Makita 7104L User manual

INSTRUCTION MANUAL
WARNING:
For your personal safety, READ and UNDERSTAND before using.
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.
ENGLISH
Chain Mortiser
MODEL 7104L
006289

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 END001-1
The following show the symbols used for the tool. Be
sure that you understand their meaning before use.
..................Only for EU countries
Do not dispose of electric equipment
together with household waste mate-
rial!
In observance of European Directive
2002/96/EC on waste electric and
electronic equipment and its imple-
mentation in accordance with
national law, electric equipment that
have reached the end of their life
must be collected separately and
returned to an environmentally com-
patible recycling facility.
Intended use
The tool is intended for cutting mortise in 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. This
tool should be grounded while in use to protect the oper-
ator from electric shock. Use only three-wire extension
cords which have three-prong grounding-type plugs and
three-pole receptacles which accept the tool’s plug.
For European countries only
Noise and Vibration
The typical A-weighted noise levels are
sound pressure level: 90 dB (A)
sound power level: 103 dB (A)
– Wear ear protection. –
The typical weighted root mean square acceleration
value is not more than 2.5 m/s2.
These values have been obtained according to
EN61029.
EC-DECLARATION OF CONFORMITY
We declare under our sole responsibility that this product
is in compliance with the following standards of stand-
ardized documents, EN61029, EN55014, EN61000 in
accordance with Council Directives, 73/23/EEC, 89/336/
EEC, 98/37/EC.
Yasuhiko Kanzaki CE 2005
Director
MAKITA INTERNATIONAL EUROPE LTD.
Michigan Drive, Tongwell, Milton Keynes, Bucks MK15
8JD, ENGLAND
Responsible manufacturer:
Makita Corporation Anjo Aichi Japan
Model 7104L
Capacities
Max. hole length (Longitudinal) 130 mm
Max. hole depth 155 mm
Width of applicable workpiece 80 mm - 308 mm
Chain speed (min-1)300 m
Dimensions (L × W × H) 512 mm × 298 mm × 513 mm
Net weight 17 kg
Safety class Class I

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 ENB093-1
1. Use this tool only to cut holes in wood.
2. This tool is for cutting holes in flat-sur-
faced wood. Never use it for cutting holes
in a log.
3. Wear ear protectors.
4. Handle the cutter chain carefully; it is very
sharp.
5. Place the workpiece on wood blocks or
short beams to prevent the cutter chain
from hitting the ground, floor, etc., caus-
ing damage to the cutter chain at the time
of hole breakthrough.
6. Check the cutter chain carefully for cracks
or damage before operation.
Replace cracked or damaged cutter chain
immediately.
7. Secure the tool to the workpiece firmly.
8. Inspect for and remove nails or foreign
matter from the workpiece before opera-
tion.
9. Do not operate the tool with the safety
cover open.
10. Do not wear gloves during operation.
11. Keep hands away from moving parts.
12. Remove the tool from the workpiece after
operation to keep it from falling off and
possibly causing injury.
13. Don’t abuse cord. Never yank cord to dis-
connect it from the receptacle. Keep cord
away from heat, oil, water and sharp
edges.
14. PROPER GROUNDING. This tool should
be grounding while in use to protect the
operator from electric shock.
15. EXTENSION CORDS. Use only three-wire
extension cords which have three-prong
grounding-type plugs and three-pole
receptacles which accept the tool’s plug.
Replace or repair damaged or worn cord
immediately.
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
Loosen the wing bolt on the stopper. Move the stopper to the desired position
and tighten the wing bolt. When tightened, the tip of the wing bolts should con-
tact the flat surface of the stopper pole. The numbers indicated on the stopper
pole are in cm units (3 mm per graduation).
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 prevent the switch trigger from being accidentally pulled, a lock-off button is
provided. To start the tool, push in the lock-off button and pull the switch trig-
ger. 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 cutter chain
WARNING:
• Always be sure that the tool is switched off and unplugged before
installing or removing the cutter chain.
• Always close the chain cover after installing, removing or adjusting the
cutter chain.
To install the cutter chain, open the chain cover. Loosen the hex bolt securing
the chain bar and the adjusting screw.
1. Wing bolt
2. Stopper pole
3. Stopper
1
2
3
005999
1. Lock-off button
2. Switch trigger
1
2
006300
1. Adjusting screw
2. Chain bar
3. Chain cover
4. Hex bolt
1
2
3
4
006290

6
Orient the cutters in the direction of the arrow on the tool (rotational direction).
Attach the cutter chain to the sprocket first and then to the chain bar. Semi-
tighten the hex bolt.
Turn the adjusting screw to increase the tension on the cutter chain. Pull the
middle of the cutter chain lightly. When there is a clearance of approx. 5 -
6 mm between the chain bar and the cutter chain, the tension on the cutter
chain is adequate.
After adjusting the tension, tighten the hex bolt firmly to secure the chain bar.
Additionally tighten slightly the adjusting screw. Close the chain cover.
To remove the cutter chain, follow the installation procedures in reverse.
Securing tool to workpiece
Loosen the vise lever and move the rear vise backward. Place the tool on the
workpiece so that the front vise contacts the side of the workpiece. Move the
rear vise forward until the distance between the rear vise and the workpiece is
3 - 8 mm. Tighten the vise lever to secure the rear vise. Move the tool so that
the “0”on the indication plate is aligned with the cutting line (A). Push the lever
(A) down fully to secure the workpiece.
1. Arrow
2. Sprocket
3. Hex bolt
1
2
3
006291
5-6mm
006003
1. Lever (A)
2. Vise lever
3. Rear vise
1. Setting handle
2. Front vise
1
23
3-8mm
006004
12
006005

7
Turn the setting handle until the front edge of the yellow indicator plate is
aligned with the cutting line (B).
OPERATION
Grasp firmly the grips on either side. Switch on the tool and wait until the cutter
chain attains full speed. Then release the hook and lower the tool head to cut
in the workpiece. Do not apply excessive pressure to the tool. This may not
only decrease the working efficiency but also cause a dangerous reaction.
Feed slowly at the beginning of a cutting operation, at the time of hole break-
through and when cutting a knot in the workpiece. After cutting, gently raise
the tool head until you can hook the tool head back onto the hook. Then switch
off the tool. Raise the lever (A) and remove the tool from the workpiece.
WARNING:
•Always hook the tool head back onto the hook when not operating the
tool.
•Never attempt to cut a twisted or warped workpiece which the tool is not
secured firmly to.
Adjusting indicator plate and indication plate
The yellow indicator plate and indication plate are factory adjusted for the
standard equipped cutter chain 16.5 mm. If the alignment is off, for some rea-
son, or when using another size cutter chain, loosen the screws and adjust the
yellow indicator plate and indication plate.
Enlarging hole
1. Transverse (width) enlargement
A hole can be enlarged transversely by adjusting the gauge plate. Max. expan-
sion of hole width is 15 mm.
Example:
When cutting a hole 25 mm wide using a cutter chain 16.5 mm,
proceed as follows:
•Push the lever (B) away from you. Loosen the hex bolts
securing the gauge plate.
•Adjust the gauge plate so that the travel distance (D) is
8.5 mm; that is, 25 mm - 16.5 mm = 8.5 mm. Tighten the hex
bolts to secure the gauge plate.
•Cut the first hole with the lever (B) pushed away from you.
Then pull the lever (B) toward you and cut again to enlarge
the hole.
NOTE:
•The gauge plate is factory adjusted for cutting a hole 30 mm wide.
1. Indicator plate
2. Indication plate
3. Cutting line (A)
4. Cutting line (B)
12
34
006006
1. Hook
1
006007
1. Hex bolts
2. Gauge plate
3. Travel distance (D)
4. Lever (B)
1
2
3
4
006008

8
2. Longitudinal (length) enlargement
Hole length can be determined in three steps shown in the table below.
C00239
NOTE:
•A hole a little longer than predetermined may be cut depending upon the
cutter chain tension.
•The adjusting hex bolts are factory adjusted for cutting holes 90 mm long
in the No.1 set position and 120 mm long in the No.2 set position.
Push down the right-hand grip while raising the left-hand grip. Make sure that
the adjusting hex bolt slips into place securely.
Loosen the hex nut securing the adjusting hex bolt. Turn the adjusting hex bolt
until the cutter chain reaches the desired position, then tighten the hex nut.
WARNING:
•When using pressure to turn the adjusting hex bolt or hex nut, be careful
not to allow the adjusting hex bolt to slip off the set position.
To bring the cutter chain back to the perpendicular (original) position, pull the
lever (C) toward you while pressing down on the right-hand grip and slightly
raising the left-hand grip and move the cutter chain back to its original position.
When cutting a hole, first use the perpendicular position, then No.1 set posi-
tion and finally No.2 set position. Always safely hook the tool head back onto
the hook when changing the cutter chain position.
Cutter chain position Hole length to be cut
Original position 52.5 mm
No.1 set position 52.5 mm - 105 mm
No.2 set position 77.5 mm - 130 mm
1. Lever (C)
1
006009
1. Adjusting hex bolt for No. 1 set
position
2. Lever (C)
3. Adjusting hex bolt for No. 2 set
position
1
2
3
006010
1. Original position
2. No.1 set position
3. No.2 set position
4. Indication plate
5. Ruler
1
2
3
4
5
006011

9
When enlarging a hole both transversely and longitudinally, cut the holes in the
order indicated from No.(1) to (6) as shown. This makes for more easy and
efficient hole enlargement.
WARNING:
•Never attempt to enlarge a hole with the cutter chain still within the hole.
This will cause unstable and dangerous operation.
•Never angle the cutter chain when cutting the first hole, or a dangerous
kickback may result. Always have the cutter chain set to the
perpendicular position when cutting the first hole.
Lap joints up to 130 mm can be cut with this tool.
NOTE:
•Lap joints can be cut only on the front (side away from you) of the
workpiece.
MAINTENANCE CAUTION:
•Always be sure that the tool is switched off and unplugged before
attempting to perform inspection or maintenance.
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 brush holder caps. Take out the worn carbon
brushes, insert the new ones and secure the brush holder caps.
Lubrication
After use, remove dirt, chips and foreign matter adhering to the tool. Then oil
the moving parts (especially cutter chain) and the contact portions.
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.
1. Front vise
1
(6) (5) (4)
(3) (2) (1)
006012
006013
1. Limit mark
1
001145
1. Brush holder cap
2. Screwdriver
1
2
006014

10
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.
•Cutter chain
•Chain bar for 30 mm
•Sprocket 4 for 30 mm
•Oil supply (100 cc)

Memo
11

Makita Corporation Anjo, Aichi, Japan
883685A221