Adjusting Blade Drive Belt; Replacing Traction Drive Belt - Toro 70089 Operator's Manual

Maintenance

Adjusting Blade Drive Belt

1. Set height-of-cut lever in lowest setting and deck
engagement lever to ENGAGE.
2. Remove cotter pin from adjustment rod
(Fig. 27).
3. Rotate adjustment rod until there is 0.060 inch
(1.5 mm) or less between end of slot in
engagement bracket and outer diameter of pin
(Fig. 28).
Note: Adjustment rod is a left hand thread.
Figure 28
1. Engagement bracket
2. .060" max. (1.5 mm)

Replacing Traction Drive Belt

1. Remove cutting unit: refer to
Removing/lnstalling Cutting Unit, page 39.
2. Remove belt guides from transaxle pulley.
Loosen and rotate belt guides at engine pulley
out of the way. Loosen locknut and remove belt
retainer from idler pulley.
Note: To make belt removal easier, set and
lock clutch with parking brake to
remove tension from belt.
3. Remove deck belt from engine pulley (Fig. 26).
4. Remove drive belt. Inspect belt for damage or
wear.
40
2
1
3
3. Pin
5. Install new deck belt if needed.
6. Replace belt guides for transaxle pulley. Install
belt retainer on idler pulley and tighten locknut.
2
7
3
6
5
4
Figure 29
1. Engine pulley
2. Transaxle pulley
3. Idler pulley
4. Transaxle pulley belt
guides
IMPORTANT: Idler retainer must be
installed at an 80 to 90 degree angle to the
idler mounting bracket (Fig. 30) or rider may
creep with clutch pushed down.
Figure 30
1. Idler pulley
7. Install cutting unit: refer to Removing/lnstalling
Cutting Unit, page 39.
1
5
4
(Deck belt already
removed in this picture)
5. Engine pulley belt guides
6. Belt retainer and locknut
7. Drive belt
2. Idler mounting bracket