Spark Arrestor Maintenance - Ryobi 280r Manual Del Operador

MAINTENANCE AND REPAIR INSTRUCTIONS

SPARK ARRESTOR MAINTENANCE

Removing the Muffler
WARNING: To avoid serious personal injury,
make sure the muffler is cool before you
remove it from the housing.
1. Remove the 10 screws holding the unit housing
together with a T20 Torx or flat blade screwdriver
(Fig. 26).
2. Locate the two (2) muffler mounting bolts that are
holding the heat shield and muffler to the engine.
Remove the two (2) bolts using a flat blade
screwdriver or 5/16-inch socket or nut driver (Fig. 27).
NOTE: Do not remove the heat shield/muffler screw to
separate the top heat shield from the muffler. The
spark arrestor will be accessible without
removing the screw.
Muffler
Mounting
Bolts
Top Heat Shield
Heat Shield/
Muffler Screw
DO NOT
REMOVE
Muffler
Bottom Heat Shield
16
Fig. 26
Air Filter
Screws (4)
Fig. 27
3. Locate the four (4) screws holding the top heat shield
to the bottom heat shield (two on each side). Remove
the four (4) screws using a T20 Torx or flat blade
screwdriver (Fig. 27).
4. Remove the top heat shield with the muffler attached
from the engine as one piece.
Removing the Spark Arrestor
5. Turn the heat shield/muffler unit over. Look inside the
heat shield and locate the exhaust gasket on the
muffler. Remove the exhaust gasket from the muffler
to locate the spark arrestor (Fig. 28).
NOTE: If exhaust gasket is torn or damaged, replace
with a new gasket before reassembling.
Heat
Shield
Spark
Arrestor
6. Using a small flat blade screwdriver, carefully pry up
the spark arrestor from the recessed hole in the
muffler. Remove spark arrestor from muffler (Fig 29).
7. Clean the spark arrestor with a wire brush. Replace it
if it is damaged or if you are unable to clean it
thoroughly (Fig. 29).
Spark
Arrestor
Muffler
Exhaust
Gasket
Muffler
Fig. 28
Spark
Arrestor
Small Flat Blade Screwdriver
Fig. 29