Makita 1923B User manual

Power Planer
PI an in g
width
82 mm (3-1/4”) MODEL 1923B
~ ~~~~ __
Planing Rabbeting No load
0 vera II Net
depth depth speed (RPM) length weight
INSTRUCTION MANUAL
82 mm
(3-1 /4”)
SPEC I FI CAT IO N S
293 mm 2.9 kg
(11-112”) (6.4 Ibs)
16,000
1
mm 23 mm
(1 132”) (1 5/16”)
x Manufacturer reserves the right to change specifications without notice.
x Note: Specificatlons may differ from country to country.

IMPORTANT
SAFETY INSTRUCTIONS
(For All Tools)
WARNING: WHEN USING ELECTRICTOOLS, BASIC SAFE-
REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, AND PER-
TY PRECAUTIONS SHOULD ALWAYS
BE FOLLOWED TO
SONAL INJURY, INCLUDING THE FOLLOWING:
READ ALL INSTRUCTIONS.
1.
2.
3.
4.
5.
6.
7.
8.
9.
IO.
11.
12.
13.
2
KEEP WORK AREA CLEAN. Cluttered areas and benches invite injuries.
CONSIDER WORK AREA ENVIRONMENT. Don't use power tools in damp
or wet locations. Keep work area well
lit. Don't expose power tools torain.
Don't use tool in presence of flammable liquids or gases.
KEEP CHILDREN AWAY. All visitors should be kept away from work area.
Don't let visitors contact tool or extension cord.
STORE IDLETOOLS. When not
in use, tools should be stored indry, and high
or locked-up place
- out of reach of children.
DON'T FORCETOOL.
It willdothejob betterand safer at the ratefor which
it was intended.
USE RIGHT TOOL. Don't force small tool or attachment todo the job of a
heavy-duty tool. Don't use tool for purpose not intended.
DRESS PROPERLY. Don't wear loose clothingorjewelry. They canbe caught
in moving parts. Rubber gloves and non-skid footwear are recommended
when workingoutdoors. Wear protectivehair covering tocontain longhair.
USE SAFETY GLASSES. Also use face or dust mask if cutting operation is
dusty.
DON'T ABUSE CORD. Never carry tool by cord or yank
it todisconnect from
receptacle. Keep cord from heat, oil, and sharp edges.
SECURE WORK. Use clamps or a vise to hold work. It's safer than using
your hand and
it frees both hands to operate tool.
DON'T OVERREACH. Keep proper footing and balance at all times.
MAINTAINTOOLS WITH CARE. Keep tools sharp and clean for better and
safer performance. Follow instructionsfor lubricating and changing acces-
sories. Inspecttoolcords periodicallyand ifdamaged, haverepairedby autho-
rized service facility. Inspect extension cords periodically and replace
if
damaged. Keep handles dry, clean, and free from oil and grease.
DISCONNECTTOOLS. When notinuse, before servicing, and when chang-
ing accessories, such as blades, bits, cutters.

14. REMOVE ADJUSTING KEYS AND WRENCHES. Form habit of checking to
see that keys and adjusting wrenches are removedfromtool before turning
it on.
15. AVOID UNINTENTIONALSTARTING. Don't carry plugged-intoolwithfinger
on switch. Be sure switch is OFF when plugging in.
16. OUTDOOR USEEXTENSIONCORDS. Whentool is usedoutdoors, useonly
extension cords intended for use outdoors and
so marked.
17. STAY ALERT. Watch what you are doing, use commonsense. Don't operate
tool when you are tired.
18. CHECK DAMAGEDPARTS. Before further use of the tool, a guard or other
part that is damaged should be carefully checked to determine that
it will
operate properly and perform its intended function. Check for alignmentof
movingparts, bindingof movingparts, breakageof parts, mounting, and any
other conditions that may affect its operation. A guard or other part that
is damaged should be properly repaired or replaced by an authorized serv-
ice center unless otherwise indicated elsewhere in this instruction manual.
Have defective switches replaced
by authorized service center. Don't use
tool
if switch does not turn it on and off.
19. GUARD AGAINST ELECTRIC SHOCK. Prevent body contact with grounded
surfaces. For example; pipes, radiators, ranges, refrigerator enclosures.
20. REPLACEMENTPARTS.Whenservicing,useonly identicalreplacementparts.
VOLTAGE WARNING: Before connectingthe tool toa power source (receptacle,
outlet, etc.) be sure the voltage supplied is the same
as that specified on the
nameplate of the tool. A power source with voltage greater than that specified
for the tool can result in SERIOUS INJURY tothe user
- as well as damage to
the tool. If in doubt, DO NOT PLUG
IN THE TOOL. Using a power source with
voltage less than the nameplate rating is harmful to the motor.
3

ADDITIONAL SAFETY RULES
1. Rags, cloth, cord, string and the like should never be left around the work
2. Avoid cuttingnails. Inspect for and remove all nails from the workpiece be-
3. Handle the blades very carefully.
4. Be sure the blade installationboltsare securely tightened before operation.
5. Hold the tool firmly with both hands.
6. Keep hands away from rotating parts.
7. Before using the tool on an actual workpiece, let it run for a while. Watch
for vibration or wobbling that could indicate poor installation or a poorly
balanced blade.
8. Make sure the blade is not contacting the workpiece before the switch is
turned on.
9. Wait until the blade attains full speed before cutting.
area.
fore operation.
IO. Keep at least 200 mm (8”) away from the tool at all times.
11. Always switch off and wait for the blades tocome to
a complete stop be-
12. Never stick your finger into the chip chute. Chute may jam when cutting
13.
Do not leave the tool running. Operate the tool only when hand-held.
14. When leaving the planer, switchoff and set it with the front base up on a
15. Always change bothblades or covers onthe drum, otherwise the resulting
fore any adjusting.
damp wood. Clean out chips with a stick.
wooden block,
so that the blades do not contact anything.
imbalance will cause vibration and shorten tool life.
SAVE THESE INSTRUCTIONS.
4

Removingor installingplaner blades
CAUTION
:
Always be sure that the tool is switched off and unplugged beforeremovingor installing
the blade.
To remove the blades on the drum, un-
screw the three installation bolts with the
socket wrench. The drum cover comes off
together with the
blades.
To install the blades, first clean out all
chips or foreign matter adhering to the
drum or blades. Use blades of the same
dimensions and weight, or drum oscilla-
tionhibration will result, causing poor
planing action and, eventually,
tool break-
down.
Place the blade on the gauge base so that
the blade edge
is perfectly flush with the
inside edge of the gauge plate.
Place the
adjusting plate on the blade, then simply
press in the heel of the adjustingplate flush
with the back side of the gauge base and
tighten
two screws on the adjustingplate.
Now slip the heel of the adjusting plate
into the drum groove, then fit the drum
cover on
it. Tighten the three installation
bolts evenly and alternately with the
socket wrench.
Pldl
Adlusting plate-
Blade edye
Inside edge
Adlusting plate uf gduge plate
v
5

3. Set the adjust platehet plate on the
gauge base
so that the planer blade
locating lugs on the
set plate rest inthe
mini planer blade groove, then press in
the heel of the adjust plate flush with
the back side of the gauge base and
tightenthe pan head screws.
4. It is important that the blade sits flush
with the inside flank of the gauge plate,
the planer blade locatinglugs
sit in the
blade groove and the heel of the adjust
plate is flush with the back side of the
gauge base. Check this alignment care-
fully to ensure uniform cutting.
5. Slip the heel of the adjust plate intothe groove of the drum.
6. Set the drum cover over the adjust platehet plate and screw in the three hex flange
head bolts
so that a gap exists between the drum and the set plate to slide the mini
planer blade into position. The blade will be positionedby the planer blade locating
-
Heel of
Inside flank of
lugs on the set plate.
7. The blade’s lengthwise adjustment will
need to be manually positioned
so that
the blade ends are clear and equidistant
from the housing on one side and the
metal bracket
on the other.
8. Tighten the three hex flange head bolts
(with the socket wrench provided)and
hand rotate the drum to check clear-
ances between the blade ends and the
tool body.
9. Check the three hex flange head bolts
for final tightness.
10. Repeatprocedures 1 - 9 for other blade.
nMini planer blade ~ D~~~
I
I Groove
6

For shiplapping, the blade edge should be
made to protrude outside slightly
(0.3 mm
- 0.6 mm: 1/64" - 1/32").
Otherwise, nicks and generally poor ship-
lappingresults.
I
4
I I I II
CAUTION :
Tighten the blade installation bolts carefully when attaching the blades to the tool. A
loose installation bolt can be dangerous. Alwayscheck to see they are tightened securely.
For the correct planer blade setting
Your planingsurface will end up rough and uneven, unless the blade is set properly and
securely. The blade must be mounted
so that the cuttingedge is absolutely level, that is,
parallel to the surface of the rear base. Beloware some examples of proper and improper
settings.
(A)Front base (Movableshoe)
(B) Rear base (Stationaryshoe)
Correct
setting
Nicks
in
surface
Gouging
at start
Gouging
at end
Although this side view cannot show
it, the edges of the blades runperfectly
parallel tothe rear base surface.
Cause: One or bothblades fails tohave
edge parallel to rear base line.
Cause: One or both balde edges fails to
protrude enough
in relation to
rear base line.
Esg&T( Cause: One or both blade edges pro-
trudes toofar in relation to rear
base line.

Adjustingdepth of cut
Depth of cut may be adjusted by simply
turning the knobon the front of the tool.
Switchaction
To start the tool, simply pull the trigger.
Release the trigger tostop. Forcontinuous
operation, pull the trigger and then push in
the lock button. To stopthe tool from the
locked position, pull the trigger fully, then
release
it.
Lock button
Trigger switch
CAUTION :
Before pluggingin the tool, always check to see that the trigger switch actuatesproperly
and returnstothe "OFF" positionwhen released.
Planingoperation
First, rest the tool front base flat upon the
workpiece surface without the blades mak-
ing any contact. Switch on and wait until
the blades attain full speed. Then move the
tool gently forward. Apply pressureon the
front of tool
at the start of planing, and at
the back at the end of planing.Planingwill
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 roughcutting, the depthof cut can be increased,
while for
a good finish you should reduce the depth of cut and advance the tool more
slowly.
8

Shiplapping
To make a stepped cut as shown at the right, use the edge
fence.
Cutting line I
Adjust the edge fence until it comes incon-
tact with the side of the workpiece, then
secure
it by tightening the screw.
You may wish to add to the length
of the
fence by attaching an extra piece of wood.
Convenient holes are provided inthe fence
for this purpose, and also for attaching an
extensionguide (optional accessory).
NOTE :
When planing, move the tool with the edge fence flush with the side of the workpiece.
Otherwiseunevenplaningmay result.
Max. shiplappingdepth
is 23 mm (15/16").
9

Chamfering
To make
a cut as shown at the right, align the "V" groove in
the front base with the edge of the workpiece and plane
it
as shown in the figure (A).
Use of nozzle assembly
Use of the special nozzle assembly will
minimizechip scatter, makingfor
a cleaner
work area.
The nozzle assembly may be attached after I 1
10