INSTRUCTION MANUAL
Cement Shear
JS8000
007430
DOUBLE INSULATION
WARNING:
For your personal safety, READ and UNDERSTAND before using.
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.
1
Electrical Safety
Use of these devices can reduce dust-related
hazards.
4.
Power tool plugs must match the outlet. Never
modify the plug in any way. Do not use any
adapter plugs with earthed (grounded) power
tools. Unmodified plugs and matching outlets will
reduce risk of electric shock.
Avoid body contact with earthed or grounded
surfaces such as pipes, radiators, ranges and
refrigerators. There is an increased risk of
electric shock if your body is earthed or grounded.
Do not expose power tools to rain or wet
Power tool use and care
16. Do not force the power tool. Use the correct
power tool for your application. The correct
power tool will do the job better and safer at the
rate for which it was designed.
17. Do not use the power tool if the switch does
not turn it on and off. Any power tool that cannot
be controlled with the switch is dangerous and
must be repaired.
5.
6.
7.
conditions. Water entering
increase the risk of electric shock.
a
power tool will
18. Disconnect the plug from the power source
and/or the battery pack from the power tool
before making any adjustments, changing
accessories, or storing power tools. Such
preventive safety measures reduce the risk of
starting the power tool accidentally.
Do not abuse the cord. Never use the cord for
carrying, pulling or unplugging the power tool.
Keep cord away from heat, oil, sharp edges or
moving parts. Damaged or entangled cords
increase the risk of electric shock.
19. Store idle power tools out of the reach of
children and do not allow persons unfamiliar
with the power tool or these instructions to
operate the power tool. Power tools are
dangerous in the hands of untrained users.
20. Maintain power tools. Check for misalignment
or binding of moving parts, breakage of parts
and any other condition that may affect the
power tools operation. If damaged, have the
power tool repaired before use. Many accidents
are caused by poorly maintained power tools.
21. Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting edges
are less likely to bind and are easier to control.
22. Use the power tool, accessories and tool bits
etc. in accordance with these instructions and
in the manner intended for the particular type
of power tool, taking into account the working
conditions and the work to be performed. Use
of the power tool for operations different from
8.
When operating a power tool outdoors, use an
extension cord suitable for outdoor use. Use of
a cord suitable for outdoor use reduces 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 a power tool while you are 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. Use safety equipment. Always wear eye
protection. Safety equipment such as dust mask,
non-skid safety shoes, hard hat, or hearing
protection used for appropriate conditions will
reduce personal injuries.
11. Avoid accidental starting. Ensure the switch is
in the off-position before plugging in. Carrying
power tools with your finger on the switch or
plugging in power tools that have the switch on
invites accidents.
those intended could result in
situation.
a
hazardous
SERVICE
12. Remove any adjusting key or wrench before
turning the power tool on. A wrench or a key left
attached to a rotating part of the power tool may
result in personal injury.
23. Have your power tool serviced by a qualified
repair person using only identical replacement
parts. This will ensure that the safety of the power
tool is maintained.
13. Do not overreach. Keep proper footing and
balance at all times. This enables better control
of the power tool in unexpected situations.
14. Dress properly. Do not wear loose clothing or
jewellery. Keep your hair, clothing, and gloves
away from moving parts. Loose clothes,
jewellery or long hair can be caught in moving
parts.
24. Follow instruction for lubricating and
changing accessories.
25. Keep handles dry, clean and free from oil and
grease.
GEB032-1
SPECIFIC SAFETY RULES
DO NOT let comfort or familiarity with product
(gained from repeated use) replace strict adherence
to cement shear safety rules. If you use this power
tool unsafely or incorrectly, you can suffer serious
15. If devices are provided for the connection of
dust extraction and collection facilities,
ensure these are connected and properly used.
3
personal injury.
1.
2.
3.
4.
Hold the tool firmly.
Secure the workpiece firmly.
CAUTION:
•
Before plugging in the tool, always check to see
that the switch trigger actuates properly and
returns to the "OFF" position when released.
Keep hands away from moving parts.
Edges and chips of the workpiece are sharp.
Wear gloves. It is also recommended that you
put on thickly bottomed shoes to prevent
injury.
Do not put the tool on the chips of the
workpiece. Otherwise it can cause damage
and trouble on the tool.
Do not leave the tool running. Operate the tool
only when hand-held.
Always be sure you have a firm footing.
Be sure no one is below when using the tool in
high locations.
To start the tool, simply pull the switch trigger. Tool
speed is increased by increasing pressure on the switch
trigger. Release the switch trigger to stop.
For continuous operation, pull the switch trigger and
then push in the lock button.
5.
To stop the tool from the locked position, pull the switch
trigger fully, then release it.
6.
7.
Hook
The hook is convenient for temporary hanging the tool.
When using the hook, pull it out in ''A'' direction and then
push it in ''B'' direction to secure in place.
8.
9.
Do not touch the blade or the workpiece
immediately after operation; they may be
extremely hot and could burn your skin.
Avoid cutting electrical wires. It can cause
serious accident by electric shock.
1. Hook
A
1
10. Some material contains chemicals which may
be toxic. Take caution to prevent dust
inhalation and skin contact. Follow material
supplier safety data.
11. Always use the correct dust mask/respirator
for the material and application you are
working with.
004676
SAVE THESE INSTRUCTIONS.
B
WARNING:
MISUSE or failure to follow the safety rules stated in
this instruction manual may cause serious personal
injury.
004677
FUNCTIONAL DESCRIPTION
When not using the hook, return it back to its initial
position by following the above procedures in reverse.
CAUTION:
•
Always be sure that the tool is switched off and
unplugged before adjusting or checking function on
the tool.
ASSEMBLY
CAUTION:
Switch action
•
Always be sure that the tool is switched off and
unplugged before carrying out any work on the
tool.
1. Switch trigger
2. Lock button
Replacement of blades
CAUTION:
1
2
•
Never remove the blades with bare hands. Wear
gloves. Otherwise it can cause injury.
004668
4
Removing cutting head
shown in the figure.
The following describes time and procedure to change
blades.
A) When the two side blades have rounded about half
their width, they can be repositioned left-to-right for new
cutting edges.
1. Hex wrench
2. Loosen
3. Screws
4
1
4. Cutting head
B) When both edges of each side blade have rounded
about half their width, reposition them end-to-end for two
new cutting edges.
2
3
C) When all edges have worn down, obtain
replacements from Makita authorized or factory service
center.
D) When side blades are worn out, the center blade
should also be replaced.
007431
Use the hex wrench to loosen the three screws which
secure the cutting head. Pull the cutting head straight
out to remove it with turning it left and right alternately.
Removing shear blades
1. Reposition
end-to-end
2
1. Side blade
2. Center blade
3. Screws
4. Side blade
2. Reposition
left-to-right
1
5
1
5. Cutting head
2
3
007435
4
007432
Installing cutting head
1. Hex wrench
2. Tighten
3. Screws
Remove the two screws (middle and front) which hold
the cutting head. When removing the middle screw, be
careful not to lose the spacer. Then the blades can be
removed easily. When removing the blades, hold the
blades, the spacer and the pivot sleeve so that they do
not fall from the cutting head.
1
2
3
Installing shear blades
1. Side blade
1
007436
2. Center blade
3. Side blade
4. Pivot sleeve
5. Spacer
CAUTION:
•
Secure the cutting head firmly. Otherwise it can
rotate during operation and can cause serious
injury.
4
3
2
Insert the cutting head into the tool with turning it left and
right alternately. Then tighten the three screws with the
hex wrench.
5
007433
Install the spacer and the pivot sleeve and tighten the
three screws after inserting the center blade, side blades
into the cutting head. In this process, the screw heads
should be protruding 2 - 3 mm from the cutting head
surface.
OPERATION
CAUTION:
•
This tool is intended for cutting fiber cement
material only, with a thickness of 8 mm or less. Do
not cut other materials or stack-cut. Doing so will
damage the tool and void warranty.
If you will tighten the screws excessively, the cutting
head cannot be installed to the tool.
NOTE:
•
Wear gloves. Otherwise it can cause injury.
•
Side blade edge can be used in four ways by
repositioning them left-to-right and end-to-end as
5
Secure the workpiece firmly. Move the tool forward
keeping the side blades flush with the workpiece
surface.
•
Hex wrench
007434
MAINTENANCE
CAUTION:
•
Always be sure that the tool is switched off and
unplugged before attempting to perform inspection
or maintenance.
Lubrication
1. Side blade
2. Center blade
3. Side blade
4. Pivot sleeve
5. Spacer
1
4
3
2
5
007433
Before operation, lubricate the contact point of the
center blade and the side blades. And, also lubricate
around the pivot sleeve and the spacer.
To maintain product SAFETY and RELIABILITY, repairs,
carbon brush inspection and replacement, any other
maintenance or adjustment should be performed by
Makita Authorized 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.
•
Center blade
Side blades
•
6
7
Makita Corporation Anjo, Aichi, Japan
884685-224
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