Toro 23825, Operator'S Manual

Page: 105 / 128

Checking the Tension of the Belt
Service Interval: Every 1,000 hours
1. Park the machine on a level surface, stop the engine,
and remove the ignition key.
2. Open the front hood.
3. Align a straight edge over the drive belt and across the
pulleys as shown in
Figure 147 .
Figure 147
4. Press the belt down at the midway point between the
fan pulley and the alternator pulley as shown in
Figure
147 .
Note:
The range of belt deflection between the
straight edge and the belt should be 7 to 9 mm (9/32
to 11/32 in), under a load of 10 kg (22 lb).
5. If the tension of the belt is above or below the specified
range, adjust the drive belt tension; refer to
Adjusting
the Tension of the Belt (page 105) .
Adjusting the Tension of the Belt
1. Park the machine on a level surface, stop the engine,
and remove the ignition key.
2. Open the front hood.
3. Loosen the nut and bolt at the pivot point for the
alternator (
Figure 148 ).
Figure 148
1. Adjustment bolt 3. Alternator
2. Nut (alternator pivot point) 4. Bolt (alternator pivot point)
4. Loosen the adjustment bolt on the alternator ( Figure
148 ).
5. Move the alternator away from the engine to increase
the belt tension; move the alternator toward the engine
to decrease the belt tension (
Figure 148 ).
6. Tighten the alternator adjustment bolt ( Figure 148 ).
7. Check the tension of the belt; refer to Checking the
Tension of the Belt (page 105) .
8. If the belt tension is correct, tighten the nut and bolt
at the pivot point for the alternator (
Figure 148 );
otherwise, repeat steps 4 through 7 .
105