Makita N1900B User manual

Power Planer
Planing
width
82 mm (3-1/4”) MODEL Nl9OOB
PI ani n g Rabbeting No load Overall Net
depth depth speed
(RPM) length weight
INSTRUCTION MANUAL
82 mm
13-1/4“)
1
DOUBLE
INSULATION
290 mm
2.5 kg
(11-112”)
(5.5 Ibs)
15,000
1 mm 9 mm
(1/32”1 (11/32”)
SPECIFICATIONS
Manufacturer reserves the right to change specifications without notice.
Note: Specifications may differ from country to country.

lM PORTANT
SAFETY INSTRUCTIONS
(For All Tools)
WARNING:
WHEN USING ELECTRIC TOOLS, BASIC SAFE-
TY PRECAUTIONS SHOULD ALWAYS BE FOLLOWED TO
SONAL INJURY, INCLUDING THE FOLLOWING:
REDUCE
THE RISK OF FIRE, ELECTRIC SHOCK, AND PER-
READ ALL INSTRUCTIONS.
1. KEEP WORK AREA CLEAN. Cluttered areas and benches invite injuries.
2. CONSIDER WORK AREA ENVIRONMENT. Don't use power tools in damp
or wet locations. Keep work area well
lit. Don't expose power tools to rain.
Don't use tool
in presence of flammable liquids or gases.
3. KEEP CHILDREN AWAY. All visitors should be kept away from work area.
Don't let visitors contact tool or extension cord.
4. STORE IDLETOOLS. When not in use, toolsshould bestoredindry, and high
or locked-up place
- out of reach of children.
5. DON'T FORCETOOL. It will do thejob better and safer at the rate for which
it was intended.
6. USE RIGHT TOOL. Don't force small tool or attachment to do thejob of a
heavy-duty tool. Don't use tool for purpose not intended.
7. DRESS PROPERLY. Don't wear looseclothing orjewelry. They can becaught
in moving parts. Rubber gloves and non-skid footwear are recommended
when working outdoors. Wear protective hair covering tocontain long hair.
8. USE SAFETY GLASSES. Also use face or dust mask if cutting operation is
dusty.
9. DON'T ABUSE CORD. Never carry tool by cord or yank it todisconnect from
receptacle. Keep cord from heat, oil, and sharp edges.
IO. 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.
11. DON'T OVERREACH. Keep proper footing and balance at all times.
12. MAINTAIN TOOLS WITH CARE. Keep tools sharp and clean for better and
safer performance. Follow instructions for lubricating and changing acces-
.
sories. Inspecttool cords periodically andif damaged, have repairedby autho-
rized service facility. Inspect extension cords periodically and replace if
damaged. Keep handles dry, clean, and free from oil and grease.
13. DISCONNECTTOOLS. When not in use, beforeservicing, and when chang-
ing accessories, such as blades, bits, cutters.
2

14. REMOVE ADJUSTING KEYS AND WRENCHES. Form habit of checking to
see that keys and adjustingwrenches are removedfrom toolbefore turning
it on.
15. AVOID UNINTENTIONAL STARTING. Don't carry plugged-intool with finger
on switch. Be sure switch is
OFF when plugging in.
16. OUTDOOR USE EXTENSION CORDS. Whentoolisusedoutdoors, useonly
extension cords intended for use outdoors and
so marked.
17. STAY ALERT. Watchwhat youare doing, usecommonsense. Don't operate
tool when
you are tired.
18. CHECK DAMAGED PARTS. 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 performitsintended function. Check for alignment of
moving parts, binding of moving parts, breakage of 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
service center unless otherwise indicated elsewhere
in this instruction
manual. Havedefective switches replacedby 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. When servicing, useonly identicalreplacementparts.
21. POLARIZEDPLUGS. To reduce the risk of electric shock, this equipment has
a polarized plug (one blade is wider than the other). This
plug will fit in a
polarized outlet only one way. If the
plug does not fit fully in the outlet,
reverse the
plug. If it stilldoes notfit, contact a qualifiedelectrician toinstall
the proper outlet. Do not change the plug
in any way.
'
VOLTAGE WARNING: Beforeconnectingthetool 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 thetool 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. Avoidcutting nails. Inspect for and removeall nails from the workpiece before
3. Handle the blades very carefully.
4. Be sure the bladeinstallationboltsare 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.
operation.
IO. Keep at least 200 mm (8") away from the tool at all times.
11. Always switchoff and wait for the bladestocometoa completestopbefore
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, switch off and set it with the front base up on a
15. Always change bothblades or covers on the drum, otherwise the resulting
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 installingmini planer blades
CAUTION :
Always be sure that the tool is switched off and unpluggedbefore removing or 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
togetherwith the blades.
1. Remove the existing blade, if the tool has been in use, carefully clean the drum sur-
faces and the drum cover.
2. Loosely attach the adjust plate to the set plate with the pan head screws and set the
mini planer blade on the gauge base
so that the cutting edge of the blade is perfectly
flush with the insideflank of the gauge plate.
3. Set the adjust platehet plate on the
gauge base
so that the planer blade
mini planer blade groove, then press in
locating lugs on the set plate rest in the
the heel of the adjust plate flush with
the back side of the gauge base and
tighten the pan head screws.
4. It is important that the blade sits flush
the planer blade locating lugs
sit in the
with the inside flank of the gauge plate,
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 uniformcutting.
Set plate
lnrlde
flank 01
gauge plate
'*
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 positioned by the planer blade locating
lugs on the set plate.
5

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 bracketon 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. Repeat procedures 1 - 9 for other blade.
Planer blade adjustment (optional accessory)
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 inthe heel of the adjusting plate flush
with the back side
of the gauge base and
tighten
two screws on the adjusting plate.
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.
CAUTION
:
hM~n~ planer blade ~ Drum
I Groove
Bolt
I
Adlustingplate
of gauge plate
Blade edge
Planet blade
1 II I
I
Adjusting plate
I
Gauge plate
Tighten the blade installation bolts carefully when attaching the blades to the tool. A
loose installation bolt can be dangerous. Always check to see they are tightenedsecurely.
6

Forthe 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 cutting edge is absolutely level, that is,
parallel to the surface of the rear base. Below are some examples of properand improper
settings.
(A) Front
base (Movable shoe)
(B) Rear base (Stationaryshoe)
tl
I
Although this side view cannot show
it, the edges of the blades run perfectly
parallel tothe rear base surface.
1 ' Correct
Cause: One or both blades fails tohave
edge parallel to rear base line.
Nicks
in
surface
Adjustingdepth of cut
Depth of cut may be adjusted by simply
turning the knob on the front
of the tool.
rear base line.
Gouging ~
Esg&T( Cause: One or both blade edges pro-
atend trudes too far
in relation to rear
base line.
7

Switch action
To start the tool, simply pull the trigger.
Release the trigger to stop. For continuous
operation, pull the trigger and then push in
the lock button. To stop the tool from the
locked position, pull the trigger fully, then
release
it.
CAUTION :
Before plugging in the tool, always check to see that the trigger switch actuates Properly
and returnsto the "OFF" position when released.
Planingoperation
First, rest the tool front base flat uponthe
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 pressure on 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 injamming 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.

Rabbeting
To make a stepped cut as shown at the right, use the edge
fence.
Draw
a cutting line on the workpiece. In-
sert
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 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 in the fence
for this purpose, and also for attaching an
extension guide (optional accessory).
I I
NOTE :
When planing, move the tool with the edge fence flush with the side of the workpiece.
Otherwise unevenplaningmay result.
Max. shiplappingdepth
is 9 mm (1 1/32").
9

Chamfering
To make a cut as shown at the right, align
the front base with the edge
of the work
as shown in the figure
(A).
e “V” groove with
Use of nozzle assembly (optionalaccessory) .
Use of the special nozzle assembly will
minimize chip scatter, making for a cleaner
work area.
I
Nozzle assembly
The nozzle assembly may be attached after
I
10