Functional Description - Makita JS1600 Instruction Manual

FUNCTIONAL DESCRIPTION

CAUTION:
Always be sure that the tool is switched off and
•
unplugged before adjusting or checking function on
the tool.
Switch action
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CAUTION:
Before plugging in the tool, always check to see
•
that the switch lever (paddle switch) actuates
properly and returns to the ''OFF'' position when
released.
The switch lever does not actuate when the lock-off
•
lever is in the LOCK position. Do not try to actuate
the switch lever when the lock-off lever is in the
LOCK position.
When not operating the tool, keep the lock-off lever
•
in the LOCK position.
To prevent the switch from being accidentally actuated, a
lock-off lever is provided. To start the tool, turn the
lock-off lever to the FREE position and then squeeze the
switch lever. Release the switch lever to stop.
Permissible shearing thickness
1
2
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1. Lock-off lever in
the FREE
1
position
2. Switch lever
(Paddle switch)
1. Lock-off lever in
the LOCK
position
1
1. Gauge for
stainless: 1.2
mm (3/64")
2. Gauge for mild
steel: 1.6 mm
(1/16")
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 indicated will result in tool breakdown and/or
possible injury. Keep within the thickness shown in the
table.
Material
Mild steel (A)
Hard steel (B)
Stainless steel
Aluminum plate
006425
ASSEMBLY
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 both blades with new ones. Each
time blades are rotated or replaced, proceed as follows.
3
5
4
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Remove the blade securing bolts with the hex wrench
provided and then rotate or replace the blades.
Some tools have one or more thin washers between the
upper blade and the blade holder. Be sure to use the
same number of thin washers when reassembling.
4
Tensile Strength Max. cutting thickness
2
(N/mm ) (mm)
400 1.6 (16 ga)
600 1.2 (18 ga)
800 0.8 (22 ga)
200 2.5 (13 ga)
1. Lower blade
2. Loosen
1
3. Upper blade
2
4. Upper blade
securing bolt
5. Hex wrench