Toro 74448 Operator's Manual page 44

Figure 55
1. Measure here from blade
to hard surface
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 56).
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 (Figure 56).
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.
Figure 56
1. Rear chain
2. Rear support arm
3. Bolt
4. Jam Nut
2. Measure at B and C
5. Adjustment bolt
6. Front swivel
7. Front support arm
Adjusting the Front-to-Rear Mower
Pitch
1. Position the right blade front-to-rear (Figure 57).
2. Measure the right blade at the A location, from a
level surface to the cutting edge of the blade tip
(Figure 57).
1. Measure here from blade
to hard surface
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 57).
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 57). 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 56).
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 56).
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.
44
Figure 57
2. Measure at A and B