Makita 1923H User manual

INSTRUCTION MANUAL
WARNING:
For your personal safety, READ and UNDERSTAND before using.
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.
ENGLISH
Power Planer
MODEL 1923H
004878
DOUBLE
INSULATION

2
SPECIFICATIONS
• Due to our continuing programme of research and development, the specifications herein are subject to change
without notice.
• Note: Specifications may differ from country to country.
SYMBOLS END201-1
The following show the symbols used for the tool. Be
sure that you understand their meaning before use.
...................Read instruction manual.
...................DOUBLE INSULATION
Intended use
The tool is intended for planing wood.
Power supply
The tool should be connected only to a power supply of
the same voltage as indicated on the nameplate, and
can only be operated on single-phase AC supply. They
are double-insulated in accordance with European
Standard and can, therefore, also be used from sockets
without earth wire.
For European countries only
Noise and Vibration
The typical A-weighted noise levels are
sound pressure level: 93 dB (A)
sound power level: 106 dB (A)
– Wear ear protection. –
The typical weighted root mean square acceleration
value is not more than 2.5 m/s2.
EC-DECLARATION OF CONFORMITY
We declare under our sole responsibility that this prod-
uct is in compliance with the following standards of
standardized documents, HD400, EN50144, EN55014,
EN61000 in accordance with Council Directives, 73/23/
EEC, 89/336/EEC, 98/37/EC.
Yasuhiko Kanzaki CE 2003
Director
MAKITA INTERNATIONAL EUROPE LTD.
Michigan Drive, Tongwell, Milton Keynes, Bucks MK15
8JD, ENGLAND
Model 1923H
Planing width 82 mm
Planing depth 3.5 mm
Shiplapping depth 23 mm
No load speed (min-1)16,000
Overall length 293 mm
Net weight 3.5 kg
Safety class /II

3
SAFETY INSTRUCTIONS ENA001-2
WARNING:
When using electric tools, basic safety precautions, including the following,
should always be followed to reduce the risk of fire, electric shock and
personal injury. Read all these instructions before operating this product
and save these instructions.
For safe operations:
1. Keep work area clean.
Cluttered areas and benches invite injuries.
2. Consider work area environment.
Do not expose power tools to rain. Do not use
power tools in damp or wet locations. Keep work
area well lit. Do not use power tools where there is
risk to cause fire or explosion.
3. Guard against electric shock.
Avoid body contact with earthed or grounded sur-
faces (e.g. pipes, radiators, ranges, refrigerators).
4. Keep children away.
Do not let visitors touch the tool or extension cord.
All visitors should be kept away from work area.
5. Store idle tools.
When not in use, tools should be stored in a dry,
high or locked up place, out of reach of children.
6. Do not force the tool.
It will do the job better and safer at the rate for which
it was intended.
7. Use the right tool.
Do not force small tools or attachments to do the job
of a heavy duty tool. Do not use tools for purposes
not intended; for example, do not use circular saws
to cut tree limbs or logs.
8. Dress properly.
Do not wear loose clothing or jewellery, they can be
caught in moving parts. Rubber gloves and non-skid
footwear are recommended when working outdoors.
Wear protecting hair covering to contain long hair.
9. Use safety glasses and hearing protection.
Also use face or dust mask if the cutting operation is
dusty.
10. Connect dust extraction equipment.
If devices are provided for the connection of dust
extraction and collection facilities ensure these are
connected and properly used.
11. Do not abuse the cord.
Never carry the tool by the cord or yank it to discon-
nect it from the socket. Keep the cord away from
heat, oil and sharp edges.
12. Secure work.
Use clamps or a vice to hold the work. It is safer
than using your hand and it frees both hands to
operate the tool.
13. Do not overreach.
Keep proper footing and balance at all times.
14. Maintain tools with care.
Keep cutting tools sharp and clean for better and
safer performance. Follow instructions for lubrica-
tion and changing accessories. Inspect tool cord
periodically and if damaged have it repaired by an
authorized service facility. Inspect extension cords
periodically and replace, if damaged. Keep handles
dry, clean and free from oil and grease.
15. Disconnect tools.
When not in use, before servicing and when chang-
ing accessories such as blades, bits and cutters.
16. Remove adjusting keys and wrenches.
Form the habit of checking to see that keys and
adjusting wrenches are removed from the tool
before turning it on.
17. Avoid unintentional starting.
Do not carry a plugged-in tool with a finger on the
switch. Ensure switch is off when plugging in.
18. Use outdoor extension leads.
When tool is used outdoors, use only extension
cords intended for outdoor use.
19. Stay alert.
Watch what you are doing. Use common sense. Do
not operate tool when you are tired.
20. 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 perform
its intended function. Check for alignment of moving
parts, free running 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 in this instruction manual. Have defective
switches replaced by an authorized service facility.
Do not use the tool if the switch does not turn it on
and off.
21. Warning.
The use of any accessory or attachment, other than
those recommended in this instruction manual or
the catalog, may present a risk of personal injury.
22. Have your tool repaired by a qualified person.
This electric tool is in accordance with the relevant
safety requirements. Repairs should only be carried
out by qualified persons using original spare parts,
otherwise this may result in considerable danger to
the user.

4
ADDITIONAL SAFETY RULES FOR TOOL ENB045-2
1. Rags, cloth, cord, string and the like should
never be left around the work area.
2. Avoid cutting nails. Inspect for and remove all
nails from the workpiece before operation.
3. Use only sharp blades. Handle the blades very
carefully.
4. Be sure the blade installation bolts are securely
tightened before operation.
5. Hold the tool firmly.
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 wob-
bling that could indicate poor installation or a
poorly balanced blade.
8. Make sure the blade is not contacting the work-
piece before the switch is turned on.
9. Wait until the blade attains full speed before cut-
ting.
10. Keep at least 200 mm away from the tool at all
times.
11. Always switch off and wait for the blades to
come to a complete stop before any adjusting.
12. Never stick your finger into the chip chute.
Chute may jam when cutting damp wood. Clean
out chips with a stick.
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 wooden block, so
that the blades do not contact anything.
15. Always change both blades or covers on the
drum, otherwise the resulting imbalance will
cause vibration and shorten tool life.
16. Wait for complete run-down before putting the
tool aside.
17. Use only Makita blades specified in this manual.
SAVE THESE INSTRUCTIONS

5
FUNCTIONAL
DESCRIPTION CAUTION:
•Always be sure that the tool is switched off and unplugged before
adjusting or checking function on the tool.
Adjusting depth of cut
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
To start the tool, simply pull the switch trigger. Release the switch trigger to
stop.
For tool with lock button
To start the tool, simply pull the switch trigger. Release the switch trigger to
stop.
For continuous operation, pull the switch trigger and then push in the lock but-
ton.
To stop the tool from the locked position, pull the switch trigger fully, then
release it.
For tool with lock-off button
To prevent the switch trigger from being accidentally pulled, a lock-off button is
provided.
To start the tool, depress the lock-off button and pull the switch trigger.
Release the switch trigger to stop.
1. Knob
1
004879
1. Switch trigger
1
004881
1. Lock button/Lock-off button
2. Switch trigger
1
2
004884

6
ASSEMBLY CAUTION:
•Always be sure that the tool is switched off and unplugged before
carrying out any work on the tool.
Removing or installing planer blades
CAUTION:
•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 tightened securely.
•Handle the blades very carefully. Use gloves or rags to protect your
fingers or hands when removing or installing the blades.
•Use only the Makita wrench provided to remove or install the blades.
Failure to do so may result in overtightening or insufficient tightening of
the installation bolts. This could cause an injury.
For tool with standard planer blades
To remove the blades on the drum, unscrew the 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 oscil-
lation/vibration will result, causing poor planing action and, eventually, tool
breakdown.
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 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 all the installation bolts evenly and alternately with the socket wrench.
1. Bolt
2. Drum
3. Planer blade
4. Drum cover
5. Adjusting plate
004886
1
2
3
4
5
002555

7
For tool with mini planer blades
1. Remove the existing blade, if the tool has been in use, carefully clean the
drum surfaces and the drum cover. To remove the blades on the drum,
unscrew the three installation bolts with the socket wrench. The drum
cover comes off together with the blades.
2. To install the blades, loosely attach the adjusting 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 inside
flank of the gauge plate.
3. Set the adjusting plate/set plate on the gauge base so that the planer
blade locating lugs on the set plate rest in the mini planer blade groove,
then press in the heel of the adjusting 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 with the inside flank of the gauge
plate, the planer blade locating lugs sit in the blade groove and the heel
of the adjusting plate is flush with the back side of the gauge base.
Check this alignment carefully to ensure uniform cutting.
1. Inside edge of gauge plate
2. Blade edge
3. Planer blade
4. Adjusting plate
5. Screws
6. Heel
7. Back side of gauge base
8. Gauge plate
9. Gauge base
1
2
3
4
5
6
7
8
9
002556
1. Pan head screw
2. Adjusting plate
3. Planer blade locating lugs
4. Gauge plate
5. Heel of adjusting plate
6. Set plate
7. Inside flank of gauge plate
8. Gauge base
9. Back side of gauge base
10.Mini planer blade
004887
1
2
3
4
5
6
7
8
9
10
002565

8
5. Slip the heel of the adjusting plate into the groove of the drum.
6. Set the drum cover over the adjusting plate/set 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.
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 pro-
vided) and rotate the drum to check clearances 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.
For the correct planer blade setting
Your planing surface 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.
Refer to some examples below for proper and improper settings.
1. Mini planer blade
2. Groove
3. Set plate
4. Hex. flange head bolt
5. Drum cover
6. Drum
1
2
3
4
5
6
002566
(A) (B)
(B)
(A) (B)
(A)
(A) Front base (Movable shoe)
(B) Rear base (Stationary shoe)
Correct setting
Nicks in surface
Gouging at start
Gouging at end
Although this side view cannot
show it, the edges of the blades
run perfectly parallel to the rear
base surface.
Cause: One or both blades fails to
have edge parallel to rear
base line.
Cause: One or both blade edges
fails to protrude enough in
relation to rear base line.
Cause: One or both blade edges
protrudes too far in relation
to rear base line.
EN0004-1

9
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. Install the nozzle on the tool using the screws. Then con-
nect a hose of the vacuum cleaner to the nozzle as shown in the figures.
For other countries and areas
A nozzle and joint (optional accessories) are necessary to connect a Makita
vacuum cleaner to your tool. Consult a Makita catalogue or representative on
the nozzle and joint.
Nozzle assembly (optional accessory)
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.
OPERATION
Planing operation
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 cut-
ting, 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.
1. European type (round) chip cover
2. Screwdriver
1
2
004902
1. Vacuum cleaner
1
004951
1. Screw
2. Nozzle assembly
1
2
004895
1. Start
2. End
1
2
004897

10
Shiplapping (Rabbeting)
To make a stepped cut as shown in the figure, use the edge fence (guide rule).
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.
When planing, move the tool with the edge fence flush with the side of the
workpiece. Otherwise uneven planing may result.
Maximum shiplapping (rabbeting) depth is 23 mm.
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).
CAUTION:
The blade edge should be made to protrude outside slightly (0.3 mm - 0.6
mm). Otherwise, nicks and generally poor shiplapping results.
002580
1. Blade edge
2. Cutting line
12
004898
1. Edge fence
2. Screw
1
2
004899
002584
0.3 - 0.6 mm
004900

11
Chamfering
To make a chamfering cut as shown in the figure, align the “V”groove in the
front base with the edge of the workpiece and plane it.
MAINTENANCE CAUTION:
•Always be sure that the tool is switched off and unplugged before
attempting to perform inspection or maintenance.
Sharpening the planer blades
For standard blades only
Always keep your blades sharp for the best performance possible. Use the
sharpening holder to remove nicks and produce a fine edge.
1. “V”groove
003634
1
004901
1. Sharpening holder
1
002588

12
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 minutes before sharpening.
Hold the holder so that the both blades contact the dressing stone for simulta-
neous sharpening at the same angle.
Replacing carbon brushes
Remove and check the carbon brushes regularly. Replace when they wear
down to the limit mark. Keep the carbon brushes clean and free to slip in the
holders. Both carbon brushes should be replaced at the same time. Use only
identical carbon brushes.
Use a screwdriver to remove the rear cover.
1. Wing nut
2. Blade (A)
3. Blade (B)
4. Side (D)
5. Side (C)
1
2
34
5
002589
002590
1. Limit mark
1
001145
1. Rear cover
2. Screwdriver
1
2
004904

13
Take out the worn carbon brushes, insert the new ones and secure the rear
cover.
To maintain product SAFETY and RELIABILITY, repairs, any other mainte-
nance or adjustment should be performed by Makita Authorized Service Cent-
ers, always using Makita replacement parts.
ACCESSORIES
CAUTION:
•These accessories or attachments are recommended for use with your Makita tool specified in this manual. The
use of any other accessories or attachments might present a risk of injury to persons. Only use accessory or
attachment for its stated purpose.
If you need any assistance for more details regarding these accessories, ask your local Makita service center.
1. Carbon brushes
1
004906
•High-speed steel Planer blade
•Tungsten-carbide Planer blade
(For longer blade life)
•Mini planer blade
•Sharpening holder assembly
•Blade gauge
•Set plate set
•Edge fence (Guide rule)
•Extension guide set
•Dressing stone
•Nozzle assembly
•Dust bag assembly
•Joint
•Socket wrench
•Hex wrench

Memo
14

Memo
15

Makita Corporation
883522H3