Buhler 2425, 2360 Check Air-Conditioner Compressor Belt Tension, 2290, 2335, 2375 QSM11 Engine

SECTION 3 - LUBRICATION AND MAINTENANCE

EVERY 10 HOURS OR DAILY

OPERATION 5

Check Air-Conditioner Compressor Belt

Tension

Use a belt tension gauge to check and/or adjust belts, or use the firm thumb pressure and deflection method. With firm thumb pressure a properly adjusted belt should deflect 0.8 mm (1/32″) for each 25 mm (1”) of span between pulleys. If the belt requires adjustment, use the following procedures based on tractor model:

2290, 2335, 2375 (QSM11) Engine
Loosen the compressor pivot bolt located behind	1
the compressor next to the engine block. Tighten
the adjustment nut, 1, to increase belt tension.
Torque the pivot bolt to 79 N·m (58 ft. lbs.).

IMPORTANT: Do not adjust belt tension to full value with the adjusting nut. Belt tension can increase when the pivot bolt is tightened and, therefore, reduce belt and bearing life.

If the belt requires replacement, the adjustment should be backed off all the way, and the belt slipped up around the pulleys. Install the new belt by reversing the procedure and tension it as detailed above. Never pry a belt off or on a pulley as damage to the pulley and belt may result.

NOTE: The air-conditioning compressor drive belt is supplied by Buhler Versatile. Contact your Buhler Versatile dealer to obtain a new belt.

Figure 3-16

3-16