2. Measure the right blade at the
B
location, from a
level surface to the cutting edge of the blade tip
(Figure 81).
3. Record this measurement. This measurement needs
to be 3-1/8 to 3-1/4 inches.
4. Position the left blade side-to-side (Figure 81).
5. Measure the left blade at the
C
location (Figure 81),
from a level surface to the cutting edge of the blade
tip.
6. Record this measurement. This measurement needs
to be 3-1/8 to 3-1/4 inches (80 to 83 mm).
7. If the measurements at positions
B
or
C
are not
correct, loosen the bolt attaching the rear chain to
the rear support arm (Figure 82).
Figure 82
1.
Rear chain
5.
Adjustment bolt
2.
Rear support arm
6.
Front swivel
3.
Bolt
7.
Front support arm
4.
Jam Nut
8. Loosen the jam nut under the rear support arm and
adjust the adjustment bolt to get a measurement of
3-1/8 to 3-1/4 inches (80 to 83 mm) (Figure 82).
Note:
It is recommended that both sides of the
mower are adjusted the same distance.
9. Tighten the jam nut under the rear support arm
and tighten the bolt securing the chain to the rear
support arm.
10. Adjust the opposite side if needed.
Adjusting the Front-to-Rear Mower
Pitch
1. Position the right blade front-to-rear (Figure 83).
2. Measure the right blade at the
A
location, from a
level surface to the cutting edge of the blade tip
(Figure 83).
Figure 83
1.
Measure here from blade
to hard surface
2.
Measure at A and B
3. Record this measurement.
4. Measure the right blade at the
B
location, from a
level surface to the cutting edge of the blade tip
(Figure 83).
5. Record this measurement.
6. The mower blade should be a 1/4 to 3/8 inch
(6 to 10 mm) lower at position
A
than at position
B
(Figure 83). If it is not correct, proceed to the
following steps.
Note:
Both of the front swivels need to be adjusted
the same amount to maintain equal chain tension.
7. Loosen the front swivel jam nuts, at the front of
the right and left swivels, approximately a 1/2 inch
(13 mm) (Figure 82).
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
(Figure 82).
9. Tighten both swivel jam nuts against the front swivel
to lock the height.
10. Check to make sure 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.
2. Check the distance between the two large washers,
it needs to be 10-1/2 inches (26.7 cm) for 60 inch
mower decks or 11–1/2 inches (29.2 cm) for 72 inch
mower decks (Figure 84).
3. Adjust this distance, by loosening the spring jam
nut and turning the nut in front of each spring
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