Replacing The Spark Arrestor; Replacing The Spark Plug - Toro 51954 Manuel De L'utilisateur

Replacing the Spark Arrestor

See Figure 17.
Note: Depending on the type of fuel used, the type and
amount of oil used, and/or your operating conditions, the
exhaust port and muffler may become blocked with carbon
deposits. If you notice a power loss with your gas powered
tool, you may need to remove these deposits to restore
performance. We highly recommended that only qualified
service technicians perform this service.
The spark arrester may need to be replaced after repeated
use. If replacement is necessary, use Toro part number
000998216.
To replace the spark arrester:
1. Remove the five screws that hold the cover.
Note: Removing these screws requires the use of a T20
and T25 torx screwdriver.
2. Remove the cover.
3. Remove the two screws holding the muffler assembly in
place.
4. Remove the muffler assembly and muffler gasket. It
may be necessary to work the muffler assembly free
from the muffler gasket.
5. Separate the muffler cover from the muffler.
6. Remove the three screws that hold the plates on the
muffler.
7. Remove the spark arrester.
8. Replace the old spark arrester with the new one.
9. Reassemble the muffler by reinstalling the plates and
tightening the three screws (torque to 18 in.lb mini-
mum, 22 in.lb. maximum).
10. Reassemble the muffler and muffler cover and attach to
the muffler gasket with the two screws.
Cover
Screw(s)
Muffler
Gasket
Muffler Plate
20
Spark
Muffler
Arrester
Cover
Screw(s)
Screw(s)
Figure 17
11. Reinsert the muffler assembly and tighten two screws to
engine (torque to 60 in.lb minimum, 80 in.lb. maxi-
mum).
12. Reinstall the cover on the tool and fasten with the five
screws (torque to 16 in.lb minimum, 22 in.lb. maximum).
Note: Do not over-tighten screws.

Replacing the Spark Plug

See Figure 18.
All model numbers included in this manual use a
Champion RCJ4 spark plug. Use an exact replacement and
replace annually.
1. Remove the spark plug boot.
2. Loosen the spark plug by turning it counterclockwise
with a socket.
3. Remove the spark plug.
4. Hand thread the new spark plug, turning it clockwise.
5. Tighten with a socket. (torque to 170 in.lb. minimum,
190 in.lb. maximum. Do not over-tighten).
CAUTION:
Be careful not to cross-thread the spark plug.
Cross-threading will seriously damage the
product.
Spark Plug Boot
Spark
Plug
Figure 18
Maintenance