Toro 30320, Руководство оператора

Страница: 34 / 48

34
1/8 inch (3 mm), the blade is bent and must be
replaced. Refer to Removing the Blades, and Installing
the Blades on page 34.
A blade that is bent or damaged could break
apart and could seriously injure or kill you or
bystanders.
•
Always replace bent or damaged blade with a
new blade.
•
Never file or create sharp notches in the edges
or surfaces of blade.
Warning
Removing the Blades
Blades must be replaced if a solid object is hit, if the blade
is out of balance or is bent. To ensure optimum
performance and continued safety conformance of the
machine, use genuine TORO replacement blades.
Replacement blades made by other manufacturers may
result in non-conformance with safety standards.
1. Hold the blade end using a rag or thickly-padded
glove. Remove the blade bolt, washer, lock washer and
blade from the spindle shaft (Fig. 45).
1
3
4
2
5
m–5199
6
Figure 45
1. Sail Area of Blade
2. Blade
3. Blade spindle
4. Washer
5. Blade bolt
6. Lock washer
Sharpening the Blades
1. Use a file to sharpen the cutting edge at both ends of
the blade (Fig. 46). Maintain the original angle. The
blade retains its balance if the same amount of
material is removed from both cutting edges.
1
m–1854
Figure 46
1. Sharpen at original angle
2. Check the balance of the blade by putting it on a blade
balancer (Fig. 47). 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
(Fig. 45).
Repeat this procedure
until the blade is balanced.
1
2
m–1855
Figure 47
1. Blade 2. Balancer
Installing the Blades
1. Install the blade onto the spindle shaft
(Fig. 45).
Important The sail part of the blade must be pointing
upward, toward the inside of the mower to ensure proper
cutting
(Fig. 45).
2. Install the lock washer and blade bolt
(Fig. 45).
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 all tires to specifications on
page 30.
4. Check that the blades and spindle shafts are not bent.
Refer to Checking for Bent Blades on page 33.