Replace Corrosion Resistor Cartridge; Check All Tightening Parts Of Turbocharger; Check Play Of Turbocharger Rotor; Check For Loose Rops Mount Bolts - Komatsu D65EX-12 Operation & Maintenance Manual

MAINTENANCE

REPLACE CORROSION RESISTOR CARTRIDGE

1. Screw in valve (1) at the top of the corrosion resistor.
2. Using a filter wrench, turn cartridge (2) to the left to
remove it.
3. Apply engine oil to the sealing surface of a new cartridge,
then install it to the filter holder.
4. When installing, screw in cartridge until seal comes in
contact with sealing surface, then tighten approx. 2/3
turn.
5. Open valve (1).
Use Komatsu genuine cartridge.

CHECK ALL TIGHTENING PARTS OF TURBOCHARGER

Please contact your Komatsu distributor to have the tightening portions checked.

CHECK PLAY OF TURBOCHARGER ROTOR

Please contact your Komatsu distributor to have the rotor play checked.

CHECK FOR LOOSE ROPS MOUNT BOLTS

(If equipped)
Check for loose and damaged bolts.
If any loose bolt is found, tighten to a torque of 927 ± 103N•m (94.5 ± 10.5kgf•m, 684 ± 76lbft)
If any damaged bolt is found, replace the bolt with a genuine Komatsu bolt.
SERVICE PROCEDURE
4-61