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2. Drain gasoline from fuel tank; refer to Draining
Gasoline, page 16.
3. Tip mower on its right side (Fig.27). Avoid rotating
blade. Starting problems may result.
1
3
Figure 27
1. Blade
2. Blade bolt and lockwasher
4. INSPECTING BLADE—Carefully examine blade for
sharpness and wear, especially where flat and curved
parts meet (Fig. 28A). Since sand and abrasive
material can wear away the metal that connects the flat
and curved parts of the blade, check blade before using
the mower. If a slot or wear is noticed, (Fig. 28B & C),
replace blade. Refer to step 5.
Note: For best performance, install new blade before
cutting season begins. During the year, file down small
nicks to maintain the cutting edge.
DANGER
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.
2
757
3. Blade accelerator
5. REMOVING BLADE—Grasp end of blade using a rag
or thickly padded glove. Remove blade bolt,
lockwasher, blade accelerator and blade (Fig. 27).
Figure 28
1. Sail
2. Flat part of blade
6. SHARPENING BLADE—Using a file, sharpen top
side of blade and maintain original cutting angle
(Fig. 29). The blade will remain balanced if same
amount of material is removed from both cutting
edges.
Figure 29
1. Sharpen at this angle only
IMPORTANT: Check balance of blade by putting it on
a blade balancer. An inexpensive balancer can be
purchased at a hardware store. A balanced blade stays
in a horizontal position and an unbalanced blade settles
to the heavy side. If blade is not balanced, file more
metal off cutting edge on heavy end of blade.
7. Install sharp, balanced blade, blade accelerator,
lockwasher and blade bolt. Sail part of blade must
point toward top of mower housing to ensure correct
installation. Tighten blade bolt to 68 N m (50 ft–lb).
19
1
2
3
4
270
3. Wear
4. Slot formed
1
153
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