Checking The Belt Tension - Toro 02835 Operator's Manual

Checking the Belt Tension

Service Interval: Every 250 hours
1. Park the machine on a level surface, lower the
cutting unit, engage the parking brake, shut off
the engine, and remove the key.
2. Loosen the 4 captive bolts that secure the top
and bottom of the belt cover to the machine
(Figure 26).
Figure 26
1. Belt cover captive bolts
Figure 27
1. Idler pulley nut
3. Loosen, but do not remove, the idler pulley nut
(Figure 27).
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2. Idler pulley post nut
Note:
To loosen the idler pulley nut, you will
need to hold the bolt that secures it in place on
the inside of the deck.
4. Adjust the nut on the idler pulley post to tension
the belt (Figure
5. Using a single-barrel tension meter, push down
on the belt to check the tension as follows
(Figure 28):
•
For a new belt, you should be able to push
the belt down 5 mm (1/5 inch) using 6.0 to
6.4 kg (13.2 to 14.1 lb) of force.
•
For a used belt, you should be able to push
the belt down 5 mm (1/5 inch) using 5.1 to
5.6 kg (11.2 to 12.3 lb) of force.
1. Belt without force
6. Adjust the nut on the idler pulley post as
necessary to tighten or loosen the belt.
7. Rotate the rotor manually a couple of turns and
check the belt tension again; if the tension is
incorrect, check and adjust until it is correct.
8. Tighten the idler pulley nut; torque to 100 N∙m
(74 ft-lb).
9. Install the belt cover
24
27).
Figure 28
2. Belt deflected 5 mm (0.2
inches)
(Figure 26).
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