Makita 3620 User manual

INSTRUCTION MANUAL
WARNING:
For your personal safety, READ and UNDERSTAND before using.
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.
Router
MODEL 3620
003251
DOUBLE
INSULATION

2
SPECIFICATIONS
• Manufacturer reserves the right to change specifications without notice.
• Specifications may differ from country to country.
GENERAL SAFETY RULES USA002-2
(For All Tools)
WARNING:
Read and understand all instructions. Failure to follow all
instructions listed below, may result in electric shock, fire and/or
serious personal injury.
SAVE THESE INSTRUCTIONS
Work Area
1. Keep your work area clean and well lit.
Cluttered benches and dark areas invite acci-
dents.
2. Do not operate power tools in explosive
atmospheres, such as in the presence of
flammable liquids, gases, or dust. Power
tools create sparks which may ignite the dust
or fumes.
3. Keep bystanders, children, and visitors
away while operating a power tool. Distrac-
tions can cause you to lose control.
Electrical Safety
4. Double insulated tools are equipped with
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
still does not fit, contact a qualified elec-
trician to install a polarized outlet. Do not
change the plug in any way. Double insula-
tion eliminates the need for the three wire
grounded power cord and grounded power
supply system.
Model 3620
Collet capacity 1/4”
Plunge capacity 35 mm (1 - 3/8”)
No load speed (RPM) 29,000/min.
Overall length 211 mm (8 - 5/16”)
Net weight 2.4 kg (5.3 lbs)

3
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.
6. Do not expose power tools to rain or wet
conditions. Water entering a power tool will
increase the risk of electric shock.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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. To o l s a r e
dangerous in the hands of untrained users.
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.
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.
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.

4
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.
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.
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.
SPECIFIC SAFETY RULES USB013-3
DO NOT let comfort or familiarity with product (gained from
repeated use) replace strict adherence to router safety rules. If
you use this tool unsafely or incorrectly, you can suffer serious
personal injury.
1. Hold tool by insulated gripping surfaces
when performing an operation where the
cutting tool may contact hidden wiring or
its own cord. Contact with a “live” wire will
make exposed metal parts of the tool “live”
and shock the operator.
2. Wear hearing protection during extended
period of operation.
3. Handle the bits very carefully.
4. Check the bit carefully for cracks or dam-
age before operation. Replace cracked or
damaged bit immediately.
5. Avoid cutting nails. Inspect for and
remove all nails from the workpiece
before operation.
6. Hold the tool firmly with both hands.
7. Keep hands away from rotating parts.
8. Make sure the bit is not contacting the
workpiece before the switch is turned on.
Table 1: Minimum gage for cord
Ampere Rating Volts Total length of cord in feet
120 V 25 ft. 50 ft. 100 ft. 150 ft.
More Than Not More Than AWG
0 6 18 16 16 14
6 10 18161412
10 12 16 16 14 12
12 16 14 12 Not Recommended

5
9. Before using the tool on an actual work-
piece, let it run for a while. Watch for
vibration or wobbling that could indicate
improperly installed bit.
10. Be careful of the bit rotating direction and
the feed direction.
11. Do not leave the tool running. Operate the
tool only when hand-held.
12. Always switch off and wait for the bit to
come to a complete stop before removing
the tool from workpiece.
13. Do not touch the bit immediately after
operation; it may be extremely hot and
could burn your skin.
14. Always lead the power supply cord away
from the tool towards the rear.
15. Do not smear the tool base carelessly with
thinner, gasoline, oil or the like. They may
cause cracks in the tool base.
16. Draw attention to the need to use cutters
of the correct shank diameter and suitable
for the speed of the tool.
17. Some material contains chemicals which
may be toxic. Take caution to prevent dust
inhalation and skin contact. Follow mate-
rial supplier safety data.
SAVE THESE INSTRUCTIONS
WARNING:
MISUSE or failure to follow the safety rules stated in this
instruction manual may cause serious personal injury.

6
SYMBOLS USD201-2
The followings show the symbols used for tool.
V....................... volts
A....................... amperes
Hz ..................... hertz
................ alternating current
....................no load speed
....................Class II Construction
.../min................revolutions or reciprocation per
minute
n˚

7
FUNCTIONAL
DESCRIPTION CAUTION:
• Always be sure that the tool is switched off and
unplugged before adjusting or checking function on the
tool.
Adjusting the depth of cut
Place the tool on a flat surface. Loosen the screw securing
the stopper pole.
Loosen the lock lever and lower the tool body until the bit just
touches the flat surface. Tighten the lock lever to lock the tool
body.
Next, lower the stopper pole until it makes contact with the
adjusting hex bolt. Align the depth pointer with the “0” gradu-
ation.
Raise the stopper pole until the desired depth of cut is
obtained. The depth of cut is indicated on the scale (1 mm or
1/16’’ per graduation) by the depth pointer. Then tighten the
screw to secure the stopper pole.
Now, your predetermined depth of cut can be obtained by
loosening the lock lever and then lowering the tool body until
the stopper pole makes contact with the adjusting hex bolt.
CAUTION:
• Since excessive cutting may cause overload of the motor
or difficulty in controlling the tool, the depth of cut should
not be more than 15 mm (9/16”) at a pass when cutting
grooves with an 8 mm (5/16”) diameter bit. (Note: When
cuttinggrooveswitha20mm(13/16”)diameterbit,the
depth of cut should not be more than 5 mm (3/16”) at a
pass.)
Whenyouwishtocutgroovesmorethan15mm(9/16”)
1. Stopper pole
2. Screw
1
2
003252
1. Lock lever
1
003253
1. Depth pointer
2. Screw
3. Stopper pole
4. Adjusting hex bolt
5. Stopper block
1
2
34
5
003254

8
deep with an 8 mm (5/16”) diameter bit or more than 5
mm(3/16”)deepwitha20mm(13/16”)diameterbit,
make several passes with progressively deeper bit
settings.
Stopper block
The stopper block has three adjusting hex bolts which raise
or lower 0.8 mm (about 1/32”) per turn. You can easily obtain
three different depths of cut using these adjusting hex bolts
without readjusting the stopper pole.
Adjust the lowest hex bolt to obtain the deepest depth of cut,
following the method of “Adjusting depth of cut”. Adjust the
two remaining hex bolts to obtain shallower depths of cut.
The differences in height of these hex bolts are equal to the
differences in depths of cut.
To adjust the hex bolts, first loosen the hex nuts on the hex
bolts with the wrench and then turn the hex bolts. After
obtaining the desired position, tighten the hex nuts while
holding the hex bolts in that desired position. The stopper
block is also convenient for making three passes with pro-
gressively deeper bit settings when cutting deep grooves.
CAUTION:
• When using a bit having total length of 60 mm (2 - 3/8”)
or more, or edge length of 35 mm (1 - 3/8”) or more, the
depth of cut cannot be adjusted as previously
mentioned. To adjust, proceed as follows:
Loosen the lock lever and carefully adjust bit protrusion
below the tool base to the desired depth of cut by
moving the tool body up or down. Then re-tighten the
lock lever to lock the tool body at that depth of cut. Keep
the tool body locked at this position during use. Since
the bit always protrudes from the tool base, be careful
when handling the tool.
Adjusting the lock lever
The locked position of the lock lever is adjustable. To adjust
it, loosen the lock lever 3/4 turn and press the center of the
locklever.Thehexnutwillcomeout.Setthehexnuttothe
desired position and tighten the lock lever.
1. Hex nut
1
003255

9
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.
To start the tool, simply pull the switch trigger. Release the
switch trigger to stop.
ASSEMBLY CAUTION:
• Always be sure that the tool is switched off and
unplugged before carrying out any work on the tool.
Installing or removing router bit
Insert the bit all the way into the collet cone and tighten the
collet nut securely with the two wrenches.
To remove the bit, follow the installation procedure in reverse.
CAUTION:
• Do not tighten the collet nut without inserting a bit, or the
collet cone will break.
Dust nozzle (optional accessory)
When you wish to perform clean cutting operation, use the
dust nozzle. Install the dust nozzle on the router base using
the two screws and connect a vacuum cleaner to the dust
nozzle.
OPERATION Set 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.
When doing edge cutting, the workpiece surface should be
on the left side of the bit in the feed direction.
1. Switch trigger
1
003256
003257
1. Dust nozzle
2. Hose of vacuum cleaner
3. Screws
1
2
3
003258

10
NOTE:
• Moving the tool forward too fast may cause a poor
quality of cut, or damage to the 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 to check
dimensions.
• When using the straight guide, be sure to install it on the
right side in the feed direction. This will help to keep it
flushwiththesideoftheworkpiece.
Straight guide
The straight guide is effectively used for straight cuts when
chamfering or grooving.
To install the straight guide, insert the guide bars into the
holes in the tool base. Adjust the distance between the bit
and the straight guide. At the desired distance, tighten the
wing bolts to secure the straight guide in place.
1. Workpiece 2. Bit revolving direction
3.Viewfromthetopofthetool 4.Feeddirection
12
3
44
2
001984
003259
1. Straight guide
2. Guide bar
3. Wing bolt
1
23
003260

11
When cutting, move the tool with the straight guide flush with
thesideoftheworkpiece.Ifthedistance(A)betweenthe
side of the workpiece and the cutting position is too wide for
the straight guide, or if the side of the workpiece is not
straight, the straight guide cannot be used. In this case,
firmly clamp a straight board to the workpiece and use it as a
guide against the router base. Feed the tool in the direction
of the arrow.
Templet guide (optional accessory)
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 guide and then tighten the screws.
Secure the templet to the workpiece. Place the tool on the
templet and move the tool with the templet guide sliding
along the side of the templet.
A
003261
003262
1. Screw
2. Base plate
3. Templet guide
12
3
003263
1. Bit
2. Templet guide
3. Base
4. Templet
5. Workpiece
12
3
4
5
003264

12
MAINTENANCE CAUTION:
• Always be sure that the tool is switched off and
unplugged before attempting to perform inspection or
maintenance.
To maintain product SAFETY and RELIABILITY, repairs, car-
bon brush inspection and replacement, any other mainte-
nance or adjustment should be performed by Makita
Authorized or Factory Service Centers, 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.
• Straight & groove forming bits
• Edge forming bits
• Laminate trimming bits
• Straight guide
• Trimmer guide assembly
• Templet guides
• Templet guide adapter
• Lock nut
•Colletcone1/4”
• Dust nozzle
• Wrench 8
• Wrench 13
• Wrench 22

13
Fold
Cut
Stamp
Timbre
Makita Canada Inc.
1950 Forbes Street,
Whitby, Ontario
L1N 7B7

14
Your answers to the following questions are appreciated.
Date Purchased Model No.
Serial No.
Initial Last Name
Street Address
City Province
AGE:
Male Female MarriedSingle
Month Day Year 20
Under 19 20-29 30-39 40-49 Over 50
Paste Paste Paste Paste Paste Paste Paste Paste
Paste Paste Paste Paste Paste Paste
Paste Paste Paste Paste Paste Paste
1. This product was purchased from?
Industrial Supply
Other ( )Tool Distributor
Hardware/lumber Store
2. Use of the product is intended for?
5. Any comments?
Home maintenance
Other ( )Industrial maintenance
Construction trade
3. How did you first learn of Makita Power Tools?
Catalog
Other ( )From dealer
Magazine/Newspaper
Store display
4. Most favored points are?
Makita Brand
PowerFeatures
Design
Other ( )Size
Price
Occupation:
Dealer's Name & Address:
Postal Code
Certificate of Warranty
Mail to Makita

15
Factory Service Centres
For the authorized service centre nearest you please refer to the local yellow pages directory under “tools”or con-
tact our customer service department (Tel) 1-800-263-3734
When you need service...
•Explain the problem in a letter
•Enclose the letter with the tool
•Package carefully and send prepaid
to the nearest Makita factory or
authorized service centre
CUSTOMER RECORD
DATE
PURCHASED:
DEALER’S NAME
& ADDRESS:
MODEL NO.:
SERIAL NO.:
Head Office: 1950 Forbes St., Whitby, Ontario, L1N 7B7
(905) 571 - 2200 1-800-263-3734
Regional Office: 11771 Hammersmith Way, Richmond
(604) 272 - 3104 1-800-663-0909B.C. V7A 5H6
Regional Office: 6389 boul, Couture, St. Leonard, Quebec
(514) 323 - 1223 1-800-361-7049H1P 3J5(Montreal)
Dartmouth: 202 Brownlow Avenue (902) 468 - 7064 1-888-625-4821Dartmouth, N.S., B3B 1T5
Ville St. Laurent: 1140 Rue Bégin, Ville St. Laurent, Quebec
(514) 745 - 5025 1-888-745-5025H4R 1X1(Montreal)
Les Saules: 1200 St. Jean Baptiste, Unit 106, Les Saules,
(418) 871 - 5720 1-800-663-5757Quebec, G2E 5E8(Quebec)
Nepean: 203 Colonnade Road, Unit #6, Nepean,
(613) 224 - 5022 1-888-560-2214Ontario K2E 7K3(Ottawa)
London: 317 Adelaide St. S., Unit 117, London,
(519) 686 - 3115 1-800-571-0899Ontario, N5Z 3L3
Whitby: 1950 Forbes St., Whitby, Ontario, L1N 7B7
(905) 571 - 2200 1-800-263-3734
Mississauga: 6350 Tomken Rd., Unit 8, Mississauga,
(905) 670 - 7255 1-800-221-9811Ontario, L5T 1Y3
Calgary: #8-6115 Fourth St. S.E., Calgary(403) 243 - 3995 1-800-267-0445Alberta, T2H 2H9
Richmond: 11771 Hammersmith Way, Richmond, B.C.,
(604) 272 - 3104 1-800-663-0909V7A 5H6
Edmonton: 11614-149 Street, Edmonton, Alberta,
(780) 455 - 6644 1-888-455-6644T5M 3R3
Coquitlam: 2131 Hartley Ave., #103 (604) 525 - 7434 1-800-266-7738Coquitlam, B.C. V3K 2Z3
Winnipeg: 1670 St. James Street, Winnipeg, Manitoba,
(204) 694 - 0402 1-800-550-5073R3H 0L3
Saskatoon: 206A-2750 Faithful Avenue Saskatoon,
(306) 931 - 0111 1-888-931-0111Saskatchewan, S7K 6M6

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 Centres.
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 normal maintenance is required,
• repairs have been made or attempted by others,
• the tool has been abused, misused or improperly maintained,
• alterations have been made to the tool.
“The Makita Warranty is the only and the entire written warranty given by Makita for the Makita tools. No dealer or his agent
or employee is authorized to extend or enlarge upon this warranty by any verbal or written statement or advertisement.”
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 rights. The provisions contained in this warranty are not intended to limit, modify, take away
from, disclaim or exclude any warranties set forth in any provincial legislation. To the extent required by law, the provisions in
any provincial or federal legislation with respect to warranties take precedence over the provisions in this warranty.”
MAKITA LIMITED ONE YEAR WARRANTY
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 Corporation
3-11-8, Sumiyoshi-cho,
Anjo, Aichi 446-8502 Japan
883585-237