Black Max BM25CSEDG Operator's Manual page 13

TO ADVANCE THE CUTTING LINE
Line advance is controlled by tapping the string head on
grass while running engine at full throttle.
 Run engine at full throttle.
 Tap the knob on ground to advance line. The line ad-
vances each time the knob is tapped. Do not hold the
knob on the ground.
NOTE: The line trimming cut-off blade on the grass deflector
will cut the line to the correct length.
NOTE: If the line is worn too short you may not be able to
advance the line by tapping it on the ground. If so, stop the
engine and manually advance the line.
To advance the cutting line manually:
 Stop the engine and disconnect the spark plug wire.
 Push the knob in while pulling on line(s) to manually ad-
vance the line.
GRASS DEFLECTOR LINE TRIMMING CUT-
OFF BLADE
See Figure 12.
The trimmer is equipped with a line trimming cut-off blade
on the grass deflector. For best cutting, advance line until it
is trimmed to length by the cut-off blade. Advance the line
whenever you hear the engine running faster than normal,
or when trimming efficiency diminishes. This will maintain
best performance and keep the line long enough to advance
properly.
USING THE EDGER ATTACHMENT
See Figure 13.
WARNING:
Engine housing on gas power heads may become hot
during edger operation. Do not rest or place your arm,
hand, or any body part against the engine housing during
edger operation. Only hold the edger as shown in figure
13 with all body parts clear of engine housing. Extended
contact with the engine housing can result in burns or
other injuries.
WARNING:
Always position the unit on the operator's right side. The
use of the unit on the operator's left side will expose the
operator to hot surfaces and can result in possible burn
injury.
OPERATION
WARNING:
To avoid burns from hot surfaces, never operate unit with
the bottom of the engine above waist level.
When using the edger attachment, hold the unit with your
right hand on the rear handle and your left hand on the front
handle. Keep a firm grip with both hands while in operation.
The edger should be held at a comfortable position with the
rear handle about hip height.
NOTE: When used with a gas power head, always operate
at full throttle. Prolonged cutting at partial throttle will result
in oil dripping from the muffler.
ADJUSTING DEPTH OF CUT
See Figures 14 - 15.
 Stop the engine and disconnect the spark plug wire.
 Loosen the adjusting knob and move the wheel arm up
to increase the depth or down to decrease the depth.
 After adjustment is complete, tighten the adjusting knob
securely.
 Replace the spark plug wire.
NOTE: Adjust the blade depth from 1/2 in. to 1 in. deep
initially. Make a shallow cut to test the cutting depth. If the
cutting depth needs adjusting, this should be done progres-
sively until the desired depth is reached.
EDGER OPERATING TIPS
 The edger will edge along sidewalks, driveways, flower-
beds, curbs, and similar areas.
 Use the arrow guide on the blade guard to align the blade
with the edging surface.
 Cut at a steady pace. If the blade begins to bog down,
you are edging too fast; slow your pace. Do not force the
blade into ground.
 Light contact of the blade against the sidewalk edge,
curb, etc., is acceptable and will not damage the edger.
 Best appearance is obtained when grass is dry. Avoid
edging in wet soil or wet grass areas or the blade guard
might clog and result in an uneven edge. If the blade
guard becomes clogged, stop the engine, remove the
spark plug wire, disconnect from the power supply, or
remove the battery pack, then remove debris from the
blade guard.
Page 9 — English