E – 284 – Low Brake Accumulator Pressure
The brake charging pump supplies the parking brake accumulator and the service brake accumulator. The accumulators supply the required oil flow to ENGAGE the front and rear service brakes, and the accumulator supplies oil to DISENGAGE the rear parking brakes.
The pressure in the accumulators is monitored by a sensor in the accumulator charging valve and is electro-hydraulically controlled.
Low brake accumulator pressure can be caused by various concerns, and it is recommended that you Immediately Perform A Safe Shutdown To Prevent Injury Or Severe Damage when a fault occurs.
793F Schematic for the Brake Actuation |
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Diagnosing
Initial diagnosis should begin with the following:
793F Components for the Brake Actuation |
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Low brake accumulator pressures can lead to brake/parking system operational concerns, premature component wear, or brake/parking system failure.
Brake system faults should be addressed immediately as they may be a SAFETY CONCERN FOR THE OPERATOR, WORK SITE, OR MACHINE.
Please contact your H.O Penn service representative with any questions or to schedule a service visit.
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