Functional Description - Makita JS3200 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
1
CAUTION:
• Before plugging in the tool, always check to see
that the switch trigger actuates properly and returns
to the "OFF" position when released.
• Switch can be locked in "ON" position for ease of
operator comfort during extended use. Apply cau-
tion when locking tool in "ON" position and maintain
firm grasp on tool.
To start the tool, simply pull the switch trigger. Release
the switch trigger to stop.
For continuous operation, pull the switch trigger and then
push in the lock button.
To stop the tool from the locked position, pull the switch
trigger fully, then release it.
Permissible shearing thickness
1
2
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 shear-
ing 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 possi-
ble injury. Keep within the thickness shown in the table.
004670
1. Switch trigger
2
2. Lock button
004675
1. Gauge for stain-
less: 2.5 mm
(3/32")
2. Gauge for mild
steel: 3.2 mm
(1/8")
Max. cutting capacities
Steel up to 400 N/mm
Steel up to 600 N/mm
Steel up to 800 N/mm
Aluminum up to 200 N/mm
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.
The service life of the blades varies in terms of the mate-
rials to be cut and the fixed blade clearance. Roughly
speaking, a blade can cut about 500 m (1500 ft.) of
3.2 mm (10 ga.) mild steel with one cutting edge (total
2,000 m (6560 ft.) with four cutting edges).
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.
2
3
4
Remove the blade securing bolts with the hex wrench
provided and then rotate or replace the blades.
Install the upper blade and tighten the upper blade secur-
ing bolt with the hex wrench. Press up on the upper blade
while tightening it.
1
2
4
mm
2 3.2
2
2.5
2
1.5
2 4.0
004679
1. Hex wrench
1
2. Lower blade
3. Upper blade
securing bolt
4. Upper blade
004682
1. Tighten
2. Upper blade
securing bolt
3. Upper blade
3
006426
ga
10
13
17
9