Komatsu WA65-5, WA70-5, WA80-5 Wheel Loader Service Manual

Table of Contents

00 SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .00-1
01 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .01-1
10 STRUCTURE AND FUNCTION . . . . . . . . . . . . . . . . . . . . . .10-1
20 TESTING AND ADJUSTING . . . . . . . . . . . . . . . . . . . . . . . .20-1
30 DISASSEMBLY AND ASSEMBLY . . . . . . . . . . . . . . . . . . .30-1
90 OTHERS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90-1

Manual Extract Regular maintenance Air Conditioning :

Check the air-conditioning system twice a year, in spring and autumn.
The air conditioning system must be switched on at least once a month for a brief time (approx. 10 min) so that the compressor is lubricated.

The following maintenance work must be carried out at the beginning, middle and end of a cooling period:
Check V-belt tension and compressor fastening.
1. Compressor
2. Fixing screw
3. Cover for Tension Pulley
Check coolant level, See chapter 10 STRUCTURE AND FUNCTION “Checking coolant level” on page 10-84.
NOTE

The coolant must flow through the filter dryer’s inspection glass free of bubbles with the engine running and air conditioner at maximum output (max. blower setting, top idling speed, setting “cold”).
Clean the condenser