69
PIM00504
13.5 Oil Cooler Maintenance Instructions
WARNING
Before starting maintenance work, stop the unit running and shut off the source power
supply.
Wear protective glasses and gloves for this work.
i)
The cooler fins are sharp, so take care.
ii) When using air blow, take care to avoid getting foreign matter in your eyes.
CAUTION
Take care to ensure that no excessive forces are applied to the power cable or connector of
the DC fan during the work.
Note that oil will flow out from the piping and oil cooler during disassembly.
13.5.1 Removing the oil cooler
1) Disconnect the connector for the DC fan wiring.
2) Remove the hose clamps (2 locations), and pull off the two hoses fitted to the oil cooler. At this
time, fit e.g. a blind plug to the hoses before starting further work since oil may leak due to
reverse flow of oil from the tank.
3) Remove two cross-recessed hexagonal bolt and washer assemblies (M6
×
20L) and remove the
oil cooler.
Cross-recessed
hexagonal bolt
and washer
assembly
(M6
×
20L), two
Hose clamp
(2 locations)
Connector for DC
fan wiring