PIM00411
13-8
13.4
Oil cooler maintenance procedure
WARNING
Please stop operation and turn off the main power before maintenance.
Please wear gloves and protective glasses.
i ) Please pay attention to the fin portion of the core because it is sharp.
ii ) Please note that the foreign matters may enter your eyes at the time of air blow.
CAUTION
Please do not apply strong force to the connector and the power supply line of the AC fan while working.
Please note that the oil will flow out from the pipe or oil cooler during decomposition.
13.4.1
Removing the oil cooler
①
Loosen the cross-recessed truss head machine screws (M4×12, Fastening torque: 1.0N · m) of the full cover,
and remove the full cover.Then disconnect the connector of the fan, the fan earth cable.
②
Remove the hose bands (at two places), and disconnect the hoses (two pieces) at the top of the oil cooler. At
this time, oil may leak due to backward oil flow from the tank. Before conducting this step, attach a blind plug
to each hose.
③
Remove the hexagon socket head bolts (M5×16: 2 pieces) with washers, and dismount the oil cooler.
Hose bands (2 pieces)
《Unit left view》
Cross recessed truss
head machine screws
(M4×12: 10 pieces)
《Unit front view》
Hexagon socket head bolts
(M5 x 16: 2 pieces)
