Adjusting Drive Chain - Toro 07052 Operator's Manual

Jackshaft Belt
(Model 07050 only)
1. Check tension by depressing belt at mid span of
jackshaft and clutch pulleys with 4 to 5 lbs. of force.
Belt should deflect .25 in. If deflection is incorrect,
proceed to next step. If correct, continue operation.
2. To adjust belt tension:
Remove (4) capscrews, washers and nuts securing
upper shroud to frame (Fig. 35).
If belt has too much slack, loosen idler pulley nut, press
forward on idler pulley until desired tension is obtained
and retighten idler pulley nut.
If belt is too tight, loosen idler pulley nut, pull rearward
on idler pulley until desired tension is obtained and
retighten idler pulley nut.
Reel Drive Belt
1. Check tension by depressing belt at mid span of idler
pulley and reel driver pulley with 25–29 lbs. of force.
Belt should deflect .25 in. If deflection is incorrect,
proceed to next step. If correct, continue operation.
2. To adjust belt tension:
Remove (2) capscrews, nut, retaining nut and washer
securing lower belt guard to frame (Fig. 39). Remove
guard.
Figure 39
1. Lower belt guard
If belt has too much slack, loosen idler pulley nut
(Fig. 40), press down on idler pulley until desired
tension is obtained and retighten idler pulley nut.
If belt is too tight, loosen idler pulley nut (Fig. 40), pull
upward on idler pulley until desired tension is obtained
and retighten idler pulley nut.
Reinstall guard. Make sure there is clearance between
belt and belt guard.
1
1. Reel drive belt

Adjusting Drive Chain

(Model 07052 only)
1. Check tension by pressing side of chain at mid span of
upper and lower drive sprockets with 10 lbs. of force.
Chain should deflect .10 in. in each direction from
center (.20 total deflection from side to side). If
deflection is incorrect, proceed to next step. If correct,
continue operation.
2. To adjust drive chain tension:
Remove idler sprocket mounting capscrew.
Add or delete spacers behind idler sprocket until upper
drive sprocket and lower drive sprocket properly
aligned.
1
1. Drive chain
2. Idler sprocket
24
2
Figure 40
2. Idler pulley
3
2
4
Figure 41
3. Upper drive sprocket
4. Lower driven sprocket
1