CHAIN AS-LIFT 2609412 - Caterpillar

Illustration 1 g00274652
Inspect the condition of the compressor belt. The belt should deflect 14 to 20 mm (.56 to .81 inch) under 110 N (25 lb) of force.
Loosen the compressor mounting bolt and the adjusting bracket bolt.
To achieve the correct belt tension, move the compressor inward or move the compressor outward. Tighten the compressor mounting bolt and the adjusting bracket bolt. Recheck the belt adjustment.
If necessary, repeat Step 2 to Step 3. Check the cab air filters. If necessary, clean the filter elements.
If poor cooling persists, turn off the air conditioner. Stop the engine. Contact your Caterpillar dealer for air conditioner system service, if necessary.