Shindaiwa 81719 User Manual

Page of 36
14
Spark Arrester Screen Maintenance
If the engine becomes sluggish and low on 
power, check and clean the spark arrester 
screen.
WARNING!
Never operate this unit with a 
damaged or missing muffler or spark 
arrester! Operating with missing or 
damaged exhaust components is a 
fire hazard, and can also damage 
your hearing!
1.  With a  mm hex wrench remove the 
4 engine cover screws and the engine 
cover. See Figure 5.
.  With a small flat bladed screwdriver 
remove the  screws holding the spark 
arrester screen and cover to the muf-
fler. See Figure 5.
.  Remove the screen and clean it with a 
stiff bristle brush.
Exhaust Port Inspection
4.  With a 4 mm hex wrench remove the 
 muffler bolts and the muffler.  See 
Figure 5.
5.  Inspect the cylinder exhaust port for 
any carbon buildup.
IMPORTANT!
If you note excessive carbon buildup, 
consult with an authorized Shindaiwa 
servicing dealer.
6.  Reassemble the spark arrester, muffler 
and engine cover in the reverse order of 
disassembly.
Figure 25
Muffler  Bolts
Spark Arrester 
Screen
Cover
Cover Screws
Muffler Gasket
Engine Cover 
Screws
Muffler 
Spark Arrester 
Cover
Long Term Storage
  Remove the spark plug and pour about 
1/4 ounce of -cycle mixing oil into the 
cylinder through the spark plug hole. 
Slowly pull the recoil starter  or  times 
so oil will evenly coat the interior of the 
engine. Reinstall the spark plug.
  Before storing the unit, repair or replace 
any worn or damaged parts.
  Remove the air cleaner element from the 
carburetor and clean it thoroughly with 
soap and water. Let dry and reassemble 
the element.
  Store the unit in a clean, dust-free area.
Whenever the unit will not be used for 0 
days or longer, use the following proce-
dures to prepare it for storage:
  Clean external parts thoroughly.
  Drain all the fuel from the fuel tank.
IMPORTANT!
All stored fuels should be stabilized with a 
fuel stabilizer such as STA-BIL™, if         
oil with fuel stabilizer is not used.
  Remove the remaining fuel from the fuel 
lines and carburetor. 
1.  Prime the primer bulb until no more 
fuel is passing through.
.  Start and run the engine until it stops 
running.
.  Repeat steps 1 and  until the engine 
will no longer start.
CAUTION!
Gasoline stored in the carburetor  for ex-
tended periods can cause hard  starting 
and could also lead to  increased service 
and maintenance  cost.
Replacing the Edger Blade
26118
Holder A
Edger 
Blade
Lock the 
shaft
Holder B
Output Shaft 
Bolt
Bolt 
Guard
Figure 26  
WARNING!
Always wear gloves when handling the 
edger blade.
1. Align the hole in holder A with the 
matching hole in the gearcase and then 
use the hex wrench to temporarily lock 
the output shaft. 
. Use the combination wrench to loosen 
the shaft bolt then remove the output 
shaft bolt, Holder B and the edger blade 
from the gearcase.
. Mount the edger blade and holder B 
onto the shaft, and then install the bolt 
guard and shaft bolt (turn bolt counter-
clockwise to install). See Figure 6.
4. Align the hole in holder A with the 
matching hole in the gearcase, and then 
use the hex wrench to temporarily lock 
the output shaft. See Figure 6.
5. Use the combination wrench to firmly 
tighten the shaft bolt. Remove the hex 
wrench. See Figure 6.