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9
5
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6
Figure 62
1. Bottom chain bolt
2. Top chain bolt
3. Front swivel
4. 10-1/4 in. (260 mm) spring
compressed
Note: When hardware is loose, deck will rotate the lift
handle up out of position.
8. When hardware is loosened, remaining tension in the
large support springs will tend to rotate the deck lift
handle up, out of the 1-1/2 in. (38 mm) position. Press
down on the rear deck support arm to firmly return the
deck lift handle to the 1-1/2 in. (38 mm) position
(Fig. 62).
Note: Do not push on deck lift handle.
9. While continuing to press down on rear deck support
arm, take the slack out of the rear chain and tighten
hardware at the bottom (Fig. 62). Downward pressure
may now be released. Repeat for opposite side.
10. Adjust front swivel using rear locking nut until the
front chain is tight and front of deck is still touching
block. Tighten front locking nut. Repeat for opposite
side.
11. Recheck that blocks fit just snuggly under the mower
and that tension on all four chains are approximately
equal.
12. Raise deck to 3 inch height of cut and measure actual
height from blade tips to ground. Height of cut for the
front blade tips should be 3.00 .125 in. (76 3 mm).
Height of cut for rear blade tips should be
3.25 .125 in. (83 3 mm). Readjust if needed.
Note: When checking blade tip heights make sure blades
are not bent and check blade pointing front to rear.
13. Install anti-scalp rollers for proper height-of-cut and
tighten securely. See Adjusting Anti Scalp Rollers on
page 26.
14. Raise deck lift lever to the transport position (Fig. 61).
15. Adjust compression springs by turning the front spring
nuts so the distance between the two large washers is
10-1/4 (260 mm). Then tighten jam nut (Fig. 62).
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m–4116
5. Rear locking nut
6. Front locking nut
7. Rear deck support arm
8. Front spring nut
9. Jam nut
Note: Make sure all hardware is tight.
Adjusting the Push Arms
1. To adjust push arms, loosen jam nut and rotate ball
joint counterclockwise, one turn at a time. (Fig. 63).
2. Adjust each side the same amount. Each push arm
should have a nominal length of 15-5/16 in. (389 mm)
(Fig. 63).
Note: Increase tension by lengthening the push arms and
decrease tension by shortening push arms.
3
1
Figure 63
1. Push arm
2. 15-5/16 in. (389 mm)
nominal
Cleaning Under the Deck
Remove grass build up under deck daily.
1. Position mower on a flat surface. Stop the engine, set
the parking brake, remove the key and disconnect the
spark plug wires from the spark plugs.
2. Raise deck to the transport position.
3. Lift the front of unit and support unit using jack
stands.
Danger
Mechanical or hydraulic jacks may fail to support
machine and cause a serious injury.
Use jack stand when supporting machine.
Do not use hydraulic jacks.
Inspecting the Belts
Inspect all belts every 100 hours.
1. Check belts for cracks, frayed edges, burn marks or
any other damage. Replace damaged belts.
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m–3740
3. Jam nut
4. Ball joint
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