1.
Check that the brake oil pressure caution lamp is not lit
(the brake accumulator pressure is sufficiently high).
2.
Release the parking brake.
3.
Push down the lock of adjustment screw (1).
4.
Turn the adjustment screw (1) counterclockwise and fit the
pad closely to the disc.
5.
Push down the lock of adjustment screw (1).
6.
Turn it back clockwise 240±15 ° (2/3 turns).
Measure the thickness (A) of the pad, and if it is 1.5 mm or
less, contact your Komatsu distributor to have it replaced.
When performing the first adjustment after replacing the
pad, push down the lock portion of adjustment screw (1)
and turn it back clockwise 360±15° (1 turn).
7.
After adjustment, check the parking brake performance.
If the machine moves, ask your Komatsu distributor for in-
spection.
CHECKS BEFORE STARTING
For the following items, see OPERATION, “METHOD FOR CHECKING BEFORE STARTING”.
• Drain water and sediment from fuel tank
• Check looseness of wheel hub bolts, and retighten
• Check oil level in transmission case, add oil
• Check dust indicator
• Check battery disconnect switch
• Check water separator, drain water and sediment
• Check oil level in steering and hoist oil tank, add oil
• Check oil level in brake sub tank, add oil
• Check oil leakage in rear brake oil collection tank
• Check coolant level, add coolant.
• Check oil level in engine oil pan, add oil
• Check electric wiring
• Check fuel level, add fuel
• Check DEF level, add DEF
• Check tire pressure
• Check machine monitor
• Check brake
MAINTENANCE PROCEDURE MAINTENANCE
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