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Spark Arrester Maintenance
1.
With the engine at ambient (room) temperature,
loosen the knob and remove the air cleaner cover
(Fig. 8).
2.
Loosen the knob and lift off the cylinder cover
(Fig. 8).
3.
Remove the two socket head screws holding the
spark arrester assembly to the muffler (Fig. 24).
4.
Remove and clean the tail, gasket and spark
arrester with a safety solvent and a stiff brush. If
any part cannot be thoroughly cleaned, it must
be replaced.
5.
Reinstall the spark arrester, gasket and tail onto
the muffler, then reinstall and tighten the two
socket head screws (Fig. 24).
6.
Reinstall the cylinder and air cleaner covers
(Fig. 8).
Exhaust Muffler
Maintenance Interval
The muffler should be inspected and cleaned after
each 100 hours of use.
Muffler Maintenance
1.
With the engine at ambient (room) temperature,
loosen the knob and remove the air cleaner cover
(Fig. 8).
2.
Loosen the knob and lift off the cylinder cover
(Fig. 8).
3.
Remove the two socket head screws holding the
spark arrester assembly to the muffler and
remove the tail, gasket and spark arrester
(Fig. 24).
4.
Remove the three socket head screws holding the
muffler cover to the muffler body and remove
the muffler cover (Fig. 24).
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5.
Clean the muffler body and cover with a safety
solvent and a stiff brush (Fig. 24).
IMPORTANT: Be careful not to allow any
dirt or debris to fall into the exhaust ports, as
this can cause engine damage.
6.
To reassemble the muffler cover to the muffler:
A. Apply liquid gasket (p/n M261910) to the
muffler cover sealing surfaces, then reinstall
the cover onto the muffler body (Fig. 24).
B. Apply removable Loctite to the three socket
head muffler cover screws, then reinstall
and tighten the three screws (Fig. 24).
7.
Reinstall the spark arrester, gasket and tail onto
the muffler, then reinstall and tighten the two
socket head screws (Fig. 24).
8.
Reinstall the cylinder and air cleaner covers
(Fig. 8).
Gearcase Maintenance
The gearcase is a sealed unit which has been greased
at the factory. No gearcase maintenance or lubrication
is required or recommended.
General Cleaning and
Tightening
POTENTIAL HAZARD
When engine is running, cutting chain is
rotating and other parts are moving.
WHAT CAN HAPPEN
Contact with rotating cutting chain or
other moving parts could cause serious
personal injury or death.
HOW TO AVOID THE HAZARD
Always turn off your Pruner before you
clean or perform any maintenance on it.
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