Toro 74412 Operator's Manual page 40

2. Measure the right blade at the B location (Fig. 50), from
a level surface to the cutting edge of the blade tip
(Fig. 51).
MEASURE FROM
CUTTING EDGE TO
A LEVEL SURFACE
Figure 51
3. Record this measurement; this measurement must be
3-1/8 to 3-1/4 inches (79 to 83 mm).
4. Position the left blade front to rear (Fig. 50).
5. Measure the left blade at the C location (Fig. 50), from
a level surface to the cutting edge of the blade tip
(Fig. 51).
6. Record this measurement. This measurement must be
3-1/8 to 3-1/4 inches (79 to 83 mm).
7. If the measurements at positions B or C are incorrect,
loosen the bolt that attaches the rear chain to the rear
support arm (Fig. 52).
2
Front
1
3
1
Figure 52
1. Rear chain
2. Rear support arm
3. Bolt
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 (79 to 83 mm).
Note: It is recommended that both sides of the mower are
adjusted the same distance.
m–2539
6
7
2
4
5
5. Adjustment bolt
6. Front swivel
7. Front support arm
40
9. Tighten the jam nut under the rear support arm and
tighten the bolt that secures 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 (Fig. 53).
Front
Figure 53
2. Measure the right blade at the A location (Fig. 53) from
a level surface to the cutting edge of the blade tip
(Fig. 54).
MEASURE FROM
CUTTING EDGE TO
A LEVEL SURFACE
Figure 54
3. Record this measurement.
4. Measure the right blade at the B location (Fig. 53) from
a level surface to the cutting edge of the blade tip
(Fig. 54).
5. Record this measurement.
6. The mower blade should be 1/4 to 3/8 inch
(6 to 10 mm) lower at position A than at position B
(Fig. 53). If it is not correct, go to the following steps.
Note: You must adjust both of the front swivels the same
amount to maintain equal chain tension.
A
B
m–1078
m–2539