Craftsman CMCST900D1 Instruction Manual page 12

English
thrown out at high speed by the line. The trimmer and
guard are designed to reduce the danger.
However, MAKE SURE that other persons and pets are
at least 100' (30 m) away. Optimum cutting results are
achieved on edges deeper than 2" (50 mm).
• Do not use this trimmer to create trenches.
• Using the wire edge guide
• Position the wire edge guide on the edge of the
sidewalk or abrasive surface so the cutting line is over
the grass or dirt area to be edged.
• To make a closer cut, slightly tilt the trimmer.
Helpful Cutting Tips (Fig. K)
• Use the tip of the string to do the cutting; do not force
string head into uncut grass. Use edge guide along
such things as fences, houses and flower beds for
best practices.
• Wire and picket fences cause extra string wear, even
breakage. Stone and brick walls, curbs, and wood may
wear string rapidly.
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• Do not allow spool cap
other surfaces.
• In long growth, cut from the top down and do not
exceed 12" (305 mm) high.
• Keep trimmer tilted toward the area being cut; this is
the best cutting area.
• The trimmer cuts when passing the unit from the left to
right. This will avoid throwing debris at the operator.
• Avoid trees and shrubs. Tree bark, wood moldings,
siding, and fence posts can easily be damaged by
the string.
Cutting Line/Line Feeding
Your trimmer uses .065" (1.65 mm) diameter, ROUND nylon
line. During use, the tips of the nylon lines will become
frayed and worn and the special self feeding spool will
automatically feed and trim a fresh length of line. Cutting
line will wear faster and require more feeding if the cutting
or edging is done along sidewalks or other abrasive surfaces
or heavier weeds are being cut. The advanced automatic
line feeding mechanism senses when more cutting line
is needed and feeds and trims the correct length of line
whenever it's required. Do not bump unit on ground in
attempt to feed line or for any other purposes.
Clearing Jams and Tangled Line (Fig. K)

WARNING:
from the trimmer before making any assembly,
adjustments or changing accessories. Such preventive
safety measures reduce the risk of starting the
appliance accidentally.
From time to time, especially when cutting thick or stalky
weeds, the line feeding hub may become clogged with
sap or other material and the line will become jammed as a
result. To clear the jam, follow the steps listed below.
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, guide the trimmer.
to drag on ground or
Remove the battery

CAUTION:
the cutting line protrudes beyond the trimming blade,
cut it off so that it just reaches the blade.
1. Remove the battery from the trimmer.
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2. Press the release tabs
remove the spool cap from the spool housing
(Figure K).
3. Pull the nylon line spool out and clear any broken line or
cutting debris from the spool area.
4. Place spool and line into spool cap with line "parked" in
slots provided.
5. Insert the line end through the appropriate hole in the
spool housing. Pull slack line through until it pulls out of
the holding slots.
6. Press the spool down GENTLY and rotate it until you
feel it drop into place and then push to snap into place.
(When in place, the spool will turn a few degrees left
and right freely).
7. Take care to keep the line from becoming trapped
under the spool.
8. Fit the spool onto the appliance as described in
Replacing Spool Assembly.
Fig. K
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Replacing Spool Assembly (Fig. K, L)

WARNING:
not recommended by CRAFTSMAN for use with this
appliance could be hazardous.

WARNING:
or any accessory or attachment other than those
recommended by CRAFTSMAN on this trimmer.
Serious injury or product damage may result.
Reload nylon line (either bulk or prewound replacement
spool) as shown in this manual.
USE ONLY .065" (1.65 mm) DIAMETER ROUND NYLON
MONOFILAMENT LINE. Do not use serrated or heavier gauge
line, as they will overload the motor and cause overheating.
This line is available at your local dealer or authorized
service center.
1. Remove battery from appliance.
To avoid appliance damage, if
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on the spool cap , and
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The use of any accessory
Do not use any blades,