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3
4
2
Figure 48
1. Idler in slot
2. Belt guide
Replacing the Mower Belt
1. Disengage the PTO, turn the ignition key to off, and
remove the key.
2. Wait for all moving parts to stop before leaving the
operating position and then chock or block tires.
3. Remove the knobs and belt cover on mower.
4. Remove idler pulley and then remove worn belt
(Fig. 49).
5. Install the new belt.
6. Install the idler pulley.
7. Engage PTO and check belt tension. See Adjusting
Mower Belt Tension, page 36.
Note: Proper belt tension is 10–15 lbf. (44–67 N) with the
belt deflected a 1/2 inch (13mm) halfway between pulleys
(Fig. 49).
1
2
m–4726
3. 1-3/8 inch (35 mm)
4. Mower belt
35
Figure 49
1. Idler pulley
2. 1/2 inch (13 mm)
deflection here
8. Engage PTO lever and check the clearance between the
bellcrank and the transmission output shaft (Fig. 50).
Space should be 1/16–1/8 inch (2 mm–3 mm).
9. Remove hairpin cotter and clevis pin from bellcrank.
Rotate clevis clockwise on rod to increase or
counterclockwise to decrease clearance (Fig. 50).
1
4
5
Figure 50
1. 1/16–1/8 inch
(2mm–3mm)
2. Bellcrank
3. Transmission output shaft
10. Disengage the PTO. If the assist arm does not contact
the front stop on the mower deck (Fig. 49), readjust the
clevis to bring the bellcrank closer to the transmission
output shaft (Fig. 50).
11. Check the belt guide under the engine frame for proper
adjustment (Fig. 48). The distance between the belt
guide and mower belt should be 1-3/8 inch (35mm).
Adjust as necessary. The disengaged belt should not
drag or fall off pulley when guides are properly
adjusted.
1
3
4
2
m–4731
3. Assist arm
4. Front stop
3
2
6
m–3860
4. Hairpin cotter
5. Clevis pin
6. Clevis
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