Service Manual

Mid-Size Walk Behind Service Manual 7 - 9
MOWER DECKS
7. Engage the blade control (PTO) lever and check
the belt tension. Refer to "Adjusting Mower Belt
Tension (Fixed Deck) - All" on page 7 - 16.
Note: Mower belt tension is 10 - 15 ft. lb. 14 - 20 N-m)
with the belt deflected 1/2 in. (13mm) halfway between
the pulleys (Figure 165).
Figure 165
m-4750
8. Check the clearance between the bell crank and
the transmission output shaft (Figure 166).
Figure 166
m-3860
Note: The clearance should be 1/16 - 1/8 in. (2 -
3mm). Adjust clevis as needed to achieve specified
clearance.
Replacing the Mower Belt (Fixed
Deck) 32 in. (81cm)
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. Remove the knobs and the belt cover on the
mower.
4. Remove the idler pulley and the worn belt (Figure
167).
5. Install the new mower belt.
6. Install the idler pulley.
7. Engage the blade control (PTO) lever and check
the belt tension. Refer to "Adjusting Mower Belt
Tension (Fixed Deck) - All" on page 7 - 16.
Note: The proper mower belt tension is 10 - 15 lbs. (44
- 67 N-m) with the belt deflected 1/2 inch (13mm)
halfway between the pulleys (Figure 167).
Figure 167
m-4750
(1) Mower belt with 1/2 in.
(13mm) deflection
(2) Idler pulley
(1) 1/16 - 1/8 in. (2 - 3mm)
(2) Bell crank
(3) Transmission output shaft
(4) Hairpin cotter
(5) Clevis pin
(6) Clevis
(1) Mower belt with 1/2 inch
(13mm) deflection
(2) Idler pulley