Toro 22043, Руководство оператора

Страница: 15 / 24

15
CAUTION
POTENTIAL HAZARD
•
Engine could start accidentally.
WHAT CAN HAPPEN
•
Accidental starting of engine could cause
serious injury to operator or bystanders.
HOW TO AVOID THE HAZARD
•
Do not attempt to inspect, remove or replace
blade without first removing the spark plug
wire from spark plug and fastening it away
from accidental contact with spark plug.
4. INSPECTING BLADE—Carefully examine blade for
sharpness and wear, especially where flat and curved
parts meet (Fig. 23A). 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. 23B & C),
replace blade. Refer to step 5.
270
1
2
3
4
1
1
Figure 23
1. Sail
2. Flat part of blade
3. Wear
4. Slot formed
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.
5. REMOVING BLADE—Grasp end of blade using a rag
or thickly padded glove. Remove blade nuts,
anti–scalp cup, accelerator, and blade (Fig. 22).
6. SHARPENING BLADE—Using a file, sharpen top
side of blade and maintain original cutting angle
(Fig. 24). The blade will remain balanced if same
amount of material is removed from both cutting
edges.
153
1
Figure 24
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. Reinstall sharp, balanced blade, accelerator, anti-scalp
cup, and blade nuts. Sail part of blade must point
toward top of mower housing to ensure correct
installation. Tighten blade nuts to 15–27 ft–lb
(20–37 N
m).
WARNING
POTENTIAL HAZARD
•
Operating mower without accelerator in place
could cause blade to flex, bend or break.
WHAT CAN HAPPEN
•
A broken blade could cause serious injury or
death to operator or bystanders.
HOW TO AVOID THE HAZARD
•
Do not operate mower without accelerator.