Troubleshooting; Maintenance - Black & Decker STB3620L Original Instructions Manual

ENGLISH
Remove the empty spool from the trimmer as described in
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"Replacing the spool".
Remove any remaining cutting line from the spool.
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Make a fold at the end of the cutting line at about 19mm
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(S1). Feed the cutting line into one of the line anchoring
slots (S3).
Make sure the line is pulled tight against the spool and
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begin to wind the cutting line onto the spool in the direc-
tion of the arrow on the spool
Make sure to wind the line on neatly and in layers. Do not
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crisscross (Fig.T).
When the wound cutting line reaches the recesses (S4),
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the spool is full.
Locate line into 'parked' slot provided (Fig.P1). Cut line
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from bulk reel.
Fit the spool onto the trimmer as described in "Replac-
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ing the spool" figures O,P,Q and R.
NOTE: Hand wound spools from bulk line are likely to become
tangled more frequently than BLACK+DECKER factory
wound spools. For best results, factory wound spools are
recommended.
Replacement spools:
#A6486-XJ (3pcs SA spool and line)
#A6482-XJ (1pcs SA spool and line)
Auto Feed System (AFS)
The string trimmer is fitted with AFS spool, which will detect
when the string breaks and re-feed automatically. Do not
bump or pull the string. If the AFS is not feeding properly,
remove spool and check the wire is wound correctly and
re-insert into tool.

Maintenance

Your BLACK+DECKER corded/cordless appliance/tool has
been designed to operate over a long period of time with a
minimum of maintenance. Continuous satisfactory opera-
tion depends upon proper tool/appliance care and regular
cleaning.
Your charger does not require any maintenance apart from
regular cleaning.
Warning! Before performing any maintenance on corded/
cordless power tools:
Switch off and unplug the appliance/tool.
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Or switch off and remove the battery from the appliance/
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tool if the appliance/tool has a separate battery pack.
Or run the battery down completely if it is integral and then
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switch off.
Unplug the charger before cleaning it. Your charger does
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not require any maintenance apart from regular cleaning.
Regularly clean the ventilation slots in your tool/appliance
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and charger using a soft brush or dry cloth.
Regularly clean the motor housing using a damp cloth. Do
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not use any abrasive or solvent-based cleaner.
Regularly clean the cutting line and spool using a soft
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brush or dry cloth.
Regularly use a blunt scraper to remove grass and dirt
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from the underneath of the guard.
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(Original instructions)

Troubleshooting

Problem
Appliance runs slowly.
Automatic line feed does not
feed line.
Overfeeding
Line unravels when cap or
spool is removed
Solution
Fully depress the variable speed trigger.
The level of trigger depression affects
speed.
Remove battery from trimmer
Check that the spool housing can rotate
freely. Carefully clean it if necessary.
Check that the cutting line does not pro-
trude more than approximately 122mm
from the spool. If it does, trim it so that it
just reaches the line trimming blade.
More line is fed when the line shortens
to approximately 76mm. To determine if
the line is not feeding, let line wear past
this point.
Keep the tabs depressed and remove the
spoolcap with the spool from the spool
housing in the trimmer head.
Ensure that the line is not crisscrossed
on the spool as detailed in (Fig.T). If it
is unwind the cutting line and rewind
it neatly.
Inspect tracks at the bottom of spool for
damage. If damageed, replace spool.
Pull the cutting line until it protrudes
approximately 122mm from the spool. If
insufficient cutting line is left on the spool,
install a new spool of cutting line.
Align the tabs on the spool cap with the
cut outs in the housing.
Push the spool cap onto the housing until
it snaps securely into place.
If the cutting line protrudes beyond the
trimming blade, cut it off so that it just
reaches the blade. If the automatic line
feed still does not work or the spool is
jammed, try the following suggestions:
Carefully clean the spool and housing.
Make sure you are using correct line size
and diameter (2.00 mm) - smaller and
larger line sizes will affect the functional-
ity of the auto feed system.
Remove the spool and check if the lever
in the spool housing can move freely.
Remove the spool and unwind the cutting
line, then wind it on neatly again. Replace
the spool into the housing.
Ensure you are cutting with the tip of the
line 177mm from the spool. Use the edge
guide if needed to ensure proper space
is maintained.
Ensure you are not axceeding a 10º an-
gle as shown in (Fig.M). Avoid contact of
the line with hard surfaces such as brick,
concrete, wood etc. This will prevent
excessive wear and/or overfeed of line.
Cut with the tip of the line
Make sure to park the lines in holding
slots (figure P) before removing.