Brake Accumulator - Check
- Start the engine and run the engine at low idle.
- Allow the engine to idle for at least 2 minutes to charge the accumulators fully.
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Note: The brake oil pressure indicator light (1) should come on when the engine is started. The indicator light should turn off when the braking system reaches normal operating pressure.
- Turn the engine start switch to the OFF position.
- Turn the engine start switch to the ON position but do not start the engine.
- Depress the service brake pedal for at least five applications until the indicator light comes on.
- If the indicator light comes on after less than five applications, check the nitrogen precharge pressure of the brake accumulator. Consult your Cat dealer for the proper tools.
Note: To discharge the brake accumulator completely, depress the service brake pedal for at least 30 applications.
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