Komatsu HB365LC-3 Operation & Maintenance Manual page 226

MACHINE OPERATIONS AND CONTROLS
1.
Open the door on the rear right side of the machine.
NOTICE
If the reservoir tank is empty, leakage of coolant
should be suspected. After checking, repair any failure
immediately.
REMARK
If the inside of reservoir tank (1) is so dirty that you cannot
check the coolant level, see "METHOD FOR CLEANING
INSIDE OF COOLING SYSTEM (4-21)".
2.
Check the reservoir tank (1).
If the coolant level is within the range between FULL and
LOW, the coolant amount is at a proper level.
If the coolant level is below LOW, add coolant to FULL lev-
el through the filler port of reservoir tank (1).
3.
Tighten the cap securely after the refilling.
4.
Check the coolant level in the radiator. If the coolant level
is low, add Non-Amine Engine Coolant (AF-NAC) of the
same density as Non-Amine Engine Coolant (AF-NAC) in
the radiator, and then add it to the reservoir tank.
5.
Check that the hybrid radiator coolant sight gauge (3) is fil-
led with coolant. If it is not filled, remove the radiator cap
(4) for hybrid component, and add coolant up to the level
(a) of sight gauge (5).
NOTICE
• The coolant reservoir tank is a special one for the
engine radiator.
• If the coolant reservoir tank is empty, leakage of
coolant should be suspected.
After checking the engine radiator, hybrid compo-
nent radiator, and their respective coolant pipings,
if any problem is found, ask your Komatsu distrib-
utor for repair.
If no problem is found, check the level of the cool-
ant in the engine radiator and hybrid component
radiator. If it is low, add coolant to each radiator,
and then to the reservoir tank.
Engine radiator
(6) Engine radiator
(7) Engine radiator cap
3-154
OPERATION