135-Hour Maintenace
Every 135 hours of operation, remove
and clean the muffler.
WARNING!
Never operate the machine with a damaged or missing
muffler or spark arrester! Operating with missing or damaged exhaust components is a fire hazard and could also damage your hearing.
1. | Remove the spark plug boot. |
2. | Remove the two 4 mm engine cover |
| screws (located at the top of the recoil |
| housing). |
3. | Loosen the 5 mm engine top cover |
| screw (the screw is captive) and lift the |
Rear Muffler |
| Spark Ar- |
|
Shield |
| Forward | |
|
| rester Screen | |
|
| Muffler | |
|
|
| |
|
|
| Shield |
|
|
| 5 mm Muffler |
|
|
| Screws |
|
| 23139 |
|
Rear Muffler |
|
| Lower Muffler |
Shield Screw |
|
| |
|
| Screw | |
Figure 32 | Muffler |
| |
|
| ||
|
|
|
cover from the engine. |
4. Remove the two 5 mm muffler screws. |
Remove the lower muffler screw, then |
lift the muffler assembly from the |
engine. |
Long Term Storage
Whenever the unit will not be used for 30 days or longer, use the following proce- dures to prepare it for storage:
nClean external parts thoroughly.
nDrain all the fuel from the fuel tank.
IMPORTANT!
All stored fuels should be stabilized with a fuel stabilizer such as
if 
oil with fuel stabilizer is not used.
5.Remove the rear muffler shield socket head screw and, while noting the ori- entation of parts, separate the muffler shield. See Figure 32.
6.Remove the spark arrester screen and clean with a stiff bristle brush.
7.Gently tap the muffler on a wood sur- face to dislodge any loose carbon.
CAUTION!
Gasoline stored in the carburetor for extended periods can cause hard starting and could also lead to increased service and maintenance cost.
nRemove the remaining fuel from the fuel lines and carburetor.
1.Prime the primer bulb until no more fuel is passing through.
2.Start and run the engine until it stops running.
3.Repeat steps 1 and 2 until the engine will no longer start.
8.Inspect the cylinder exhaust port for carbon buildup.
IMPORTANT!
If you note excessive carbon buildup, consult with an authorized servicing dealer.
9.Reassemble the muffler in the reverse order of disassembly.
nRemove the spark plug and pour about 1/4 ounce of
nBefore storing the unit, repair or re- place any worn or damaged parts.
nRemove the air cleaner element from the carburetor and clean it thoroughly with soap and water. Let dry and reassemble the element.
nStore the unit in a clean,
Blade Sharpening
When the cutting edges of the blade be- come dull, they can be resharpened with a few strokes of a file.
In order to keep the blade in balance, all cutting edges must be
sharpened equally.
Shindaiwa Tornado® Blade
To sharpen the cutters on a Shindaiwa Tornado Blade, use a
Round
File
30°
Figure 33
WARNING!
Sharpen only the cutting teeth of a blade. DO NOT alter the contour of the blade in any way.
Multiple-Tooth Circular Blade
Use a round file to maintain a radius of
0.04to 0.06" (1 to 1.5 mm) at the base of each tooth. Cutting edges must be offset equally on each side.
Round
File
Figure 34
15