14-20
14. PERIODIC SERVICE
Ex2900 / 3200 Operator's Manual
■Servicing the Fan and Alternator Belt
Be careful to avoid injury:
●Fingers or loose clothing can be entangled with
rotating parts. Before servicing, shut down the
engine and allow all the moving parts to stop
completely.
1. Checking the Belt Tension
1. Park the tractor safely.
2. Raise the hood.
3. Remove the side panel from the left side of the engine.
4. With a thumb, gently apply pressure to the midpoint of
the belt between the pulleys. The belt should deflect
inward by approximately 3/8 in. (9 mm).
5. If the deflection is not as specified, adjust the tension
of the belt.
(A)Midpoint of the belt
(B)Adjusting bolt
(C)Mounting nut
(D)Mounting bolt
2. Adjusting the Belt Tension
1. Loosen the adjusting bolt.
2. Loosen the mounting bolt and nut.
3. Exert an outward pressure to the alternator housing to
attain the correct tension.
4. Retighten the mounting bolt, mounting nut and
adjusting bolt, in this order.
5. Check the belt tension.
6. Reinstall the side panel.
7. Lower the hood.
3. Replacing the Belt
NOTE:
●Replace an excessively worn, damaged or elongated
alternator belt with a new one.
1. Park the tractor safely.
2. Raise the hood.
3. Disconnect the black negative (–) cable from the
battery.
4. Remove both engine side panels.
5. Loosen the adjusting bolt.
6. Loosen the mounting bolt and nut.
7. Apply an inward pressure to the alternator housing.
WARNING
3013735
(B)
(A)
(C) (D)