Replacing The Spark Arrestor - Toro 51944 Operator's Manual

Maintenance
7. Rinse the air filter and let it dry completely.
8. Work two drops of oil into the air filter.
9. Replace the air filter (fits only one way).
10. Replace the air filter cover.
11. Tighten the air filter cover by turning the knob clock-
wise.
12. Replace the spark plug boot.
NOTE: Replace the air filter as indicated by the mainte-
nance schedule.

Replacing the Spark Arrestor

See Figure 9.
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.
Cover
Screw(s)
Muffler
Gasket
Muffler Plate
16
Spark
Muffler
Arrester
Cover
Screw(s)
Screw(s)
Figure 9
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.
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 overtighten screws.
Maintenance