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III
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GENERAL
MAINTENANCE
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14
A. M_.JNTENANCE
SAFETY
l.
2.
Maintain the tool accordingto recommended pro-
cedures. Keep the trimmerline at the proper length.
Disconnect
the spark plug before
performing
maintenance
except for carburetor adjustments.
3. Makecarburetor
adjustments with the driveshaft
housing supported
to prevent the trimmerline
from contacting any object. Hold the tool with your
hand. Do not use the optional shoulder
strap for
support.
4. Keep
others
away
when
making
carburetor
adjustments.
B.
TRIMMER
HEAD
+
• For proper line feed:
.. Use only genuine Sears pre-wound
spools and
bulk line, Use of other spools or line can result in
excessive breakage, line welding and improper line
feed.
-- Pre-wound
spools offer the most convenient
melhod for replacing line as well as opt_umper-
formance. Be sure to always replace thespool,
ffthe
square comers of the drive lugs are rounded off,
•
reduced in size or broken off. Figure23.
• • Alwaysdean
dirt anddebris from thespool
andhub
when performing
any type maintenance.
1. Installing
Spool
w/Line
a. Hold the Trimmer Head as shown inFigure 18.Press
the lock tab, and turn lock ring counterclock-
•
wise
_.
b. Remove the lock ring, tap button, and spool. Fig-
ure 19.
c. Clean dirt and debris from all parts.
:d. Inspect all trimmer head parts. Clean and replace as
necessary. See "Spool Replacement"
this section.
l
Aw _smsv
Trimmer
head paris that are chipped,
cracked
or
damaged
in any way can fly apart and cause serious
injury. Do not use. Replace
damaged
parts before
using the tool.
NOTE: After a groove is worn into one side of the aluminum
line saver, the line saver can be turned upside
down and
reinstalled
(with the spool removed) to provide a new wear
surface. Figures 19 & 20.
&w,tmmm
:
The line saver must be installed only from the inside of the
spool housing with the flanges facing toward the spool, If
installed on the outside of the spool housing, the line saver
can fly offand become a dangerous missile.
5.
.
7.
Be sure thetrimmer head stops turning when engine
idles. See "Carburetor Adjustments:'
Use only Sears flexible, non-metallic monofilament
cutting lineofthecorrect
diameter, Never use wire,
rope, string, etc.
Replace trimmer head parts that are cracked, chip-
ped or damaged in any way before using the tool.
8. Use only genuine
replacement
parts as recom-
mended by Sears.
9. Inspect entire tool. Replace damaged parts. Check for
fuel leaks. Make sure all fasteners are in place and
securely fastened.
i
i
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ii
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,
/
Figure
18
DRIVI
TAP Bt,TFON
L(K'K RING _._
HOUSING
Figure
20
LINE
Figure
19
.._CATCtl
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