44
7. Loosen the front swivel jam nuts, at the front of the
right and left swivels, approximately 1/2 inch (13 mm)
(Fig. 54).
Front
2
1
3
4
5
7
6
8
8
m–7704
Figure 54
1.
10-1/2 inch (267 mm)
between the large
washers
2.
Front nut
3.
Spring jam nut
4.
Front swivel
5.
Swivel jam nut
6.
Lift nut
7.
Front support arm
8.
Large washer
8. Adjust the lift nuts on both the left and the right side of
the machine to achieve 1/4 to 3/8 inch (6 to 10 mm)
lower in front at A than in the rear at B (Fig. 54).
9. Tighten both swivel jam nuts against the front swivel to
lock the height.
10. Check to ensure that there is equal tension on the chains
and adjust again if needed.
Adjusting the Compression Spring
1. Raise the mower lift lever to the transport position
(Fig. 54).
2. Check the distance between the 2 large washers; it must
be 10-1/4 inches (26 cm) (Fig. 54).
3. Adjust this distance by loosening the spring jam nut and
turning the nut in front of each spring (Fig. 54).
Note: Turning the nut clockwise shortens the spring;
turning the nut counterclockwise lengthens the spring.
4. Lock the nut into position by tightening the spring jam
nut (Fig. 54).
Adjusting the Push Arms
If needed, adjust the push arms to increase or decrease the
mower belt tension.
1. Loosen the jam nut and rotate the ball joint
counterclockwise, one turn at a time.(Fig. 55).
4
3
2
1
m–7705
Figure 55
1.
Push arm
2.
13-1/2 inch (343 mm)
nominal at 15
°
twist
3.
Jam nut
4.
Ball joint
2. Adjust each side the same amount. Each push arm
should have a nominal length of 13-1/2 inch (34 cm) at
a 15-degree twist (Fig. 55).
Note: Increase the tension by lengthening the push arms;
decrease the tension by shortening the push arms.
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.
