SERVICE PROCEDURE MAINTENANCE
4-44
REMARK
If distilled water is added to above the bottom of the sleeve, use a syringe to lower the level to the bottom of the
sleeve. Neutralize the removed fluid with baking soda (sodium bicarbonate), then flush it away with a large amount
of water or consult your Komatsu distributor or battery maker.
WHEN IT IS POSSIBLE TO USE INDICATOR TO CHECK ELECTROLYTE LEVEL
If it is possible to use an indicator to check the electrolyte level, follow the instructions given.
CHECK PARKING BRAKE 4
Test conditions
q Tire inflation pressure: as specified
q Road surface: Dry paved surface with 25% grade
q Machine: Operating condition
Test method
1. Start the engine and set the work equipment to the travel
posture.
2. Align the machine facing straight to the front, then drive the
machine up a 25% grade with the bucket empty.
3. Apply the brake to stop the machine, return the directional
lever to the neutral position ‚N', set the parking brake to the
LOCK position and stop the engine.
4. Release the brake pedal slowly and check whether the
machine is held in Stop position.
CHECK AIR CONDITIONER COMPRESSOR BELT TENSION, ADJUST 4
CHECKING
1. Open the engine side cover on the left side of the chassis.
2. Standard deflection “a“ between air conditioner compres-
sor pulley (1) and fan pulley (2) when pressed with a thumb
(approx. 98 N (10 kg)) should be approx. 9.5 to 13.5 mm
(0.4 to 0.5 in).
When a belt tension gauge is used, the standard tension is
within a range of 353 to 549 N (36 to 54 kgf).
9EA04476-A
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