Toro 74255 Operator's Manual page 49

Front
2
1
3
1
Figure 69
1. Rear chain
2. Rear support arm
3. Bolt
4. Jam Nut
Adjusting the Front–to–Rear Mower Pitch
1. Position the right blade front-to-rear (Fig. 70).
2. Measure the right blade at the A location (Fig. 70),
from a level surface to the cutting edge of the blade tip
(Fig. 71).
Figure 70
6
2
7
4
5
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5. Adjustment bolt
6. Front swivel
7. Front support arm
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49
MEASURE FROM
CUTTING EDGE TO
A LEVEL SURFACE
Figure 71
3. Record this measurement.
4. Measure the right blade at the B location (Fig. 70),
from a level surface to the cutting edge of the blade tip
(Fig. 71).
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
(Fig. 70). 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) (Fig. 72).
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. 72).
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
(Fig. 16).
2. Check the distance between the two large washers, it
needs to be 10–1/2 inches (26.7 cm) (Fig. 72).
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