Makita JS1670 User manual

Straight Shear
Mild steel
MODEL JS1670
Hard steel Stainless Aluminum Min cutting radius
INSTRUCTION MANUAL
DOUBLE
INSULATION
SPEC1 F I CAT IO N S
1.0mm 0.7 mm 0.7 mm 1.5 mm I 30mm 306 mm 1.3 kg
(3164") 1 (1132") I (1132") I 11/16") (l-l/8'')
I 4'500 I (12") I (2.9 Ibs)
* Manufacturer reserves the right to change specifications without notice.
Note: Specifications may differ from country to country.

IMPORTANT
SAFETY INSTRUCTIONS
(For All Tools)
WARNING:
WHEN USING ELECTRICTOOLS, BASIC SAFETY
PRECAUTIONSSHOULD ALWAYS BE FOLLOWEDTO REDUCE
THE RISK OF FIRE, ELECTRIC SHOCK, AND PERSONAL
INJURY, INCLUDING THE FOLLOWING:
READ ALL INSTRUCTIONS.
1.
2.
3.
4.
5.
6.
7.
8.
9.
IO.
11.
12.
13.
2
KEEP WORK AREA CLEAN. Cluttered areas and benches invite injuries.
CONSIDER WORK AREA ENVIRONMENT. Don't use power tools in damp
or wet locations. Keep work area well
lit. Don't expose power tools torain.
Don't use tool in presence of flammable liquids or gases.
KEEP CHILDREN AWAY. All visitors should be kept away from work area.
Don't let visitors contact tool or extension cord.
STORE IDLETOOLS. When not
in use, tools should bestored in dry, andhigh
or locked-up place
- out of reach of children.
DON'T FORCETOOL.
It will do thejob better and safer at theratefor which
it was intended.
USE RIGHT TOOL. Don't force small tool or attachment to do the job of a
heavy-duty tool. Don't usetoolfor purpose notintended; for example, don't
use circular saw for cutting tree limbs or logs.
DRESSPROPERLY. Don't wear looseclothing or jewelry. They can becaught
in moving parts. Rubber gloves and non-skid footwear are recommended
when working outdoors. Wear protective hair covering tocontain long hair.
USE SAFETY GLASSES. Also use face or dust mask if cuttingoperation is
dusty.
DON'T ABUSE CORD. Nevercarry tool by cord or yank
it todisconnect from
receptacle. Keep cord from heat, oil, and sharp edges.
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.
DON'T OVERREACH. Keep proper footing and balance at all times.
MAINTAIN TOOLS WITH CARE. Keep tools sharp and clean for better and
safer performance. Follow instructions for lubricating and changing acces-
sories. Inspect toolcords periodicallyand if damaged, haverepairedby autho-
rized service facility. Inspect extension cords periodically and replace
if
damaged. Keep handles dry, clean, and free from oil and grease.
DISCONNECTTOOLS. When not
in use, beforeservicing, and when chang-
ing accessories, such as blades, bits, cutters.

14. REMOVE ADJUSTING KEYS AND WRENCHES. Form habit of checking to
see that keysand adjusting wrenches are removedfrom tool before turning
it on.
15.
AVOID UNINTENTIONALSTARTING. Don't carry toolwithfinger 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 linevoltage resultingin loss of power andoverheating. Table 1 showsthe
correct size touse depending oncord 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
18 16 16
18 16
14
16 16 14
I 0 - 25 I 26 - 50 1 51 - 100 1 101 - 150
14
12
12
Ampere Rating
More Not More
Than Than
0- 6
6 - 10
10 - 12
12 ~ 16 14 12 Not Recommended
17. OUTDOOR USE EXTENSION CORDS. When tool is used outdoors, use only
extension cords intended for use outdoors and
so marked.
18. STAY ALERT. Watch what you are doing, usecommon sense. Don't operate
tool when you are tired.
19. 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 itsintended function. Check for alignment of
movingparts, bindingof movingparts, breakageof parts, mounting, andany
other conditions that may affect its operation. A guard or other part that
isdamaged should be properly repaired or replaced by an authorized serv-
ice center unless otherwise indicatedelsewhere
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. When servicing, useonly identical replacementparts.
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 aqualifiedelectriciantoinstall
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 tothe 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. Secure the workpiece firmly.
2. Edges and chips of the workpiece are sharp. So, be careful.
SAVE THESE INSTRUCTIONS.
4

Lubrication
Before operation, lubricate the contact
point of the center blade and the pin. To
keep good cutting performance, also use
a
cutting lubricant from time to time during
operation.
Switch action
To start the tool, move the slide switch
forward, and the slide switch will lock in
the
"ON" position. To stop, lightly depress
the
rear of the slide switch, and it will re-
turn to the "OFF" position.
CAUTION
:
Before plugging in the tool, always check
to
see that the slide switch actuates pro-
perly and returns
to the "OFF" position
when depressed.
Operation
Turn the tool on and set the front ends
of the side blades on the workpiece. Now
simply move the tool forward, keeping
the side blades flush with the workpiece
surface. When cutting curves, advance the
tool very slowly.
CAUTION :
When cutting a small portion of the work-
piece,
you may have difficulty complet-
ing the end of the cut. In that
case, try to
cut
it again, pulling the workpiece back
slightly.
1 Slide switch
5

MAINTENANCE
CAUTION :
Always be sure that the tool is switched off and unpluggedbefore attemptingto perform
inspection or maintenance.
Workpiece
Replacingcarbon brushes
Remove and check the carbon brushes
regularly. Replacewhen 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.
Cuttingthickness Cutting length
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.
Mild steel
Limit mark
1.0 mm 13/64',) 120 m (394 ft.)
f Brush holder cap
Hard steel
Replacingblades
The service life of the blades varies in terms of the workpiece to be cut. The following
reference table indicates the approximate service life of the blades. When the blades
becomedull, ask Makita Authorized or Factory Service Centers to replace the yades.
0.7 mm (1 /32")
100 m (328 ft.)
Stainless
0.7 mm (1/32")
50 m (164 ft.)
Aluminum I 1.5" (1/16") I 300 m (984ft.)
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.
6

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. The
accessories or attachments should be used only in the proper and intended manner.
0 Hex wrench 3
Part No. 783201-2
0 Wrench holder
Part No. 410048-8

Apr -24-537 EN
STRAIGHT SHEAR
Model JS1670
Note: The switch, noise suppressor and other part configuratlons
may differ from country to country.
8

MODEL JS1670
':,'OM $2D DESCRIPTION
MACHINE
~
1 4 Pan Head Screw M4x35 (With Washer1
2 1 Block
3 1 Hex Lock NutM4-7
4 1 Set Screw M5x12
5 1 Pan 7
6 1 Stop Ring E-6
7 1 Rubber Pin 4
8 1 Ball Bearing 627LLB
9 1 Flat Washer 7
10 1 Rod
11 1 Ball Bearing 6000CLB
12 1
Crank Shaft
13 I Bush
14 1 Ball Bearing 6000L8
15 1
Helical Gear 44
16
1 Retaining Ring 5-10
17 1
Ball Bearing 608LB
18 1 Fan 52
19 1 ARMATURE ASSEMBLY
(With Item 17 18 E 201
20 1 Ball Bearing 627LLB
21 1 FIELD ASSEMBLY
22 1 Woodruff Key 3
23 1
Pin 5
24 1 Link
25 1 Pl" 5
26 1 Dust Cover
27 1 Crank Housing
28 1 Slip Place R
29 1 Side Blade
July-17-'89 US
""0" $2D DESCRIPTION
MACHlNE
30 1
31 1
32 1
33 1
34
1
35 1
36 1
37 1
38 1
39 1
40 1
41 1
42 1
43
I
44 1
45 1
46 1
47 1
48 1
49 1
50 2
51 1
52 1
54 1
55 2
56 2
57 1
58 5
59 1
SllP Plate L
Space,
Side Blade
Hex Socket Head Bolt M5x10
Hex Socket Head Bolt M4x25
Hex Socket Head Bolt M5x10
Stop Ring E-4
Teflon Washer 7
Thin Washer 7
Center Blade
Thin
Washer 7
Teflon Washer 7
Flat Washer 5
Flat Washer 5
Switch Rod
Compression
Spring 6
Housing Set (With Item 591
Cord
Cord Guard
Sfrain Relief
Pan Head Screw M4x18 1Wtth Washer1
Rubber
Pin 4
Switch
Rubber Pin 4
Carbon Brush
Brush Holder
Cap
Name Plate
Pan Head Screw M4x30 (With Washer1
Housing Set (With Item 461
9

MAKlTA LIMED ONE YEARWARRANTY
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 penod
of ONE YEAR from the date of
original purchase. Should any trouble develop during this one-year penod,
return the COMPLETE
tool, freight prepaid,
lo one of Makita’s Factory or Authorized Service Centers. If inspectian shows
the trouble is caused by defective workmanship
or material, Makita will repair (or at our option.
replace) without charge.
ThisWarranty does not apply where:
repairs have been made or atrempted by others:
repmrs 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 CON-
SEQUENTIAL DAMAGES FROM THE SALE OR USE OFTHE PRODUCT. THIS DISCLAIMER
APPLIES BOTH DURING AND AFTER THE TERM OFTHISWARRANTY,
MAKITA DISCLAIMS LIABILITY FOR ANY IMPLIED WARRANTIES, INCLUDING IMPLIED
WARRANTIES OF “MERCHANTABILITY” AND “FITNESS FOR A SPECIFIC PURWSE,”
AFTER THE ONE-YEAR TERM OFTHIS WARRANTY.
This Warranty gives you specific legal rights, and YOU may also have other rights which vary from
state lo state. Some states do not allow the exclusion or limitation of incidental or consequential
damapes.
so the above limitation or exclusion mav not ~DDIV to YOU. Some states do not allow
limitaiion on how long an implied warranty lasts, so the abb;etimiiation may not apply toyou.
Makita Corporation
3-11 -8, Sumiyoshi-cho,
Anjo, Aichi
446 Japan
883601A069 PRINTED IN JAPAN
1995 - 3 - N