Komatsu HB365LC-3, Operation & Maintenance Manual

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METHOD FOR CHECKING AIR CONDITIONER COMPRESSOR BELT
1.
Open the engine hood (1).
2.
Remove the guard (2).
3.
Press the midpoint between compressor pulley (A) and fan
pulley (B) with a finger (approximately 58.8 N {6.0 kg} ).
If deflection (C) is 13 to 15 mm the belt tension is normal.
If the deflection is out of the standard, adjust it to the
standard value.
METHOD FOR ADJUSTING AIR CONDITIONER COMPRESSOR BELT
1.
Loosen bolt (2) and nut (3).
REMARK
Loosening bolts (2) and (3) allows compressor (4) to move
around the mounting position of bolt (2).
2.
Adjust by moving compressor (4).
3.
When the compressor is positioned, fix it by tightening
bolts (2) and (3).
NOTICE
• Check each pulley for damage, wear of the V-groove, and the wear of the V-belt. In particular, be
sure to check that the V-belt is not touching the bottom of the V-groove.
• Replace the belt with a new one if the belt is stretched and has no allowance for adjustment, or has
slipping sound or squeak because of cuts or cracks of the belt.
• When the new V-belt is installed, readjust it after operating for 1 hour.
METHOD FOR LUBRICATING SWING CIRCLE
Items to be prepared
MAINTENANCE PROCEDURE MAINTENANCE
4-50