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Sharpening the Blades
1. Use a file to sharpen the cutting edge at both ends of
the blade (Fig. 43). Maintain the original angle. The
blade retains its balance if the same amount of
material is removed from both cutting edges.
1
Figure 43
1. Sharpen at original angle
2. Check the balance of the blade by putting it on a blade
balancer (Fig. 44). 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
(Fig. 42).
the sail area only
until the blade is balanced.
1
Figure 44
1. Blade
Installing the Blades
1. Install the blade onto the spindle shaft
Important
The sail part of the blade must be pointing
upward, toward the inside of the mower to ensure proper
(Fig. 42).
cutting
2. Install the washer, lock washer and blade bolt
(Fig. 42).
Torque the blade bolt to 85–110 ft-lb
(115–140 N m).
Correcting Cutting Unit
Mismatch
If one deck blade cuts lower than the other, correct as
follows.
Tire air pressure is critical in these procedures.
Note:
Make sure all tires have correct pressure.
1. Stop the engine, remove the key and disconnect the
spark plug wire(s) from the spark plug(s).
m–1854
Repeat this procedure
2
m–1855
2. Balancer
(Fig. 42).
32
2. Adjust the tire pressure in all tires to specifications on
page 28.
3. Check that the blades and spindle shafts are not bent.
Refer to Checking for Bent Blades on page 31.
4. Set the height-of-cut to the 4 in. position. Refer to
Adjusting the Height-Of-Cut in the Operation section.
5. Perform steps in the following sections Frame Set Up,
Checking Front–to–Rear Pitch and Checking
Side–to–Side Leveling.
Frame Set Up
Checking Carrier Frame and Deck
Alignment
1. Stop the engine, remove the key and disconnect the
spark plug wire(s) from the spark plug(s).
2. Place a long straight edge on top of the engine deck as
shown in figure 45.
3. At the carrier frame cross tube, measure location "A"
height (Fig. 45). This measurement must be 2–13/16
in., plus or minus a 1/4 in.
4. If the height at location "A" is not correct, adjustment
is needed.
5. Loosen the carrier frame mounting bolts on both sides
of the machine (Fig. 45).
6. Align the carrier frame and engine deck to match
2–13/16 in., plus or minus a 1/4 in. at location "A"
(Fig. 45).
7. Tighten the carrier frame mounting bolts on both sides
of the machine.
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