Operation
Safety, Operation and Maintenance Manual - Sep 2012
4-10
SY115C9/135C/155H Crawler Hydraulic Excavator
Remark:
The oil level may change as the oil tempera-
ture varies. (Refer to the following ranges.)
●
Before operation: L+12.5~L+32.5
(Oil temperature: 10 - 30°C (50 - 86°F))
●
During operation: higher than the mid-
mark.
(Oil temperature: 50 - 80°C (122 -176°F))
4.1.2.5
Coolant - check/re
fi
ll
The coolant is hot and the radiator is
under high pressure upon shutdown of
the engine. It is possible to be burned if
you remove the radiator cap (1) to check
coolant level at the moment. In this case,
before removing the cap (1), you have to
wait for the temperature to cool down, and
then slowly turn the cap to release internal
pressure.
WARNING
1
CZ135B-1103021
FULL
LOW
2
CZ135B-1103022
Fig. 4-10
Fig. 4-11
1. The level of coolant must remain between
the upper and lower limits marked on the
tank when the engine is running. If water
level is below the lower limit, it is neces-
sary to add coolant to radiator and coolant
to auxiliary tank.
2. Open the rear door to the left side of
machine and check the coolant in auxiliary
tank (2) to see whether its level is between
the marks of FULL and LOW. If the coolant
level is low, re
fi
ll coolant to FULL position
through the injection opening of auxiliary
tank (2).
3. Tighten the cap after re
fi
lling the coolant.
4. If auxiliary tank (2) is empty, the coolant
might leak. Correct the fault immediately
