GENSET AND BATTERY PACK
4271491-Second Edition 3-13
3
Repair—Diesel Models
Fan Belt (Diesel Models)
Removal
See Figures 3-11 and 3-12.
Inspect and adjust the new engine belt after the first 50
hours of operation. Check and adjust annually thereafter.
1. Park the mower safely. (See “Park Mower Safely” on
page 1-6.)
2. Raise the hood.
Figure 3-11
3. Loosen screws (3) and push the alternator (2) toward
the engine to loosen the fan belt (1).
Figure 3-12
4. Remove fan belt (1) from the alternator (2), coolant
pump (5), and crankshaft pulley (4).
Installation
1. Install fan belt by reversing the order of removal.
2. Adjust belt tension by loosening alternator mounting
screws (3) and pulling alternator (2) against the belt
(1) until proper tension is achieved.
3. Measure belt tension at the midpoint between
pulleys. Adjust fan belt to 0.28–0.35 in.
(7–9 mm) deflection with a tension of 22 lb (98 N).
See the engine manufacturer’s manual for further
information.
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