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10
GENERAL RECOMMENDATIONS
The warranty on this trimmer does not cover
items that have been subjected to operator
abuse or negligence. To receive full value
from the warranty, operator must maintain
trimmer as instructed in this manual.
Some adjustments will need to be made
periodically to properly maintain your unit.
All adjustments in the Service and Adjust-
ments section of this manual should be
checked at least once each season.
• Once a year, replace the spark plug and
replace air fi lter element. A new spark
plug and clean/new air fi lter element
assure proper air-fuel mix ture and help
your engine run better and last longer.
• Follow the maintenance schedule in this
manual.
MAINTENANCE
BEFORE EACH USE
1. Check engine oil level.
2. Check for loose fasteners.
3. Clean under engine cover.
LUBRICATION
To prolong the useful life of your trimmer,
change engine oil as recommended in this
section of Operator’s Manual.
IMPORTANT: Do not oil or grease plastic
wheel bearings. Vis cous lu bri cants will
at tract dust and dirt that will short en the
life of the self- lu bri cat ing bearings. If you
feel they must be lu bri cat ed, use only
a dry, pow dered graph ite type lu bri cant
spar ing ly.
11
New
trimmer
line
Chassis cover
Wrap
line
around
End of
spooled line
Debris
shield
mark
TRIMMER
Always observe safety rules when per-
form ing any main te nance.
TIRES
• Keep tires free of gasoline, oil, or insect
control chemi cals which can harm rub-
ber.
• Avoid stumps, stones, deep ruts, sharp
objects and other hazards that may
cause tire damage.
TRIMMER LINE
For best results, replace trimmer lines
when they have worn to half their original
length.
20" models use .130 inch diameter trim-
mer line. Cut new trimmer line length to
16-3/4 inches.
22" models use .155 inch diameter trim-
mer line. Cut new trimmer line length to
18-3/4 inches.
After new line is installed on trimmer head,
check all lines so they do not vary more
then one (1) inch in length. This is im-
portant to make sure the trimmer head is
balanced and will not vibrate ab nor mal ly.
WARNING: Use only the specifi ed
trimmer line. Do not use other ma te ri als
such as wire, string, rope, etc. Wire can
break off during trimming and become a
dan ger ous missile that can cause serious
injury.
TO CUT LINE TO PROPER LENGTH
NOTE: Trimmer line pre-cut to proper
length is available for this unit; see the
Repair Parts section of this manual.
If trimmer line is purchased in bulk, it must
be cut to length before using. Use the
built-in length guage as follows:
1. From front of trimmer, place the end of
spooled trimmer line at the mark on the
side of the debris shield as shown.
2. Wrap trimmer line around front of chas-
sis cover to other side and cut at the
mark (for your unit’s width of cut).
20" MODELS
22" MODELS
New
trimmer
line
Chassis cover
WRAP
LINE
AROUND
End of
spooled line
Debris
shield
mark