Maintenance - Makita JS1600 Instruction Manual

Switch action
For tools with pivot type lock-off lever
(Fig. 7 & 8)
CAUTION:
• Before plugging in the tool, always check to see that
the 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 posi-
tion.
• 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.
For tools with slide type lock-off lever (Fig. 9)
CAUTION:
Before plugging in the tool, always check to see that the
paddle switch actuates properly and returns to the "OFF"
position when released.
To prevent the switch from being accidentally actuated, a
lock-off lever is provided. To start the tool, slide the lock-
off lever in the direction of the arrow and squeeze the
switch lever. Release the switch lever to stop.
Holding material (Fig. 11)
The materials for cutting should be fastened to the work bench by means of workholders.
Shearing method (Fig. 12)
Keep the shear moving parallel with the material.
Maximum cutting width
Stay within the specified maximum cutting width (A): Case of length 1,800 mm.
Cutting line
Minimum cutting radius
Minimum cutting radius is 30 mm when cutting 1.0 mm mild steel.

MAINTENANCE

CAUTION:
Always be sure that the tool is switched off and
unplugged before carrying out any work on the tool.
Replacement of carbon brushes
(Fig. 13 & 14)
Replace carbon brushes when they are worn down to the
limit mark. Both identical carbon brushes should be
replaced at the same time.
To maintain product safety and reliability, repairs, mainte-
nance or adjustment should be carried out by a Makita
Authorized Service Center.
Permissible shearing thickness (Fig. 10)
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 below.
Stainless steel
Aluminum plate
Mild steel
(thickness)
Max. cutting
width (A)
1,800 mm
Stainless
(thickness)
Max. cutting
width (A)
Tensile
Material strength
(kg/mm
Mild steel 35
Hard steel 50
50
25
1.6 mm
100 mm
1.2 mm
80 mm
Max. cutting
thickness (mm)
2
)
1.6
1.2
1.2
2.0
Under 1.2 mm
No limit
Under 1.0 mm
No limit
5