Oil Is Leaking Around The Pedal Base - Komatsu 930E-2 Shop Manual

POSSIBLE CAUSES
TROUBLE: Oil is Leaking Around the Pedal Base
Defective seal on top of brake valve.
TROUBLE: The Pump Cycles Too Often Or Low Pressure Warning Comes On At Low Engine RPM
Excessive internal leakage in a component.
Steering accumulator precharge too high or too low.
Brake Valve plumbed incorrectly.
Internal leakage in brake valve assembly.
Internal leakage in dual relay valve assembly.
Steering/Brake pump is worn.
Pump unloader or compensator not adjusted correctly.
J4-12
SUGGESTED CORRECTIVE ACTION
Replace the seal.
Check all steering and brake system components.
Check steering accumulator precharge.
Correct plumbing.
Replace brake valve assembly.
Rebuild or replace dual relay valve
Rebuild or replace pump.
Adjust pump pressure controls.
Brake Circuit Checkout J04025