Komatsu 82E Series - Radiator Cap Inspection; Water Leak Check in Cooling Water System

2-30 82E-5 – 98E-5 SERIES
2. INSPECTION AND ADJUSTMENT
2.5 Water Leak Check in Cooling Water System
Check cooling water leakage from the cooling water
system visually. If any problem is found, inspect as
follows.
1) Fill cooling water to the normal level in the radia-
tor, and install the cap tester on the radiator.
2) Operate the manual pump to set the pressure to
0.09 ± 0.015 MPa {0.9 ± 0.15 kg/cm
2
}. If the cap
tester pressure gauge reading drops then, water
is leaking from the cooling water system. Check
the water leaking point.
2.6 Radiator Cap Inspection
Install the radiator cap on the cap tester. Set the
tester pressure to 0.09 ± 0.015 MPa {0.9 ± 0.15 kg/
cm
2
} and see that the cap is opened. If the cap does
not open, replace the cap since it is abnormal.