Replacing The Drive Belt - Toro SGR-13 Original Instructions Manual

Figure 25
1. Bolt
6. Loosen the belt-tension bolt and jam nut. Slide
the engine toward the flywheel housing to loosen
the belt (Figure 26).
Figure 26
1. Tension bolt and jam
7. Adjust the drive-belt tension by tightening
tension bolt and jam nut against the engine
mounting plate, pushing the engine rearward.
8. Lay a straightedge across the clutch and
flywheel pulleys. Tighten the belt-tension bolt
so that there is 10 mm (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 27).
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2. Engine plate mounting bolt
1. Straightedge
9. 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.
10. Install the belt guard and tighten the bolts
(Figure 24).

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. Park the machine on a level surface and engage
the parking brake.
2. Shut off the engine and wait for all moving parts
to stop.
3. Loosen the bolts securing the belt guard to
machine until you can remove the belt guard.
4. Remove the belt guard
5. Loosen the 4 engine-plate mounting bolts and
the 2 bolts securing the rear of the belt guard to
the engine (Figure 25
6. Loosen the belt tension bolt and jam nut and
slide the engine toward the flywheel housing to
loosen the belt
7. Replace the drive belt.
8. Adjust the tension of the new belt to 8 kg (18
lb) force and 10 mm (0.40 inch) belt deflection
at mid-span; refer to
Tension (page
9. Tighten the 4 engine-plate mounting bolts and
the 4 bolts securing the rear of the belt guard
to the engine.
10. Install the belt guard and secure it with the
previously removed washers and bolts.
19
Figure 27
2. Flex of 1 cm (0.40 inch)
(Figure 24).
and Figure 26).
(Figure 26).
Adjusting the Drive-Belt
18).
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