844K Wheel Dozer Caterpillar


System Schematic

Usage:

844K K4Y
This simplified electrical schematic is for the 844K Wheel Dozer Electro Hydraulic and Power Train System. The schematic is correct but the schematic does not show all possible harness connectors.

Reference: Electrical Schematic , UENR4996, "844K Wheel Dozer (T4F) Electrical System Schematic" for the complete machine schematic. Electrical Schematic , UENR1697, "844K Wheel Dozer (LRC) Electrical System Schematic" for the complete machine schematic.



Illustration 1g03651124
Schematic of the J1 connections for the Implement ECM.


Illustration 2g03651125
Schematic of the J2 connections for the Implement ECM.


Illustration 3g03651127
Schematic of the J1 connections for the "Transmission" ECM.


Illustration 4g03651128
Schematic of the J2 connections for the "Transmission" ECM.


Illustration 5g03651132
Schematic of the CAN Data Link connections

Caterpillar Information System:

980M and 982M Wheel Loaders Power Train, Steering, Braking, Hydraulic, and Machine Systems Tilt Cylinder
980M and 982M Wheel Loaders Power Train, Steering, Braking, Hydraulic, and Machine Systems Suction Fan
980M and 982M Wheel Loaders Power Train, Steering, Braking, Hydraulic, and Machine Systems Suction Fan
980M and 982M Wheel Loaders Power Train, Steering, Braking, Hydraulic, and Machine Systems Differential and Bevel Gear
980M and 982M Wheel Loaders Power Train, Steering, Braking, Hydraulic, and Machine Systems Differential and Bevel Gear
980M and 982M Wheel Loaders Power Train, Steering, Braking, Hydraulic, and Machine Systems Differential and Bevel Gear
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953K and 963K Track-Type Loaders Ether Starting Aid Cylinder - Replace
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953K and 963K Track-Type Loaders Fuel System Water Separator - Drain
953K and 963K Track-Type Loaders Fuel Tank Cap and Strainer - Clean
953K and 963K Track-Type Loaders Fuel Tank Water and Sediment - Drain
844K Wheel Dozer Wiring Harness (Open Circuit) - Test
844K Wheel Dozer Wiring Harness (Short Circuit) - Test
844K Wheel Dozer Sensor Supply - Test
844K Wheel Dozer Operator Control Switch (Switch to Ground) - Test
844K Wheel Dozer Relay - Test
953K and 963K Track-Type Loaders Hydraulic System Oil - Change
953K and 963K Track-Type Loaders Hydraulic System Oil Level - Check
953K and 963K Track-Type Loaders Hydraulic Tank Breather - Replace
953K and 963K Track-Type Loaders Hydrostatic Transmission and Hydraulic System Filters - Replace
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