SANY SY265C LC Operation And Maintenance Manual page 203

SY265C LC/SY265C LR Excavator OMM
4. Loosen the compressor bracket fasteners (2).
NOTE: Not all bracket fasteners are shown.
5. Loosen the jam nut (3) on the tension adjustment bolt
(4).
6. Use a tensioning gauge to check the tension of the air
conditioner compressor belt between two pulleys.
7. With a force of 80–120 lbf (356–534 N), the belt should
deflect 0.20 in.–0.31 in. (5 mm–8 mm).
8. Turn the tension adjustment bolt to adjust the belt
tension.
NOTE: If the belt is out of the tension range, replace the
belt and perform the belt tension check again.
9. Tighten the jam nut to lock the tension adjustment bolt
in place.
10. Tighten the compressor bracket fasteners.
NOTE: Replace the belt if:
It has stretched and there is little margin left for adjustment.
•
Cuts or cracks are found in the belt.
•
The belt slips or squeals.
•
NOTE: Newly installed V-belts need to be adjusted after the first hour of operation.
SANY
Fig. 5-52
Fig. 5-53
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