R1600G Load Haul Dump Machine Electrical System Main Power Relay Caterpillar


Main Power Relay
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R1600G Load Haul Dump Machine Electrical System [KENR8511]
ELECTRICAL AND STARTING SYSTEM
RELAY GP
R1600G Load Haul Dump Machine Electrical System Main Power Relay



Illustration 1g01413721

Main relay magnetic switch circuit

The components of the main relay magnetic switch circuit are the key start switch, the main relay magnetic switch, and the idle timer/fire suppression loop receptacle.




Illustration 2g01022428

Dash panel

(1) Key start switch

(2) OFF position

(3) ON position




Illustration 3g01022433

Cab (below rear arm rest)

(4) Main relay magnetic switch




Illustration 4g01022439

View of upper cab (cover removed)

(5) Idle timer/fire suppression loop receptacle

With the key start switch in the OFF position (2), the main relay magnetic switch is not energized and the relay contacts are open. In this condition, 24 volt power is present in circuit breaker #11, circuit breaker #12, circuit breaker #13, and circuit breaker #14.

When key start switch (1) is turned to the ON position (3), 24 volt power is supplied via a idle timer/fire suppression loop receptacle (5) to main relay magnetic switch (4). The main relay magnetic switch is energized and the relay contacts are closed. 24 volt power is now supplied to all circuit breakers.

Information System:

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