Toro 91764SL User Manual
Service and Repairs
Boost Pump Belt Adjustment
Make sure boost pump belt is properly tensioned to as-
sure correct operation of unit and unnecessary wear.
Check belts midway in the span of the belt.
sure correct operation of unit and unnecessary wear.
Check belts midway in the span of the belt.
1. Disengage hood latches and open hood.
2. Check belt tension by depressing belt midway be-
tween pulleys with 3 lb. of force. A used belt should de-
flect .250”. A new belt should deflect .125”.
3. If an adjustment is necessary:
tween pulleys with 3 lb. of force. A used belt should de-
flect .250”. A new belt should deflect .125”.
3. If an adjustment is necessary:
A. Loosen pump bracket mounting bolts (2).
B. Use a pry bar to pull pump towards outside of ma-
chine until proper belt tension is attained, then tight
B. Use a pry bar to pull pump towards outside of ma-
chine until proper belt tension is attained, then tight
-
en pump bracket mounting bolts (2).
1
2
3
Figure 2
1. Boost Pump Belt
2. Pump Bracket
3. Mounting Bolt (2)
2. Pump Bracket
3. Mounting Bolt (2)
Addendum
Page 8 – 14
Rev. B
Hydroject 4000