Maintenance; Troubleshooting - Black & Decker GH750 Instruction Manual

22 • ENGLISH
in the cassette. Rotate the spool slightly until it is seated.
► Unfasten the end of one of the cutting lines and guide the
line into one of the eyelets (7) Fig. K. The line should
protrude approximately 4-3/8 inches (111mm) from the
cassette.
► Unfasten the end of the other cutting line and guide the
line into the other eyelet. The line should protrude
approximately 4-3/8 inches (111mm) from the cassette.
► Align the cassette tabs (1) with the slots (8) in the housing
(Fig. J).
► Push the cassette onto the housing until it snaps securely
into place.
Caution! To avoid tool damage, If the cutting lines protrude
beyond the trimming blade (9), cut them off so that they just
reach the blade (Fig. J).
Winding New Line Onto an Empty Spool (Figs. L & M)
You may wind new cutting line onto an empty spool.
Replacement packs of .065 inch (1.65 mm) cutting line are
available from your local dealer.
► Remove the empty spool from the tool as described in
"Fitting a New Spool of AFS Cutting Line".
► Remove any remaining cutting line from the spool.
► First wind new line onto the uppermost part of the spool.
● Feed 3/4 inch (19mm) of cutting line into one of the
line anchoring slots.
● Wind the cutting line onto the spool in the direction
of the arrow on the spool.
► Make sure to wind the line on neatly and in layers. Do not
crisscross (Fig. L).
● When the wound cutting line reaches the recesses
(10), cut the line (Fig. M).
● Temporarily park the line in the holding slots (11) on
one side of the spool as shown in the inset in Fig. M.
► Repeat the above procedure for the second cutting line
on the lower section of the spool.
► Fit the spool onto the tool as described in "Fitting a New
Spool of Cutting Line".
Caution! Before you begin trimming, only use the
appropriate type of cutting line. Ensure that cutting line is
present in both sections of the spool (Fig. L).
¡Important! To assure product Safety and Reliability,
repairs, maintenance and adjustment should be performed
by authorized service centers or other qualified Service
organizations, always using identical replacement parts.
Warning! If the supply cord is damaged, it must be replaced
by the manufacturer, an authorized Black & Decker Service
Centre or an equally qualified person in order to avoid a
hazard. If the supply cord is replaced by an equally qualified
person, but not authorized by Black & Decker, the warranty
will lose effect.
ACCESSORIES
Use Black & Decker replacement spool Model No. DF-065.
Reload nylon line (either bulk or prewound replacement spool)
as shown in this manual.
► Use only .065 inch (1.65 mm) diameter nylon
monofilament line. Do not use serrated or heavier gauge
line, as they will overload the motor and cause overheating.
The unit only functions properly with .065 inch (1.65 mm)
diameter nylon monofilament line. This line is available at
your local dealer or authorized Service Center.
Warning! The use of any accessory not recommended by
Black & Decker for use with this tool could be hazardous.

MAINTENANCE

Warning! To avoid serious injury, switch off and unplug
the tool before performing any maintenance.
1. Keep the air intake slots (Fig. N) clean to avoid overheating.
2. Your trimmer line can dry out over time. To keep your line in
top condition, store spare pre-wound spools or bulk line in
a plastic, sealable bag with a tablespoon of water.
3. Plastic parts may be cleaned by using a mild soap and a
damp rag.
4. The line cutter on the edge of the guard can dull over time.
It is recommended you periodically touch-up the sharpness
of the blade with a file.

TROUBLESHOOTING

Warning! To avoid serious injury, switch off and unplug the
tool before performing any maintenance.
Tool Runs Slowly
► Check that the cassette housing can rotate freely.
Carefully clean it if necessary.
► Check that the cutting line does not protrude more than
approximately 4-3/8 inches (111mm) from the cassette.
If it does, cut it off so that it just reaches the line trimming
blade.
Automatic Line Feed Does Not Work
► Keep the tabs depressed and remove the cassette from
the cassette housing in the trimmer head.
► Pull the cutting line until it protrudes approximately
4-3/8 inches (111mm) from the cassette. If insufficient
cutting line is left on the spool, install a new spool
of cutting line.
► Align the tabs on the cassette with the cut outs in
the housing.
► Push the cassette 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 cassette and housing.