Makita 3612BR User manual

1/2" MODEL 3612BR
1/2" MODEL 3612BRA
Equipped with electric brake
Collet chuck
capacity
1i2"
INSTRUCTION MANUAL
-
Main body No load speed 0 vera I I Net
stroke (RPM) length weight
287 mm 5.7 kg
11 1-5/16") (12.7
lbs)
~__~~~-._____.~~~~~___~~ ~~
23,000
0 65"
(0 ~~ 2-9/16")
DOUBLE
INSULATION

IMPORTANT
SAFETY INSTRUCTIONS
(For All Tools)
WARNING:
WHEN USINGELECTRICTOOLS, BASIC SAFETY
PRECAUTIONSSHOULDALWAYS BE FOLLOWEDTO REDUCE
THE RISK OF FIRE, ELECTRIC SHOCK, AND PERSONAL
INJURY, INCLUDING THE FOLLOWING:
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. Whennotinuse, tools should be stored in dry, andhigh
or locked-up place
- out of reach of children.
5. DON'T FORCETOOL. It will do thejob better andsafer atthe rate for which
it was intended.
6. USE RIGHT TOOL. Don't force small tool or attachment to do the job of a
heavy-dutytool. Don't use toolfor purpose not intended; for example, don't
use circular saw for cutting tree limbs or logs.
7. DRESS PROPERLY. Don't wear loose clothing 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. Nevercarry tool by cordor 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. Inspect tool cords periodicallyand if 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, 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 andadjusting wrenches are removedfromtool before turning
it on.
15. AVOID UNINTENTIONAL STARTING. Don't carrytool
with finger onswitch.
Be sure switch is OFF when
plugging in.
16. EXTENSION CORDS. 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 showsthe
correct size to usedependingoncord lengthand nameplate ampere rating.
If
in doubt, use the next heavier gage. The smaller the gage number, the
heavier the cord.
TABLE 1 MINIMUM GAGE FOR CORD SETS
Total Length of Cord in Feet
0 - 25
Ampere Rating
More Not More
Than Than
26 - 50 51 - 100 101 - 150
0- 6
6- 10
10
- 12
12 16
18
18
16
14
16 16 14
16 14 12
16 14 12
12
Not Recommended
17. OUTDOOR USE EXTENSION CORDS. Whentool isusedoutdoors, useonly
extension cords intended for use outdoors and
so marked.
18. STAY ALERT. Watch what youare doing, usecommon sense. Don't operate
tool when you are tired.
19. CHECK DAMAGED PARTS. Beforefurther 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 itsintendedfunction. Check for alignment of
movingparts, binding
of movingparts, breakageof parts, mounting, andany
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.
20. GUARD AGAINST ELECTRIC SHOCK. Prevent body contact with grounded
surfaces. For example; pipes, radiators, ranges, refrigerator enclosures.
21 . REPLACEMENTPARTS. Whenservicing. useonly identical replacement parts.
22. 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,
reversethe plug. If
it stilldoes notfit, contact a qualified electriciantoinstall
the proper outlet. Do not change the plug
in any way.
3

VOLTAGE WARNING: Before connecting the tooltoa 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 to the 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.
ADDITIONAL SAFETY RULES
1. Handle the bits very carefully.
2. Check the bit carefully for cracks or damage before operation. Replace
3. Avoid cutting nails. Inspect for and remove all nails from the workpiece be-
4. Hold the tool firmly with both hands.
5. Keep hands away from rotating parts.
6. Makesure the bit is notcontacting the workpiece before the switch is turned
7. Before using the tool on an actual workpiece, let it run for a while. Watch
8. Be careful of the bit rotating direction and the feed direction.
9. Do not leave the tool running. Operate the tool only when hand-held.
cracked or damaged bit immediately.
fore operation.
on.
for vibration or wobbling that could indicate improperly installed bit.
IO. Always switch off and wait for the bit to come to a complete stop before
11. Do not touch the bit immediately after operation; it may be extremely hot
removing the tool from workpiece.
and could burn your skin.
SAVE THESE INSTRUCTIONS.
4

Installingor removing router bit
CAUTION :
Always be sure that the tool is switched off and unpluggedbefore installingor removing
the bit.
Insert the bit
all the way into the collet
cone and withdraw
it very slightly (approx.
2 mm; 1/16"). Press the shaft lock to keep
the shaft stationary and use the wrench to
tighten the collet nut securely. When using
smaller shank bits, first insert the appro-
priate collet sleeve into the collet cone,
then install the bit
as mentionedabove.
To remove the bit, follow the installation
procedure in reverse.
CAUTION
:
Do not tighten the collet nut without inserting a bitor install smaller shank bits without
using
a collet sleeve. Either can lead to breakage of the collet cone.
Adjusting depth of cut
Place the tool on a flat surface. Loosenthe
lock lever and lower the tool body until
the bit just touches the flat surface. Press
the lock lever down to lock the tool body.
Now lower the stopper pole until
it makes
contactwiththe stopper block.Thestopper
pole can be moved rapidly by depressing
the fastfeed button.
Raise the stopper pole
until the desired depth of cut
is obtained.
The depth of cut
is equal to the distance
between the stopper pole and the stopper
block. Stopper
pole travel can be checked
with the scale label (1mm or about 3/64"
per graduation) on the tool body. Minute
depth adjustments can be obtained by turning the stopper pole
(1.5 mm or about 1/16"
per turn). The stopper block has the adjusting hex bolts which move 1mm (about3/64")
per turn. They are convenient for making stepped cuts. To adjust the hex bolts, first
loosen the hex nuts on the hex bolts with the wrench and then turn the hex bolts. After
obtainingthe desired position, tighten the hex nuts.
5

By turning the nylon nut, the upper limit
of the tool body can be adjusted. When the
tip of the bit
is retracted more than re-
quired in relation to the base platesurface,
turn thenylonnut to lower the upper limit.
CAUTION
:
0 Do not lower the nylon nut too low or the bit will protrude dangerously.
0 Before operating the tool, check to be sure that the router automatically rises to the
upper limit.
0Since excessive cutting may cause overload of the motor or difficulty incontrolling the
tool, the depth of cut should not be more than
15 mm (5/8") at a pass when cutting
grooves. When you wish to cut grooves more than 15 mm (5/8") deep, make several
passes with progressively deeper bitsettings.
Switch action
To start the tool, move the switch lever
to the "ON" position.
To stop, move the
switch lever to the
"OFF" position.
CAUTION
:
Make sure the shaft lock is released before
the switch
is turned on.
Operation
0Set the tool base on the workpiece to be cut without the bit making any contact. Then
turn the tool on and wait until the bit attains full speed. Lower the tool body and
move the tool forward over the workpiece surface, keeping the tool base flush and
advancing smoothly until the cutting
is complete.
0 When doing edge cutting, the workpiece surface should be on the left side of the bit in
the feed direction.
(see the figure below).
Bit revolving
direction
Feed direction
(Viewfrom the topof the tool)
Correct bit feed direction
6

NOTE :
0 Moving the tool forward too fast may cause a poor quality of cut, or damage tothe bit
or motor. Moving the tool forward too slowly may burn and mar the cut. The proper
feed rate will depend on the bit
size, the kind of workpiece and depth of cut. Before
beginning the cut on the actual workpiece,
it is advisable to make a sample cut on a
piece of scrap lumber. This will show exactly how the cut will look as well as enable you
tocheck dimensions.
When using the straight guide or the trimmer guide, be sure to install it on the right side
inthe feed direction. This will help to keep
it flush with the side of the workpiece.
Straight guide (Optional accessory)
The straight guide is effectively used for
straight cuts when chamfering or grooving.
Install the straight guide on the guide
holder with the wing bolt
(B). Tighten the
wing bolt
(B) only tight enough to hold
the straight guide temporarily. Then insert
the guide holder into the holes in the tool
base and tighten the wing bolts (A).Adjust
the distance between the bit and the
straight guide by turning the fine adjusting
screw (1.5 mm or about 1/16” per turn.)
At the desired distance, tighten the wing
bolt
(B) to secure the straight guide in
place.
When cutting, move the tool with the
straight guide flush with the side of the
workpiece.
Wider straight guide
of desired dimensions
may be made by usingthe convenient holes
in the guide to bolt on extra pieces of
wood.
When using
a board-jointing bit, attach
pieces of wood to the straight guide which
have
a thickness of more than 15 mm
(5/8”)
so that the bit does not strike the
straight guide.
Wins bolt (6)
Wing bolt (A)
Straightguide
More than
115” (5’8”)
7

Trimmer guide (Optionalaccessory)
Trimming, curved cuts in veneers for fur-
niture and the like can be done easily with
the trimmer guide. The guide roller rides
the curve and assures
a fine cut.
Install the trimmer guide on the guide
holder with the wing bolt
(6). Tightenthe
wing bolt
(B) only tight enough to hold the
trimmer guide temporarily.Then insertthe
guide holder into the holes
in the tool base
and tighten the wing bolts (A).Adjust the
distance between the bit and the trimmer
guide by turning the fine adjusting screw
(1.5 mm or about 1/16" per turn). At the
desired diestance, tighten the wing bolt
(6)
to secure the trimmer guide in place.When
adjusting the guide roller up on down,
loosen
the wing bolt (C). After adjusting
it, tightenthe wing bolt (C) securely.
When cutting,
move the tool with the guide
roller ridingthe side
of the workpiece.
Wing bolt (C) I \ Guide roller
4 Guide roller
8

Templet guide(Optionalaccessory)
The templet guide provides
a sleeve through
which the bit passes, allowing
use of the
router with templet patterns.
To install the templet guide, loosen the
screws on the tool base, insert the templet
Base plate Templet guide
I
guide and then tighten the screws
Secure the templet tothe workpiece. Place
the tool on the templet and move the tool
with the templet guide sliding along the
side
of the templet.
I Screw V
Bit ~ Tjmplet guide
9

MAINTENANCE
CAUTION :
Always be sure that the tool is switched off and unpluggedbefore attempting to perform
inspection or maintenance.
Replacingcarbon 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.
If ohter type of carbon brushes are em-
ployed in tools equipped with an electric
brake, the electric brake may not operate
properly.
/
Limit mark
Use a screwdriver to remove the brush 1
holder caps. Take out the worn carbon
brushes, insert the newones and secure the
brush holder caps.
Brush holder cap
71
I I
Screwdriver
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 replacementparts.