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Figure 48
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. 49).
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. 49).
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4
5
Figure 49
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. 48), readjust the
clevis to bring the bellcrank closer to the transmission
output shaft (Fig. 49).
11. Check the belt guide under the engine frame for proper
adjustment (Fig. 47). 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.
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3
4
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3. Assist arm
4. Front stop
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2
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4. Hairpin cotter
5. Clevis pin
6. Clevis
Adjusting the Mower Belt
Tension
Service Interval/Specification
Check belt tension after the first 8 and 25 hours of
operation. Check the belt tension every 50 hours.
Important
Belt must be tight enough to not slip during
heavy loads while cutting grass. Over tensioning will
reduce belt and spindle bearing life.
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. Loosen locknut on turnbuckle (Fig. 50).
4. Rotate turnbuckle toward rear of mower to increase
tension on belt. Rotate turnbuckle toward front of
mower to decrease tension on belt (Fig. 50).
Note: The eyebolt threads on both ends of the turnbuckle
should be engaged a minimum of 5/16 inch (8mm).
3
4
5
Figure 50
1. Locknut
2. Turnbuckle
3. Rear idler pulley
5. If the belt is still loose after making adjustments to the
turnbuckle, reposition the rear idler pulley to the front
hole. The belt guide next to the pulley must also be
moved to the front hole (Fig. 50).
6. Readjust the turnbuckle.
Adjusting the Blade Brake
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.
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4. Front position for idler
pulley
5. Belt guide
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