Functional Description; Operation - Makita JS3201 Bedienungsanleitung

FUNCTIONAL DESCRIPTION

CAUTION:
Always be sure that the tool is switched off and
•
unplugged before adjusting or checking function
on the tool.
Switch action
Fig.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
caution 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
Fig.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
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.
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
006426
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
materials to be cut and the fixed blade clearance.
Roughly speaking, a blade can cut about 500 m of 3.2
mm mild steel with one cutting edge (total 2,000 m with
four cutting edges).
mm
2
3.2
2 2.5
2
1.5
2
4.0
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.
Fig.3
Remove the blade securing bolts with the hex wrench
provided and then rotate or replace the blades.
Fig.4
Install the upper blade and tighten the upper blade
securing bolt with the hex wrench. Press up on the
upper blade while tightening it.
Fig.5
After securing the upper blade, be sure that there is no
gap left between the upper blade and the beveled
surface of the blade holder.
Fig.6
Then install the lower blade like the upper blade while
adjusting the clearance between the upper blade and
lower blades. When performing this adjustment, the
upper blade should be in the lowered position.
Fig.7
First, semi- tighten the lower blade securing bolt, then
insert the thickness gauge for the desired clearance.
The cutting thickness is indicated on the thickness
gauge so the combinations shown in the table below
should be used. Work the lower blade positioning bolt
on the yoke until the clearance is such that the
thickness gauge moves only with some difficulty. Then
firmly tighten the lower blade securing bolt. Finally,
tighten the hex nut to secure the lower blade positioning
bolt.
ga
Thickness gauge combinations
10
13
Material thickness
17
Thickness gauge
9
combinations
006427

OPERATION

CAUTION:
When cutting, always place the shear on the
•
workpiece so that the material cut away is
positioned on the right side to the operator.
Hold the tool firmly with one hand on the main
•
handle when performing the tool.
Holding material
Fig.8
The materials for cutting should be fastened to the
workbench by means of workholders.
5
2.3 mm (14 ga.) 2.5 mm (13 ga.) 3.2 mm (10 ga.)
1.0 +1.5 1.0 +1.5 1.5 + 2.0