Lull 644E-42 Operation Manual - Manual (Page 126)

124 Model 644E Origin 3/04
General Maintenance
Air Conditioner Compressor Belt Check
(1000 Hour Intervals)
1. Level the vehicle, ground the attachment, place
the travel select lever in the (N) NEUTRAL
DETENT position, engage the parking brake switch and shut off the
engine.
2. Unlatch and open the engine cover.
3. Inspect the air conditioner compressor belt (1). Replace if cracked or
frayed.
4. Check the tension of the belt midway between the fan pulley (2) and the
compressor pulley (3). The belt deflection should be 3/16" (4,8 mm) with an
applied force of 5-1/2 lb (2,5 kg).
5. Adjust the tension on the belt by loosening the bolts (4) on the compressor
bracket (5). Adjust the belt with the nut on the adjustment rod end (6).
Tighten the compressor bracket bolts when adjustment is complete.
6. Close and latch the engine cover.
8. Air Conditioner Compressor Belt (Optional)
1000
OH2690
OU1480
1 2
3
4
5
6
4