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Removing the Blade
Grasp the end of the blade using a rag or thickly padded
glove. Remove the blade bolt, the lock washer, the
accelerator, and the blade (Fig. 20).
POTENTIAL HAZARD
A worn or damaged blade could break and a
piece of blade could be thrown into operator's
or bystander's area.
WHAT CAN HAPPEN
A thrown piece of blade could cause serious
personal injury or death to operator or
bystanders.
HOW TO AVOID THE HAZARD
Inspect blade periodically for wear or damage.
Replace a worn or damaged blade.
Sharpening the Blade
File the top side of the blade to maintain its original
cutting angle (Fig. 22). The blade will remain balanced if
you remove the same amount of material from both
cutting edges.
1
Figure 22
1. Sharpen at this angle only
IMPORTANT:
Check the balance of the blade by
putting it on a blade balancer. You can buy an
inexpensive balancer at a hardware store. A balanced
blade is level horizontally, while an unbalanced blade
drops toward the heavy side. If the blade is not
balanced, file more metal off of the cutting edge on the
heavy end of the blade.
Installing the Blade
1. Install a sharp, balanced Toro blade, an accelerator, a
lock washer and a blade bolt. The blade's sail must
point toward the top of the lawn mower housing for
proper installation. Torque the blade bolt to 50 ft-lb
(68 N m).
2. Return the lawn mower to its upright position.
3. Install the wire onto the spark plug.
Adjusting the Self-propelled
Drive Cable
If the top speed begins to slow on the lawn mower, adjust
the self-propelled drive cable.
1. With the engine turned off, remove the two bolts that
secure the belt cover (Fig. 26).
2. Remove the cover.
3. Loosen the cable support nut (Fig. 23).
1. Cable jacket
2. Cable support
4. Push the drive bracket down until it contacts the lawn
mower, then hold it in place (Fig. 24).
153
1. Drive bracket
5. With the upper handle pulled and held back as far as
possible and while holding the drive bracket down,
pull the cable jacket down (toward the lawn mower) to
remove all the slack in the cable (Fig. 23).
6. Tighten the nut on the cable support (Fig. 23).
7. Release the drive bracket.
8. Install the belt cover.
Lubricating the Wheels
After every 25 operating hours or at the end of the season,
lubricate the front and the rear wheels.
1. Apply two or three drops of light oil on the inside of
the front wheels and the outside of all the wheel bolts.
19
1
2
4
3
Figure 23
3. Nut
4. Upper handle
2
1
Figure 24
2. Push here
m–4205
m–4273
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