Correcting The Mower Quality Of Cut; Frame Set Up - Toro 30070 Operator's Manual

2. Remove the blade bolt, curved washer, blade stiffener,
and blade from the spindle shaft (Figure 49).
Figure 49
1. Sail Area of Blade
2. Blade
3. Blade stiffener
Sharpening the Blades
1. Use a file to sharpen the cutting edge at both ends of
the blade (Figure 50). Maintain the original angle. The
blade retains its balance if the same amount of material
is removed from both cutting edges.
Figure 50
1. Sharpen at original angle
2. Check the balance of the blade by putting it on a blade
balancer (Figure 51). If the blade stays in a horizontal
position, the blade is balanced and can be used. If the
blade is not balanced, file some metal off the end of
the sail area only (Figure 47). Repeat this procedure
until the blade is balanced.
4. Curved washer
5. Blade Bolt
1. Blade
Installing the Blades
1. Install the blade onto the spindle shaft (Figure 49).
Important: The sail part of the blade must be
pointing upward, toward the inside of the mower
to ensure proper cutting (Figure 49).
2. Install the blade, stiffener, curved washer, and blade
bolt (Figure 49).
3. Torque the blade bolt to 85-110 ft-lb (115-140 N-m).
Correcting the Mower Quality
of Cut
If one deck blade cuts lower than the other, correct as follows.
Note: Tire air pressure is critical in these procedures. Make
sure all tires have correct pressure.
1. Disengage the PTO and set the parking brake.
2. Stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position. Disconnect the spark plug wire(s) from the
spark plug(s).
3. Adjust the tire pressure in the rear tires to specifications;
refer to Drive System Maintenance (page 28) .
4. Check that the blades and spindle shafts are not bent.
Refer to Checking for Bent Blades.
5. Set the height-of-cut to the 4 inch (101.6 mm) position.
Refer to Adjusting the Height-Of-Cut in Operation.
6. Perform the steps in the following sections Frame
Set Up, Checking Front-to-Rear Pitch, and Checking
Side-to-Side Leveling.

Frame Set Up

Checking the Carrier Frame and Engine
Deck Alignment
Note: Misalignment can cause excess wear on the PTO
drive belt.
1. Disengage the PTO and set the parking brake.
2. Stop the engine, remove the key, and wait for all moving
parts to stop before leaving the operating position.
3. Place a long straight edge on top of the engine deck as
shown in Figure 52.
36
Figure 51
2. Balancer