Belt Maintenance; Adjusting The Drive-Belt Tension; Replacing The Drive Belt - Toro 22615 Operator's Manual

Belt Maintenance

Adjusting the Drive-Belt
Tension
Service Interval: Before each use or daily
Note: Inspect the drive belt through the slot on top of the
belt cover. Adjust as required.
1. Remove the bolts and washers securing the belt guard
to machine.
2. Remove the belt guard
Figure 17
1. Bolts and washers
3. Loosen the 4 engine plate mounting bolts and the 4
bolts securing the rear of the belt guard to the engine.
4. Loosen the belt-tension bolt and jam nut, slide the
engine toward the flywheel housing to loosen belt
(Figure 18).
Figure 18
1. Tension bolt and jam
5. Adjust the drive belt tension by tightening tension bolt
and jam nut against the engine mounting plate, pushing
the engine rearward.
(Figure 17).
G017432
2. Belt guard
G016617
2. Engine plate mounting bolt
6. Lay a straightedge across clutch and flywheel pulleys,
tighten belt-tension bolt so there is 1 cm (0.40 inch) of
flex in the belt when pushing down with 6.8 kg (15 lb)
force, at mid-span (when re-tensioning a belt in use)
or with 8 kg (18 lb) force when installing a new belt
(Figure 19).
1. Straightedge
7. Ensure that the pulleys are aligned and the engine is
parallel with the frame (not angled toward the side),
then tighten the 4 engine plate mounting bolts and the
4 bolts securing the rear of the belt guard to the engine.
8. Install the belt guard and secure it with the previously
removed washers and bolts.

Replacing the Drive Belt

Service Interval: Every 100 hours
Note: Replace the belt if it shows any signs of wear, cracks,
glazing, or damage.
1. Remove the bolts and washers securing the belt guard
to machine.
2. Remove the belt guard
3. Loosen the 4 engine plate mounting bolts and the 4
bolts securing the rear of the belt guard to the engine.
4. Loosen the belt-tension bolt and jam nut, slide the
engine toward the flywheel housing to loosen belt
(Figure 18).
5. Replace drive belt.
6. Adjust tension of new belt to 7.6 to 8.4 kg (17.1 to
18.9 lb) force and 10 mm (0.40 inch) belt deflection
at mid-span.
7. Tighten the 4 engine plate mounting bolts and the 4
bolts securing the rear of the belt guard to the engine.
8. Install the belt guard and secure it with the previously
removed washers and bolts.
17
Figure 19
2. Flex of 1 cm (0.40 inch)
(Figure 17).
G017434