Komatsu 830E-AC Shop Manual page 592

MACHINE MODEL_______UNIT NUMBER_________SERIAL NUMBER________________
Operate Hydraulic Steering System to obtain proper operating temperature. Refer to Check-out Procedures.
STEP 2 _______________
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STEP 6 _______________
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STEP 8 _______________
STEP 9 _______________
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STEP 12 _______________
STEP 13 _______________
STEP 14 _______________
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J4-12
KOMATSU CHECK-OUT PROCEDURE
HYDRAULIC BRAKE SYSTEM DATA SHEET
Initial System Set-up
Front brake accumulator charged to 9653 kPa (1400 psi).
Rear brake accumulator charged to 9653 kPa (1400 psi).
Front brake pressure when auto apply releases - approx. 14,479 ± 690 kPa
(2100 ± 100 psi).
Rear brake pressure when auto apply releases - approx. 10,894 ± 517 kPa
(1580 ± 75 psi).
Parking Brake
Park brake release pressure - 17,238 ± 690 kPa (2500 ± 100 psi).
Left outboard lining/disc gap.
Left inboard lining/disc gap.
Right outboard lining/disc gap.
Right inboard lining/disc gap.
Brake System
Rear brake pressure when front brake pressure begins to rise - 310 - 1413 kPa
(45 - 205 psi).
Rear brake pressure when stop lights illuminate - 517 ± 34 kPa (75 ± 5 psi).
Front brake pressure, pedal applied - 20,685 ± 1034 kPa (3000 ± 150 psi).
Rear brake pressure, pedal applied - 10,894 ± 517 kPa (1580 ± 75 psi).
Brake Circuit Check-Out Procedure J04036