Belt Maintenance; Servicing The Drive Belts; Checking The Drive-Belt Tension; Adjusting The Drive-Belt Tension - Toro CM-658H-S Operator's Manual

Belt Maintenance

Servicing the Drive Belts

Service Interval: Every 20 hours—Inspect the drive-belt
tension and adjust it as necessary. Replace
the drive belts if they show any signs of
wear, cracks, glazing, or damage.
Checking the Drive-belt
Tension
The drive belts should each have 1 cm (13/32 inch) of flex
when applying 6.8 kg (15 lb) of pressure, at mid-span (Figure
53).
Figure 53
Drive Belts
1. Flex of 1 cm (13/32 inch)
1. Remove the divider plate; refer to Removing the
Divider Plate (page 28).
2. Lay a straightedge along one of the drive belts, from
one pulley to the other (Figure 53).
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2. Straightedge
3. With your finger, push on the belt with 6.8 kg (15 lb)
of pressure, midway between the pulleys (Figure 53).
4. Measure the distance from the belt to the straightedge.
The distance should be approximately 1 cm (13/32
inch); refer to Figure 53. If the belt tension needs
adjustment, refer to Adjusting the Drive-belt Tension
(page 35).
5. Install the divider plate; refer to Installing the Divider
Plate (page 28).
Adjusting the Drive-belt
Tension
1. Stop the engine and wait for all moving parts to stop.
2. Remove the divider plate; refer to Removing the
Divider Plate (page 28).
3. Loosen the 4 nuts and bolts that secure the engine to
the engine mounting plate (Figure 54).
1. Engine mounting nuts and bolts (4 each)
4. Slide the engine left to increase tension on the drive
belt or right to decrease tension.
5. Check the drive-belt tension; refer to Checking the
Drive-belt Tension (page 35).
Note: When the belts have the appropriate amount
of tension, torque the 4 nuts and bolts to 24 N-m (18
ft-lb) each.
6. Install the divider plate; refer to Installing the Divider
Plate (page 28).
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Figure 54
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