Lubricate Center Drive Shaft; Check Fan Belt For Wear - Komatsu WA800-3E0 Series Operation & Maintenance Manual

MAINTENANCE

LUBRICATE CENTER DRIVE SHAFT

(3 places)
If you fail to grease the drive shaft, the shaft will break, and there is danger that the broken shaft will cause
serious damage to the machine. To avoid this problem always maintain the specified greasing interval
strictly.
1. Using a grease pump, pump in grease through the grease
fittings marked by the arrows.
2. After greasing, wipe off any old grease that was pushed
out.

CHECK FAN BELT FOR WEAR

Check the V-belt and when the following conditions exist, replace or adjust the V-belt.
q When there is a clearance between the tension pulley lever and tip of the adjustment screw.
q When the V-belt makes contact with the bottom of the groove in each pulley.
q When the V-belt is worn, and its surface is lower than the outer diameter of the pulley.
q When the V-belt is cracked or flaked.
q When the V-belt makes an abnormal noise.
A device is installed to maintain the tension constant regardless of any elongation of the V-belt, so there is no need
to carry out adjustment until the V-belt is replaced.
For details of the replacement and adjustment procedure for V-belt, refer to "REPLACE FAN BELT, ADJUST
AUTO-TENSIONER (4-39)".
CAUTION
SERVICE PROCEDURE
4
4
4-59