- Load Haul Dump:
- R2900G (S/N: JLK1-UP)
Pressure switches have been added to the axle oil cooling system. The axle oil pressure switches are effective with JLK730-UP. Replace the existing information with the following information.
Axle Oil Cooler
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| Illustration 1 | g01184925 |
Axle oil cooler circuit | |
The components of the axle oil cooler circuit are the front axle oil temperature switch, the rear axle oil temperature switch, the front axle oil pressure switch, the rear axle oil pressure switch, and the Caterpillar Monitoring System ECM.
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| Illustration 2 | g01048036 |
Dash panel (1) Caterpillar Monitoring System ECM (behind display) (2) Axle oil temperature/pressure alert indicator | |
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| Illustration 3 | g01048037 |
Left side view of engine (3) Rear axle oil temperature switch (4) Front axle oil temperature switch | |
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| Illustration 4 | g01184933 |
Left side view of engine (5) Rear axle oil pressure switch (6) Front axle oil pressure switch | |
With the key start switch in the ON position, 24 volt power is supplied from the batteries via circuit breaker #1 to the Caterpillar Monitoring System ECM.
Caterpillar Monitoring System ECM (1) sends a signal to front axle oil temperature switch (4), rear axle oil temperature switch (3), front axle oil pressure switch (6), and rear axle oil pressure switch (5). The axle oil temperature switches and the axle oil pressure switches remain in the closed position during normal operation. Axle oil temperature/pressure alert indicator (2) will be off.
When front or rear axle oil temperature is not within the preset value, the axle oil temperature switches will be open. The Caterpillar Monitoring System ECM will turn on axle oil temperature/pressure alert indicator (2). When front or rear axle oil pressure is not within the preset value, the axle oil pressure switches will be open. The Caterpillar Monitoring System ECM will turn on axle oil temperature/pressure alert indicator (2) .