Replacing The Blade Drive Belt; Adjusting The Blade Brakes; Leveling The Mower From Side-To-Side - Toro 71228 Operator's Manual

Danger
Open holes in the mower expose you and others to
thrown debris which could cause injury.
Never operate mower without hardware
mounted in all holes in mower.
Install hardware in mounting holes when
recycling baffle is removed.

Replacing the Blade Drive Belt

Removing the Blade Drive Belt
1. Remove the mower; refer to Removing the Mower on
page 31.
2. Remove the pulley cover mounting screws and pulley
covers from both blade pulleys (Fig. 48).
4
1
3
2
Figure 48
Top View
1. Pulley cover screw
2. Pulley cover
3. Loosen, but do not remove, the idler pulley mounting
bolts (Fig. 48).
4. Move the belt guides and remove the belt from the
pulleys (Fig. 48).
Installing the Blade Drive Belt
1. Install the new belt around the blade pulleys and the
idler pulleys.
2. Adjust the belt guide on the idler pulley as shown and
tighten the mounting bolt (Fig. 48).
3. Install the left and right pulley covers with the
mounting screws (Fig. 48).
4. Install the mower; refer to Installing the Mower on
page 33.
2
1803
3. Belt Guides
4. Mower belt
36

Adjusting the Blade Brakes

1. Engage the blade control (PTO) lever.
2. Adjust the blade control (PTO) cable to the correct the
engaged dimension; refer to Installing the Mower on
page 33.
3. Use a feeler gage to measure between the bottom flange
of the 3 blade pulleys and the brake pads (Fig. 49).
3
1
Figure 49
1. Bottom flange
2. Brake pad
3. Locknut
4. Adjust the locknut on the brake rods to obtain the
proper clearance of 0.02 to 0.06 in. (0.5 to 1.5 mm)
(Fig. 49).
5. Disengage the blades (PTO).
6. Ensure that the blade brake pads contact the pulleys, the
actuating rods are loose when you disengage the blades
(PTO), and the brake pads are away from the pulleys
when you engage the blades (PTO).
Leveling the Mower from
Side-to-Side
The mower blades must be level from side to side. Check
the side-to-side level any time you install the mower or
when you see an uneven cut on your lawn. Before you level
the mower, set the air pressure in the front and rear tires to
the recommended inflation; refer to Checking the Tire
Pressure on page 26.
1. Park the tractor on a level surface.
2. Disengage the blades (PTO).
3. Set the parking brake.
4. Stop the engine and wait for all moving parts to stop.
5. Remove the ignition key.
6. Disconnect the wire from the spark plug.
7. Move the height-of-cut lever into the C notch.
2
4
2270
4. 0.02 to 0.06 in.
(0.5 to 1.5 mm) clearance