Komatsu PC2000-8 BACKHOE, Operation & Maintenance Manual

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OPERATION
MACHINE OPERATIONS AND CONTROLS
3-161
2. Check that the coolant is between the FULL and LOW
range on reservoir tank (2). If the level is low, raise cap
lever (4) of cap (3) at the top of reservoir tank (2) to release
the internal pressure in reservoir tank (2).
3. Remove cap (5) from the water filler port, then add coolant.
4. After adding coolant, tighten cap (5) securely, then lower
the cap lever to secure cap (3) in place.
5. If the reserve tank (2) becomes empty, there is probably
water leakage. After checking, repair any abnormality
immediately. It no abnormality is found, check the level (6)
of the water in the radiator. If it is low, add coolant of the
same density in radiator according to the coolant density
table in “CLEAN INSIDE OF COOLING SYSTEM (4-27)“,
then add coolant to the reserve tank (2).
REMARK
Add coolant to the radiator as follows.