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WASHER 0878406 - Caterpillar



0878406 WASHER Caterpillar parts WASHER
Rating:
26
Alternative (cross code) number:
CA0878406
087-8406
0878406
Caterpillar 0878406 WASHER

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Illustration 1 g03714934
Operator Platform (1) Power distribution module (2) Relay driver modulePower distribution module (1) and relay driver module (2) are located in the left platform compartment. This compartment is located at the front of the operator platform.Power distribution module (1) works with the machine ECM to control auxiliary system functions. The machine ECM receives input signals from components around the machine that monitor current machine operating conditions. System software compares the gathered input to information that is stored in the memory of the ECM. The software evaluates the current conditions and generates output signals in order to control auxiliary system functions within set parameters.
Illustration 2 g03714933
Power Distribution Module (3) Truck hitch open relay (4) Truck hitch close relay (5) Auger raise relay (6) Auger lower relay (7) Fumes enable relay (8) Apron fold up relay (9) Apron fold down relay (10) Right tow point raise relay (11) Right tow point lower relay (12) Left tow point raise relay (13) Left tow point lower relayPower distribution module (1) relays and fuses are located under the module cover. The module cover must be removed to access these components.Power distribution module (1) contains components used in the auxiliary system. The module contains the following components:
Truck hitch relays (3) and (4)
Auger height relays (5) and (6)
Fumes enable relay (7)
Apron relays (8) and (9)
Tow point relays (10), (11), (12), and (13)
Illustration 3 g03714936
Left Side of Tractor (14) Screed assist pressure sensorScreed assist pressure sensor (14) is located on the backside of the auxiliary manifold, on the left side of the tractor. The left side compartment door provides access to this component.Screed assist pressure sensor (14) provides input signals to the machine ECM. This information is displayed on, and adjustable through, the operator displays.
Illustration 4 g03714935
Beneath Tractor Control Station (15) Force feedback deviceForce feedback device (15) is located on the steering column below the tractor operator station. The cover on the steering column provides access these components.Force feedback device (15) contains a solenoid and a sensor. The device is controlled by the transmission ECM. The device uses a rotary damper with a variable viscous fluid that flows freely when the steering wheel is turned at low speeds. As the wheel is turned faster, the force feedback device applies an increasing variable force to the steering wheel. In this case, the force feedback causes the wheel to resist turning. When the machine has reached the mechanical steering limit, the highest friction level is applied to the steering wheel. A pulsed signal is sent to the force feedback device when the operator reaches the end stop.The desired steering angle is determined by the steering wheel sensor in force feedback device (15). The actual steering angle is determined by the steering position sensor in the steering cylinder.


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