Makita JS1600 Instruction Manual page 6

1
2
1. Gauge for stainless:
1.2 mm (3/64")
2. Gauge for mild steel:
1.6 mm (1/16")
ASSEMBLY
3
5
4
1. Lower blade
2. Loosen
3. Upper blade
4. Upper blade securing bolt
5. Hex wrench
6
Permissible shearing thickness
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The groove on the yoke serves as a thickness gauge for shearing mild or
stainless steel plate. If the material fits within the groove, it is shearable.
The thickness of materials to be sheared depends upon the type (strength) of
the material. The maximum shearing thickness is indicated in the table below
in terms of various materials. Attempting to shear materials thicker than indi-
cated will result in tool breakdown and/or possible injury. Keep within the thick-
ness shown in the table.
Material
Mild steel (A)
Hard steel (B)
Stainless steel
Aluminum plate
CAUTION:
• Always be sure that the tool is switched off and unplugged before
carrying out any work on the tool.
Blade inspection
Before using the tool, check the blades for wear. Dull, worn blades will result in
poor shearing action, and the service life of the tool will be shortened.
Rotating or replacing blades
Both the upper and lower blades have four cutting edges on each side (the
front and back). When the cutting edge becomes dull, rotate both the upper
and the lower blades 90° to expose new cutting edges.
When all eight edges are dull on both the upper and lower blades, replace
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both blades with new ones. Each time blades are rotated or replaced, proceed
as follows.
1
Remove the blade securing bolts with the hex wrench provided and then rotate
2
or replace the blades.
Tensile Strength Max. cutting thickness
(N/mm2)
400 1.6 (16 ga)
600 1.2 (18 ga)
800 0.8 (22 ga)
200 2.5 (13 ga)
006425
(mm)