Check Swing Pinion Grease Level, Add Grease; Lubricate Swing Circle; Clean And Inspect Radiator Fins, Oil Cooler Fins, Aftercooler Fins,Fuel Cooler Fins, And Air Conditioner Condenser Fins - Komatsu PC138USLC Operation & Maintenance Manual

MAINTENANCE

CHECK SWING PINION GREASE LEVEL, ADD GREASE

Prepare a scale.
1. Remove bolts (1) (2 bolts) on the top of the revolving frame and
remove cover (2).
2. Insert a scale into the grease and check that the height of the
grease in the portion where the pinion passes is at least 4 mm
(0.158 in). Add more grease if necessary.
3. Check if the grease is milky white. If it is milky white, it is
necessary to change the grease. Please contact your
Komatsu distributor.
The total amount of grease is 10 liters (9.1 kg) (2.64 US gal, [20
lb]).
4. Install cover (2) with bolts (1).

LUBRICATE SWING CIRCLE

1. Lower the work equipment to the ground.
2. Using a grease pump, pump in grease through the grease
fittings shown by arrows. (2 places)
3. After greasing, wipe off any old grease that was pushed out.
CLEAN AND INSPECT RADIATOR FINS, OIL COOLER FINS, AFTERCOOLER FINS,FUEL COOLER
FINS, AND AIR CONDITIONER CONDENSER FINS
If compressed air, high-pressure water, or steam hits your body directly or dirt is sent flying by the compressed air, high-pressure
water, or steam, there is danger of personal injury. Always wear protective glasses, dust mask, and other protective equipment.
NOTICE
When use the compressed air, keep a distance from air nozzle, to prevents damage to the fins.
To prevent damage to the fins, apply compressed air from and appropriate distance. Damaged fins may cause water leakage or
overheating. In a dusty site, check the fins daily, irrespective of the maintenance interval.
WARNING
MAINTENANCE PROCEDURE
4 - 61