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CUSTOMER
RESPONSIBILITY--
GENERAL MAINTENANCE
A. MAINTENANCE
SAFETY
1. Maintain
the
tool
according
to
recom-
mended
procedures.
Keep the cutting
line at
the proper length.
2. Never
start
the
engine
with
the
clutch
shroud
removed.
The clutch can fly apart and
cause serious injury.
3. Disconnect
the spark
plug before
perform-
ing maintenance
except for carburetor adjust-
ments.
4.
Make
carburetor
adjustments
with
tube
supported
to prevent
the trimmer
line from
contacting
any object.
5. Keep others
away when
making
carburetor
adjustments.
6. Be sure
trimmer
head
stops
turning
when
engine
idles.
See "Carburetor
Adjustments."
7, Replace
trimmer
head
parts
that
are
cracked,
chipped,
broken,
or damaged
in
any other
way before
using
the tool.
8. Use only
.080 (2mm)
diameter
Sears
Laser
Line. Never use wire, rope, string, etc.
9. Use
only
genuine
SEARS
replacement
parts
as recommended.
10. Inspect
the
entire
tool.
Replace
damaged
parts. Check for fuel leaks and make sure all fas-
teners are in place and securely fastened.
B. AIR FILTER
"_
A dirty air filter decreases
the life and
performance
of the engine and increases fuel con-
sumption.
Do not clean the air filter in gaso-
-line
or any other
flammable
solvent;
doing
so can create
a fire hazard.
Clean
the air filter:
•
Always
after 6 tanks of fuel or 5 hours
of
operation,
which
ever is less...
• More
frequently,
in dusty conditions.
1. Loosen the two screws onthe air filter cover
enough to remove the cover from the en-
gine. Figure 22.
2. Remove air filter from the cover. Figure 22.
3. Wash f'flter in soap and water.
4. Squeeze filter dry and replace in cover.
5. Reinstall
the air fdter cover, making
sure
the choke exit slot (Figure 22 ) is placed
over the choke lever,
m
i.i
imwmm
Ht
Choke
Exit Slot
Choke Lever
Air
Air Filter
Corners
Cover
Figure 22
If replacing
the air filter, refer to the
Accessory
list for proper
part number.
I CAIYrION: [ Make sure
the air _ter
is fitted
into the corners
of the cover
to keep
dust
from
entering
the engine
and causing
en-
gine damage.
C. DRIVE
SHAFT
LUBRICATION
•
Lubricate
the Drive
Shaft:
- After each
ten (10) hours
of operation.
-
Before
operating
if the
tool
has
been
stored
for 90 days or longer.
•
To order drive shaft lube, see the Accessory
list for proper
part number.
A WARNING .
i
]If the engine
is hot, avoid touching
the muffler.
]
|A hot muffler
can cause
serious
burns.
]
Lay drive
shaft
on a clean
sur-
face. Avmd laying
the shaft on floor, ground,
or on any other
surface
that
may have dirt
or debris.
Even
after
wiping
shaft,
grease
residue
can pick up particles
that can cause
damage
or premature
failure.
Take
care
to avoid
i_ury
your
hands
and fingers
wzth broken
wires
when
checking
for damage
or wiping
the drive
shaft. A cloth will not prevent
broken
wires
from puncturing
or tearing
your skin.
•
Use the following
procedure:
1. Remove the screw and nut from the throttle
trigger housing.
Figure 5.
2. Hold throttle trigger away from the foam grip
and remove the barrel endof the throttle cable
from the throttle trigger. Figure 3.
7.
3. Carefully pull throttle cable out of foam grip.
4, Loosen the clutch shroud screws and remove
the tube from the engine.
5. Remove drive shaft from the tube. Figure 23.
6. Check the drive shaft for broken wires, twists
or kinks, and replace if damage is found.
Using a clean cloth, wipe the drive shaft thor-
oughly to remove any old grease.
Figure 23.
Apply a uniform coat of lube to the entire sur-
face of the drive shaft.
9. Inject the remaining
contents
of the container
into the top of the tube.
10.Replace
drive shaft in the tube. Figure 23.
ll.Reassemble
tube to the engine.
Tighten clutch
shroud screws securely.
Drive Shaft
Drive Shaft
Housing
Figure 23
- i5 -
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