J04031 Brake Circuit Check-Out Procedure J4-11
KOMATSU CHECK-OUT PROCEDURE
HYDRAULIC BRAKE SYSTEM DATA SHEET
MACHINE MODEL_______UNIT NUMBER_________SERIAL NUMBER________________
Initial System Set-up
Operate Hydraulic Steering System to obtain proper operating temperature. Refer to Check-out Procedures.
STEP 2 _______________ Brake Accumulators charged to 1400 psi (9.65 MPa).
STEP 6 _______________ Auto apply brake release pressure.
Parking Brake System
STEP 8 _______________ Parking brake release pressure.
STEP 9 _______________ Left outboard lining/disc gap.
_______________ Left inboard lining/disc gap.
_______________ Right outboard lining/disc gap.
_______________ Right inboard lining/disc gap.
Service Brake System
Refer to appropriate Service Manual procedures and Bleed brakes; Bleed park brakes.
STEP 11 _______________ Rear brake pressure when front brake pressure begins to rise.
STEP 12 _______________ Rear brake pressure when stop lights energize.
STEP 13 _______________ Front brake pressure, pedal applied.
_______________ Rear brake pressure, pedal applied.
STEP 14 _______________ Front brake circuit pressure, pedal completely released.
_______________ Rear brake circuit pressure, pedal completely released.
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