Adjusting The Height-Of-Cut - Toro 30518 Operator's Manual

Adjusting the Height-of-Cut

This machine has a 1 to 4-1/4 inch (26 to 108 mm) range
for the height-of-cut. This can be achieved by adjusting
blade spacers, rear axle height, and front caster spacers.
Use the Height-of-Cut Chart on page 24 to select the
combination required.
Adjusting the Blade Height
Adjust the blades by using the 4 spacers (1/4 inch) on the
blade spindle bolts. This allows a range, in 1/4 inch (6 mm)
increments, of cutting height in any axle position. Use the
same number of blade spacers on all blades to achieve a
level cut (2 above and 2 below, 1 above and 3 below, etc.).
1. Disengage the blade control (PTO) lever and set the
parking brakes.
2. Stop the engine and wait for all moving parts to stop
before leaving the operating position.
3. Hold the blade bolt and remove the nut (Fig. 19).
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1
2
Figure 19
1. Blade
2. Blade bolt
3. Cone washer
4. Slide the bolt down through the spindle, and change the
spacers as needed (Fig. 19).
5. Insert a bolt, add extra spacer(s), and secure them with a
thin washer and a nut (Fig. 19).
6. Torque the blade bolt to 75–80 ft-lb (101–108 NSm).
6
5
4
3
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4. Spacer
5. Thin washer
6. Nut
Adjusting the Axle Height
You can obtain the desired height-of-cut range by adjusting
the rear axle and placing the caster spacers above or below
the caster arm (refer to the Height-of-Cut Chart, page ).
1. Disengage the blade control (PTO) lever and set the
parking brakes.
2. Stop the engine and wait for all moving parts to stop
before leaving the operating position.
3. Loosen, but do not remove, the 2 axle pivot bolts and
the 2 axle adjustment bolts (Fig. 20).
1
2
Figure 20
1. Axle pivot bolt
4. Place a jack under the rear center of the engine frame.
Raise the back end of the engine frame up enough to
remove the front 2 axle adjustment bolts (Fig. 20).
5. Raise or lower the engine frame with the jack so that
you can install the front 2 axle adjustment bolts in the
desired hole location (Fig. 20).
Note: Use a tapered punch to help align the holes.
6. Tighten all 4 bolts and lower the mower.
7. Adjust the control rods and the brake linkages as
required. Refer to Servicing the Brakes, page 32 and
Installing the Control Rods, page 14.
Important You must adjust the control rods and the
brake linkage when you change the axle positions for
proper traction and brake function.
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A
B
C
D
E
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2. Axle adjustment bolt