Maintenance - Makita 1923B Betriebsanleitung

Adjusting the depth of cut (Fig. 8)
Depth of cut may be adjusted by simply turning the
knob on the front of the tool.
Switch action
CAUTION:
Before plugging in the tool, always check to see that
the switch trigger actuates properly and returns to the
"OFF" position when released.
For tool without lock button and lock-off button
(Fig. 9)
To start the tool, simply pull the trigger. Release the
trigger to stop.
For tool with lock button (Fig. 10)
To start the tool, simply pull the trigger. Release the
trigger to stop. For continuous operation, pull the trig-
ger and then push in the lock button. To stop the tool
from the locked position, pull the trigger fully, then
release it.
For tool with lock-off button (Fig. 10)
To prevent the trigger from being accidentally pulled,
a lock-off button is provided. To start the tool, press
the lock-off button and pull the trigger. Release the
trigger to stop.
Planing operation (Fig. 11)
First, rest the tool front base flat upon the workpiece
surface without the blades making any contact.
Switch on and wait until the blades attain full speed.
Then move the tool gently forward. Apply pressure on
the front of tool at the start of planing, and at the back
at the end of planing. Planing will be easier if you
incline the workpiece in stationary fashion, so that
you can plane somewhat downhill. The speed and
depth of cut determine the kind of finish. The power
planer keeps cutting at a speed that will not result in
jamming by chips. For rough cutting, the depth of cut
can be increased, while for a good finish you should
reduce the depth of cut and advance the tool more
slowly.
Shiplapping (Fig. 12, 13, 14 & 15)
To make a stepped cut as shown in Fig. 12, use the
edge fence (optional accessory).
Draw a cutting line on the workpiece. Insert the edge
fence into the hole in the front of the tool. Align the
blade edge with the cutting line.
Adjust the edge fence until it comes in contact with
the side of the workpiece, then secure it by tightening
the screw (optional accessory).
You may wish to add to the length of the fence by
attaching an extra piece of wood. Convenient holes
are provided in the fence for this purpose, and also
for attaching an extension guide (optional acces-
sory).
NOTE:
When planing, move the tool with the edge fence
flush with the side of the workpiece. Otherwise
uneven planing may result.
Max. shiplapping depth is 9 mm.
Chamfering (Fig. 16, 17 & 18)
To make a cut as shown in Fig. 16, align the "V"
groove in the front base with the edge of the work-
piece and plane it as shown in the Fig. 18.
Nozzle assembly (optional accessory)
(Fig. 19 & 20)
Use of the special nozzle assembly will minimize chip
scatter, making for a cleaner work area.
The nozzle assembly may be attached after the chip
cover on the tool body is removed. When slipping on
the assembly, fit the pin on it into the rear cover hole.
Use the chip cover screws to fasten it in place.
Sharpening the planer blades (Fig. 21, 22 & 23)
For standard blades only
Always keep your blades sharp for the best perfor-
mance possible. Use the sharpening holder to
remove nicks and produce a fine edge.
First, loosen the two wing nuts on the holder and
insert the blades (A) and (B), so that they contact the
sides (C) and (D). Then tighten the wing nuts.
Immerse the dressing stone in water for 2 or 3 min-
utes before sharpening. Hold the holder so that the
blades both contact the dressing stone for simulta-
neous sharpening at the same angle.
Connecting a vacuum cleaner
For European countries and areas
When you wish to perform clean planing operation,
connect a Makita vacuum cleaner to your tool as
shown in Fig. 24.
For other countries and areas
A nozzle and joint (optional accessories) are neces-
sary to connect a Makita vacuum cleaner to your tool.
Consult a Makita catalogue or representative on the
nozzle and joint.

MAINTENANCE

CAUTION:
Always be sure that the tool is switched off and
unplugged before carrying out any work on the tool.
Replacement of carbon brushes
(Fig. 25, 26 & 27)
Replace carbon brushes when they are worn down to
the limit mark. First, remove the chip cover and then
replace the carbon brushes. Both identical carbon
brushes should be replaced at the same time.
To maintain product safety and reliability, repairs,
maintenance or adjustment should be carried out by
a Makita Authorized Service Center.
(Fig. 24)
9