Planer
MODEL KP312
003868
DOUBLE
INSULATION
I N S T R U C T I O N M A N U A L
WARNING:
For your personal safety, READ and UNDERSTAND before using.
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.
w w w. m a k i t a t o o l s . c o m
5. Avoid body contact with grounded sur-
faces such as pipes, radiators, ranges and
refrigerators. There is an increased risk of
electric shock if your body is grounded.
14. Use safety equipment. Always wear eye
protection. Dust mask, non-skid safety
shoes, hard hat, or hearing protection must
be used for appropriate conditions. Ordinary
eye or sun glasses are NOT eye protection.
6. Do not expose power tools to rain or wet
conditions. Water entering a power tool will
increase the risk of electric shock.
Tool Use and Care
15. Use clamps or other practical way to
secure and support the workpiece to a
stable platform. Holding the work by hand or
against your body is unstable and may lead
to loss of control.
7. Do not abuse the cord. Never use the cord
to carry the tools or pull the plug from an
outlet. Keep cord away from heat, oil,
sharp edges or moving parts. Replace
damaged cords immediately. Damaged
cords increase the risk of electric shock.
16. Do not force tool. Use the correct tool for
your application. The correct tool will do the
job better and safer at the rate for which it is
designed.
8. When operating a power tool outside, use
an outdoor extension cord marked “W-A”
or “W”. These cords are rated for outdoor
use and reduce the risk of electric shock.
17. Do not use tool if switch does not turn it
on or off. Any tool that cannot be controlled
with the switch is dangerous and must be
repaired.
Personal Safety
9. Stay alert, watch what you are doing and
use common sense when operating a
power tool. Do not use tool while tired or
under the influence of drugs, alcohol, or
medication. A moment of inattention while
operating power tools may result in serious
personal injury.
18. Disconnect the plug from the power
source before making any adjustments,
changing accessories, or storing the tool.
Such preventive safety measures reduce the
risk of starting the tool accidentally.
19. Store idle tools out of reach of children
and other untrained persons. Tools are
dangerous in the hands of untrained users.
10. Dress properly. Do not wear loose cloth-
ing or jewelry. Contain long hair. Keep
your hair, clothing, and gloves away from
moving parts. Loose clothes, jewelry, or
long hair can be caught in moving parts.
20. Maintain tools with care. Keep cutting
tools sharp and clean. Properly maintained
tools with sharp cutting edges are less likely
to bind and are easier to control.
11. Avoid accidental starting. Be sure switch
is off before plugging in. Carrying tools with
your finger on the switch or plugging in tools
that have the switch on invites accidents.
21. Check for misalignment or binding of
moving parts, breakage of parts, and any
other condition that may affect the tools
operation. If damaged, have the tool ser-
viced before using. Many accidents are
caused by poorly maintained tools.
12. Remove adjusting keys or wrenches
before turning the tool on. A wrench or a
key that is left attached to a rotating part of
the tool may result in personal injury.
22. Use only accessories that are recom-
mended by the manufacturer for your
model. Accessories that may be suitable for
one tool, may become hazardous when used
on another tool.
13. Do not overreach. Keep proper footing
and balance at all times. Proper footing and
balance enables better control of the tool in
unexpected situations.
3
24. When servicing a tool, use only identical
replacement parts. Follow instructions in
the Maintenance section of this manual.
Use of unauthorized parts or failure to follow
Maintenance instructions may create a risk of
electric shock or injury.
SERVICE
23. Tool service must be performed only by
qualified repair personnel. Service or main-
tenance performed by unqualified personnel
could result in a risk of injury.
USE PROPER EXTENSION CORD: Make sure your extension cord is in good condition.
When using an extension cord, be sure to use one heavy enough to carry the current your
product will draw. An undersized cord will cause a drop in line voltage resulting in loss of
power and overheating. Table 1 shows the correct size to use depending on cord length and
nameplate ampere rating. If in doubt, use the next heavier gage. The smaller the gage num-
ber, the heavier the cord.
Table 1: Minimum gage for cord
Volts
120 V
Total length of cord in feet
Ampere Rating
25 ft.
50 ft.
100 ft.
150 ft.
More Than
Not More Than
AWG
0
6
10
12
6
18
18
16
14
16
16
16
12
16
14
14
14
12
12
10
12
16
Not Recommended
SPECIFIC SAFETY RULES
USB042-2
DO NOT let comfort or familiarity with product (gained from
repeated use) replace strict adherence to planer safety rules. If
you use this tool unsafely or incorrectly, you can suffer serious
personal injury.
1. Rags, cloth, cord, string and the like
should never be left around the work area.
6. Keep hands away from rotating parts.
7. Before using the tool on an actual work-
piece, let it run for a while. Watch for
vibration or wobbling that could indicate
poor installation or a poorly balanced
blade.
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.
8. Make sure the blade is not contacting the
workpiece before the switch is turned on.
4. Be sure the blade installation bolts are
securely tightened before operation.
9. Wait until the blade attains full speed
before cutting.
5. Hold the tool firmly with both hands.
4
10. Keep at least 200 mm (8”) away from the
tool at all times.
15. Always change both blades or covers on
the drum, otherwise the resulting imbal-
ance will cause vibration and shorten tool
life.
11. Always switch off and wait for the blades
to come to a complete stop before any
adjusting.
16. Wait for complete run-down before put-
ting the tool aside.
12. Never stick your finger into the chip
chute. Chute may jam when cutting damp
wood. Clean out chips with a stick.
17. Use only Makita blades specified in this
manual.
13. Do not leave the tool running. Operate the
tool only when hand-held.
18. Some material contains chemicals which
may be toxic. Take caution to prevent
dust inhalation and skin contact. Follow
material supplier safety data.
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.
SAVE THESE INSTRUCTIONS
WARNING:
MISUSE or failure to follow the safety rules stated in this
instruction manual may cause serious personal injury.
SYMBOLS
USD201-2
The followings show the symbols used for tool.
V .......................volts
....................no load speed
n
˚
A .......................amperes
....................Class II Construction
Hz .....................hertz
.../min................revolutions or reciprocation per
minute
................alternating current
5
FUNCTIONAL
DESCRIPTION
CAUTION:
•
Always be sure that the tool is switched off and
unplugged before adjusting or checking function on the
tool.
003869
Adjusting depth of cut
1
The depth of cut can be adjusted within a range of
0 - 3.5 mm (1/8”). Turn the knob on the front of the tool until
the pointer is aligned with the desired cutting depth on the
scale. Set the depth of a cut observing the maximum depth
which is limited by width according to the following table.
003870
2
Corelation of width of cut and maximun depth of cut
1. Knob
Width of cut
0 - 150 mm (0 - 5-7/8”)
Maximum depth of cut
3.5 mm (1/8”)
2. Scale plate
150 - 240 mm (5-7/8” - 9-1/2”)
240 - 312 mm (9-1/2” - 12-1/4”)
2 mm (3/32”)
1.5 mm (1/16”)
003871
Switch action
CAUTION:
2
•
Before plugging in the tool, always check to see that the
switch trigger actuates properly and returns to the “OFF”
1
position when released.
•
Switch can be locked in “ON” position for ease of
operator comfort during extended use. Apply caution
when locking tool in “ON” position and maintain firm
grasp on tool.
1. Switch trigger
2. 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 button.
To stop the tool from the locked position, pull the switch trig-
ger fully, then release it.
6
003873
Edge fence (Guide rule)
1
Edge fence is useful for minimizing a short run of cut by cut-
ting in a uniform width. The edge fence (guide rule) is pro-
vided on the side of the tool. Press two pins for the edge
fence (guide rule) so that the edge fence appears. Move the
tool forward while keeping the flat surface of the edge fence
in contact with the side of the workpiece.
2
To return the edge fence to an original position, push it
upwards from its underside.
1. Pins
2. Edge fence (Guide rule)
003874
Foot
After a cutting operation, raise the back side of the tool and a
foot comes under the level of the rear base. This prevents
the tool blades to be damaged.
1
3
2
1. Rear base
2. Foot
3. Planer blade
003875
Guideline of cutting blade passage
Both ends of the front base are a guideline to show the ends
of cutting blades passage.
1
1. Front base
7
ASSEMBLY
CAUTION:
•
Always be sure that the tool is switched off and
unplugged before carrying out any work on the tool.
003876
Removing or installing planer blades
CAUTION:
1
•
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.
2
•
•
Handle the blades very carefully. Use gloves or rags to
protect your fingers or hands when removing or installing
the blades.
1. Socket wrench
2. Installation bolt
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.
003878
To remove planer blades from the drum, loosen the eight
installation bolts by only one full turn with the socket wrench.
Then push and slide a planer blade sideways from the belt
side using the helm of the socket wrench.
1
To remove another planer blade, follow the same procedure
as above.
To install the blades, first clean out all chips or foreign matter
adhering to the drum or blades.
1. Socket wrench
003879
2
1
4
3
5
6
7
1. Drum plate
2. Installation bolt
3. Set plate screw
4. Set plate
5. Planer blade
6. Adjusting screw
7. Drum
8
003880
Insert the blade between the drum and the set plate from the
nozzle extraction side so that the blade will be centered from
both ends of the drum or set plate.
First tighten the eight installation bolts lightly and evenly
shifting from the center bolts to the outward bolts with the
socket wrench.
And then, tighten all of the installation bolts securely. Install
another blade in the same manner as above.
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.
Below are some examples of proper and improper settings.
EN0004-1
(A) Front base (Movable shoe)
(B) Rear base (Stationary shoe)
Although this side view cannot
show it, the edges of the blades
run perfectly parallel to the rear
base surface.
Correct setting
Nicks in surface
Gouging at start
(A)
(B)
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.
(A)
(A)
(B)
(B)
Cause: One or both blade edges
protrudes too far in relation
to rear base line.
Gouging at end
9
003879
Blade height adjustment
2
Blade height adjustment is usually not necessary. However,
if you notice that the blade edge is below the level of the rear
base or protrudes too far from the rear base, proceed as fol-
lows.
1
4
3
5
6
7
Loosen the eight installation bolts and the set plate screws.
Turn the adjusting screws clockwise to retract the blade or
counterclockwise to protrude it. After adjusting the blade
height, tighten the set plate screws and the eight installation
bolts securely.
1. Drum plate
2. Installation bolt
3. Set plate screw
4. Set plate
5. Planer blade
6. Adjusting screw
7. Drum
003882
Socket wrench storage
When not in use, store the socket wrench as shown in the
figure to keep it from being lost.
1
2
3
1. Socket wrench
2. Wrench holder
3. Rear base
10
003884
Nozzle assembly and joint (optional accessory)
Nozzle assembly and joint are used when connecting the
tool to vacuum cleaner.
When you wish to perform cleaner operation, connect a vac-
uum cleaner to your tool.
To connect vacuum cleaner, remove the chip guide from the
tool. Place nozzle assembly and joint in its place and then
tighten screws to secure them.
1
1. Chip guide
Connect a hose of vacuum cleaner to the joint.
003885
2
1
3
1. Joint
2. Nozzle assembly
3. Hose
OPERATION
003886
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.
2
1
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.
1. At the start of planing
2. At the end of planing
003887
Front roller
When performing repeated cuts, the use of the front roller
enables quick and effortless return of the tool toward an
operator by raising the back end of the tool so that the tool
blades do not contact a workpiece and then sliding tool on
the front roller.
1
1. Front roller
11
MAINTENANCE
CAUTION:
•
Always be sure that the tool is switched off and
unplugged before attempting to perform inspection or
maintenance.
001145
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 iden-
tical carbon brushes.
1
1. Limit mark
003888
Use a screwdriver to remove the brush holder caps. Take out
the worn carbon brushes, insert the new ones and secure
the brush holder caps.
1
2
To maintain product SAFETY and RELIABILITY, repairs, any
other maintenance or adjustment should be performed by
Makita Authorized or Factory Service Centers, always using
Makita replacement parts.
1. Screwdriver
2. Brush holder cap
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.
•
•
•
•
•
Planer blade
Triangular rule
Nozzle assembly
Joint
Socket wrench
12
First-Class
Postage
Required
Post Office will
not deliver
without proper
postage.
Makita U.S.A., Inc.
14930 Northam Street
La Mirada, CA 90638-5753
Fold
MAIL THIS PORTION
Your answers to the following questions are appreciated.
1.This product was purchased from:
3. How did you learn about this product:
Home Center
Other (
)
Magazine
Radio
Hardware/Lumber Store
Tool Distributor
From Dealer
Newspaper
Store Display
Catalog
Exhibition
From Friend
Previous Usage
Other (
Industrial Supply
Construction Supply
)
2. Use of the product is intended for:
4. Most favored points are:
Construction Trade
Industrial Maintenance
Home Maintenance
Hobby
Design
Repair Service
Durability
Power
Features
Size
Price
Other (
)
Other (
)
Makita Brand
5. Any comments:
DATE PURCHASED
MONTH
MODEL NO.
DAY
YEAR
SERIAL NO.
STATUS
SEX
Married Single
M
F
INTL.
LAST NAME / COMPANY NAME
STREET ADRESS
CITY
AREA
CODE
STATE
ZIP CODE
PHONE
40-49
Under 19
20-29
30-39
50-60
Over 60
AGE:
BE SURE TO COMPLETE THE CUSTOMER’S PORTION OF THIS FORM AND RETAIN FOR YOUR RECORDS.
Please return this portion by facsimile or mail.
Facsimile No: (714) 522-8133
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FACTORY SERVICE CENTERS
1-800-4-MAKITA
RETAIN THIS PORTION FOR YOUR RECORDS
ARIZONA
FLORIDA
MISSOURI
PENNSYLVANIA
1704 Babcock Blvd.
Pittsburgh, PA 15209
(412) 822-7370
3707 E. Broadway Rd., Ste. 6
Phoenix, AZ 85040
(602) 437-2850
750 East Sample Road
Pompano Beach, FL 33064
(954) 781-6333
9876 Watson Road
St. Louis, MO 63126-2221
(314) 909-9889
CALIFORNIA
GEORGIA
NEBRASKA
PUERTO RICO
41850 Christy St.
Fremont, CA 94538-5107
(510) 657-9881
4680 River Green Parkway NW
Duluth, GA 30096
(770) 476-8911
4129 S. 84th St.
Omaha, NE 68127
(402) 597-2925
200 Guayama St.
Hato Rey, PR 00917
(787) 250-8776
14930 Northam St.
La Mirada, CA 90638-5753
(714) 522-8088
ILLINOIS
NEVADA
3375 S. Decatur Blvd.
Suites. 22 - 24
Las Vegas, NV 89102
(702) 368-4277
TENNESSEE
1120 Elm Hill P.
Suile 170 Nashville, TN 372
(615) 248-3321
1450 Feehanville Dr.
Mt. Prospect, IL 60056-6011
(847) 297-3100
1970 Fulton Avenue
Sacramento, CA 95825
(916) 482-5197
MARYLAND
TEXAS
7674 Clairemont Mesa Blvd.
San Diego, CA 92111
(858) 278-4471
7397 Washington Boulevard,
Suite 104 Elkridge, MD 21075
(410) 796-4401
NEW JERSEY
12801 Stemmons Fwy Ste. 809
Farmers Branch, TX 75234
(972) 243-1150
251 Herrod Blvd.
Dayton, NJ 08810-1539
(609) 655-1212
16735 Saticoy St., Ste. 105
Van Nuys, CA 91406
(818) 782-2440
12701 Directors Dr.
Stafford, TX 77477-3701
(281) 565-8665
MASSACHUSETTS
232 Providence Hwy.
Westwood, MA 02090
(781) 461-9754
NEWYORK
4917 Genessee Street
Cheektowaga, NY 14225
(716) 685-9503
3453 IH-35 North, Ste. 101
San Antonio, TX 78219
(210) 228-0676
COLORADO
11839 E. 51st Ave.
Denver, CO 80239-2709
(303) 371-2850
MINNESOTA
6427 Penn Ave. South
Richfield, MN 55423
(612) 869-5199
OREGON
828 19th Avenue, N.W.
Portland, OR 97209
(503) 222-1823
WISCONSIN
Lincoln Plaza Shopping Ctr.
2245 S. 108th St. West Allis, WI
53227
(414) 541-4776
CUSTOMER’S RECORD
Date Purchased
When you need service: Send
complete tool (prepaid) to one
of the Makita Factory Service
Centers listed, or to an Authorized
Makita Service Center. Be sure
to attach a letter to the outside of
the carton detailing the problem
with your tool.
Dealer’s Name & Address
Model No.
Serial No.
15
WARNING
Some dust created by power sanding, sawing, grinding, drilling, and other
construction activities contains chemicals known to the State of California
to cause cancer, birth defects or other reproductive harm. Some examples
of these chemicals are:
• lead from lead-based paints,
• crystalline silica from bricks and cement and other masonry products, and
• arsenic and chromium from chemically-treated lumber.
Your risk from these exposures varies, depending on how often you do this
type of work. To reduce your exposure to these chemicals: work in a well
ventilated area, and work with approved safety equipment, such as those
dust masks that are specially designed to filter out microscopic particles.
MAKITA LIMITED ONE YEAR WARRANTY
Warranty Policy
Every Makita tool is thoroughly inspected and tested before leaving the factory. It is warranted to be free of
defects from workmanship and materials for the period of ONE YEAR from the date of original purchase.
Should any trouble develop during this one year period, return the COMPLETE tool, freight prepaid, to one of
Makita’s Factory or Authorized Service Centers. If inspection shows the trouble is caused by defective
workmanship or material, Makita will repair (or at our option, replace) without charge.
This Warranty does not apply where:
• repairs have been made or attempted by others:
• repairs are required because of normal wear and tear:
• the tool has been abused, misused or improperly maintained:
• alterations have been made to the tool.
IN NO EVENT SHALL MAKITA BE LIABLE FOR ANY INDIRECT, INCIDENTAL OR CONSEQUENTIAL
DAMAGES FROM THE SALE OR USE OF THE PRODUCT. THIS DISCLAIMER APPLIES BOTH DURING
AND AFTER THE TERM OF THIS WARRANTY.
MAKITA DISCLAIMS LIABILITY FOR ANY IMPLIED WARRANTIES, INCLUDING IMPLIED WARRANTIES OF
“MERCHANTABILITY” AND “FITNESS FOR A SPECIFIC PURPOSE,” AFTER THE ONE YEAR TERM OF THIS
WARRANTY.
This Warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above
limitation or exclusion may not apply to you. Some states do not allow limitation on how long an implied
warranty lasts, so the above limitation may not apply to you.
Makita Corporation
3-11-8, Sumiyoshi-cho,
Anjo, Aichi 446-8502 Japan
884477-067
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