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Adjusting the Push Arms
If needed, adjust the push arms to increase or decrease the
mower belt tension.
1. To adjust the push arms, loosen the jam nut and rotate
the ball joint counterclockwise, one turn at a
time.(Fig. 55).
2. Adjust each side the same amount. Each push arm
should have a nominal length of 15-5/16 inch (389 mm)
(Fig. 55).
Note: Increase the tension by lengthening the push arms;
decrease the tension by shortening the push arms.
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1
Figure 55
1. Push arm
2. 15-5/16 inch (389 mm)
nominal
Cleaning Under the Mower
Remove grass buildup under the mower housing daily.
1. Position the mower on a flat surface.
2. Disengage the PTO, move the motion control levers to
the neutral locked position, and set the parking brake.
3. Stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
4. Raise the mower housing to the transport position.
5. Lift the front of the machine and support the machine
using jack stands.
Danger
Mechanical or hydraulic jacks may fail to support
machine and cause a serious injury.
Use the jack stand when supporting the
machine.
Do not use hydraulic jacks.
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m–6273
3. Jam nut
4. Ball joint
42
Inspecting the Belts
Inspect all belts every 250 hours.
Check belts for cracks, frayed edges, burn marks, or any
other damage. Replace damaged belts.
Replacing the Mower Belt
The signs of a worn mower belt are squealing while the belt
is rotating, blades slipping while you are cutting grass,
frayed belt edges, burn marks, and cracks. Replace the
mower belt if you detect any of these signs.
1. Disengage the PTO, move the motion control levers to
the neutral locked position, and set the parking brake.
2. Stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
3. Remove the belt covers over the outside spindles.
4. Loosen the outer nut on the spring eye bolt (Fig. 56).
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4
5
6
Figure 56
Top View
1. Outer nut
2. Idler pulley
3. Idler arm
4. Spring eye bolt
5. Remove the belt.
Note: Start at the outside pulley and rotate the belt off
(Fig. 57).
Note: Dot not remove the spring from the eye bolt.
Caution
The spring is under tension when installed and can
cause personal injury.
Do not remove the spring from the spring eye bolt.
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m-4197
5. Spring
6. 9-3/8
1/8 inch
(238
3 mm)
7. Mower belt
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