parts catalog

BOLT 2H9451 - Caterpillar

2H9451 BOLT Caterpillar parts 977H, D353C BOLT
Alternative (cross code) number:
Caterpillar 2H9451 BOLT
Weight: 0.70 pounds 0 kg.

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Compatible equipment models: 2H9451:

TRACK LOADER  977H   Caterpillar
Number on catalog scheme: None
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Implement Lockout Switch
Illustration 8 g03447706The implement lockout switch is designed to de-energize the implement lockout solenoid. The ECM will provide power to the solenoid through the implement lockout switch. The circuit is open and the implement lockout solenoid is de-energized, when the switch is placed in the LOCKED position. The switch should be in the LOCKED position before any of the following conditions occur:
The operator exits the machine.
The machine is serviced.
The machine is left unattended.The switch affects the system in the following manner:LOCKED - The implement lockout solenoid is de-energized. The implement system is no longer operable.UNLOCKED - The implement lockout solenoid is energized. The implement system is enabled.The switch is a single-pole rocker switch. The switch has a normally closed contact and a normally open contact. One contact connects to the switch input of the ECM. The other contact connects to the feedback input of the ECM and to the lockout solenoid. The pole of the switch connects to the output of the ECM for the implement lockout solenoid. The ECM can always determine whether the switch is in the LOCKED position or the UNLOCKED position. The two input circuits are used for diagnostic purposes. The ECM will detect a failure in the circuit if the two circuits of the switch are ever in the same state. The ECM will also record a diagnostic code. The diagnostic code that is associated with the implement lockout switch is CID 0490.Winch On/Start Switch
Illustration 9 g03376439The winch on/start switch is a single pole switch. The switch has a normally connected and normally open contact. When the pushbutton on the winch control handle is not depressed, the normally connected contact is connected to the return and the normally open contact floats to a high-voltage state. When the pushbutton is depressed, the normally open contact is connected to the return and the normally connected contact floats to a high-voltage state. Based on the voltage state of the two ECM contacts, the ECM determines if the on/start switch pushbutton has been depressed. The button engages the on/start feature for the winch.Outputs
The ECM responds to decisions by sending electrical signals to the outputs. The outputs can create an action or the outputs can provide information to the operator or the service technician.Proportional Solenoids
Illustration 10 g03347475
Blade Raise/Lower Solenoids
Blade Tilt Solenoids
All proportional solenoids in the implement system are

Caterpillar parts catalog:

Caterpillar parts catalog
D353 ENGINE 46B01558-UP
D353 ENGINE 46B00001-00598
D353 ENGINE 46B00599-00808
D353 & G353 ENGINES 46B00809-01557
D353 ENGINE 46B01558-UP
977 TRAXCAVATOR 53A00001-01906 (MACHINE)
977 TRAXCAVATOR 53A01907-02999 (MACHINE)
977 TRAXCAVATOR 53A03000-04796 (MACHINE)
977 TRAXCAVATOR 53A04797-08886 (MACHINE)

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