Toro 04021 - Traction Drive Belt

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3. To adjust belt tension:
A. Loosen the bearing housing mounting nuts
(Fig. 38).
1
2
Figure 42
1. Reel drive belt 2. Bearing housing mounting
nuts
B. Using a 3/8 in. drive torque wrench, rotate the
bearing housing with 35–40 in.-lb. of torque to set
belt tension (Fig. 39).
2
1
Figure 43
1. Bearing housing 2. 3/8” Torque wrench here
C. Tighten the bearing housing mounting nuts
(Fig. 38). Do not over-tension belt.
D. Install belt cover.
Traction Drive Belt
1. Remove belt cover mounting fasteners and belt cover
to expose belt (Fig. 44).
1
Figure 44
1. Traction drive belt cover
2. Check tension by depressing belt (Fig. 45) at mid span
of pulleys with 4 ± 1 lb. of force. Belt should deflect
1/4 in. If deflection is incorrect, proceed to next step.
1
Figure 45
1. Traction drive belt
3. To adjust belt tension:
A. On back side of side plate, loosen the capscrew
securing the idler bracket to the side plate
(Fig. 46).