35) Service brake and retarder switch
(36) Switch for Traction Control System (TCS)
(37) Retarder air control valve
(38) Secondary brake air control valve
(39) Air control valve (Parking brake)
(40) Secondary brake and parking brake switch
(41) Automatic Retarder Control (ARC) valve
(42) Automatic Retarder Control (ARC) pressure switch
(43) Secondary air tank
(44) Air horn
(45) Air horn solenoid
(46) Cab wall

Location Of Components



Illustration 2g00817673
Compartment in the front of the cab
(27) Double check valve
(30) Service brake air control valve
(33) Automatic Retarder Control pressure switch
(38) Secondary brake air control valve
(41) Automatic Retarder Control valve
(42) Manual retarder pressure switch


Illustration 3g00817675
Compartment in the rear of the cab
(2) Air tank check valve
(43) Secondary air tank


Illustration 4g00817676
Compartment in the rear of the cab
(24) Air system pressure protection valve
(25) Brake air pressure sensor
(34) Stop lamp switch
(36) Service brake and retarder pressure switch
(40) Secondary brake and parking brake pressure switch


Illustration 5g00816621
Top view of air lines in the cab
(2) Air tank check valve
(24) Air system pressure protection valve
(27) Double check valve
(30) Service brake air control valve
(37) Retarder air control valve
(38) Secondary brake air control valve
(43) Secondary air tank


Illustration 6g00816623
Side view of air lines in the cab
(2) Air tank check valve
(24) Air system pressure protection valve
(27) Double check valve
(30) Service brake air control valve
(38) Secondary brake air control valve
(43) Secondary air tank


Illustration 7g00816625
Top view of air lines for the chassis
(2) Air tank check valve
(4) Primary air tank
(12) Air compressor with an air compressor governor
(13) Air dryers with air relief valves
(19) Torque converter and front brake cooling diverter valve
(20) Brake air relay valve
(21) Brake air relay valve that is for the Automatic Retarder Control
(26) Parking and secondary brake valve
(31) Brake master cylinder (front)
(32) Brake master cylinders (rear)


Illustration 8g00816627
Side view of air lines for the chassis
(4) Primary air tank
(20) Brake air relay valve
(21) Brake air relay valve for the Automatic Retarder Control
(14) Air compressor with an air compressor governor
(13) Air dryers with air relief valves
(26) Parking and secondary brake valve
(19) Torque converter and front brake cooling diverter valve
(31) Brake master cylinder (front)
(32) Brake master cylinders (rear)

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