Toro 30632 Operator's Manual page 34

32in and 36in Mower Deck
1. Mower belt with 1/2 inch
(13 mm) deflection
6. Tighten the locknut on the turnbuckle.
7. Check the blade brake adjustment; refer to Adjusting
the Blade Brake.
Adjusting the Tension for 48in Mower
Decks
Important: The belt must be tight enough to not
slip during heavy loads while cutting grass. Over
tensioning the belt will reduce the spindle bearing
life, the belt life and the idler pulley life.
Important: The brake needs to be adjusted when
the belt tension or the brake linkage is adjusted.
1. Disengage the blade control (PTO) lever and set the
parking brakes.
2. Stop the engine and wait for all moving parts to stop
before leaving the operating position.
3. Loosen the locknut on the turnbuckle (Figure 43).
4. Rotate the turnbuckle toward the rear of the
mower to increase the tension on the belt. Rotate
the turnbuckle toward the front of the mower to
decrease the tension on the belt (Figure 43).
Note: The proper mower belt tension is 10-15 ft-lb.
(44-67 N) with the belt deflected 1/2 inch (13 mm)
halfway between the pulleys (Figure 42).
Figure 41
2. Idler pulley
48in Mower Deck
1. Mower belt with 1/2 inch
(13 mm) deflection
Note: The eyebolt threads on both ends of the
turnbuckle should be engaged a minimum of
5/16 inch (8 mm).
1. 1/2 inch (13 mm) deflection
here
2. Assist arm
3. Front stop
5. Engage the bladed control lever (PTO) and check
the belt tension.
34
Figure 42
2. Idler pulley
Figure 43
4. Locknut
5. Turnbuckle