For JR3030T
To install the blade, push the push button in the
direction of the arrow and insert the blade between
the blade clamp and the slider as far as it will go. Then
release the push button and make sure that the blade
cannot be extracted even though you try to pull it out.
(Fig. 3)
CAUTION:
If you release the push button without inserting the
blade deep enough, the blade may be ejected unex-
pectedly during operation. This can be extremely
dangerous.
To remove the blade, push the push button in the
direction of the arrow and pull out the blade. (Fig. 4)
For JR3030 (Fig. 5 & 6)
To install the blade, loosen the screw on the blade
clamp with the hex wrench 4 provided. Insert the
blade between the blade clamp and the slider so that
the pin on the slider fits into the hole in the blade
shank. If the pin cannot easily fit into the hole, remove
the hex wrench from the screw and then try again.
After the pin fits properly into the hole, tighten the
screw securely while making sure that the blade
cannot be extracted even though you try to pull it out.
CAUTION:
If you tighten the screw without the pin on the slider
fitting properly in the hole in the blade shank, the pin
or the blade shank will be damaged. This may cause
the blade to be ejected unexpectedly during opera-
tion. This can be extremely dangerous.
To remove the blade, follow the installation proce-
dures in reverse.
Adjusting the shoe (Fig. 7)
When the blade loses its cutting efficiency in one
place along its cutting edge, reposition the shoe to
utilize a sharp, unused portion of its cutting edge. This
will help to lengthen the life of the blade. To reposition
the shoe, loosen the lever and slide the shoe forward
or back to the desired position. Then tighten the lever
to firmly secure the shoe.
Switch action (Fig. 8)
CAUTION:
Before plugging in the tool, always check to see that
the switch trigger actuates properly and returns to the
‘‘OFF’’ position when released.
For tools with lock button
To start the tool, simply pull the trigger. Tool speed is
increased by increasing pressure on the trigger.
Release the trigger to stop. For continuous operation,
pull the trigger and then push in the lock button. To
stop the tool from the locked position, pull the trigger
fully, then release it.
For tools with lock-off button
To prevent the trigger from being accidentally pulled,
a lock-off button is provided. To start the tool, press in
the lock-off button and pull the trigger. Tool speed is
increased by increasing pressure on the trigger.
Release the trigger to stop.
Operation (Fig. 9)
Press the shoe firmly against the workpiece. Do not
allow the tool to bounce. Bring the blade into light
contact with the workpiece. First, make a pilot groove,
using a slower speed. Then use a faster speed to
continue cutting.
CAUTION:
• Always use a suitable coolant (cutting oil) when
cutting metal. Failure to do so will cause premature
blade wear.
• Always wear gloves to protect your hands from hot
flying chips when cutting metal.
• Always press the shoe firmly against the workpiece
during operation. If the shoe is held away from the
workpiece during operation, strong vibration and/or
twisting will be produced, causing the blade to snap
dangerously.
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. 10 & 11)
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,
maintenance or adjustment should be carried out by a
Makita Authorized Service Center.
6
JR3030 (E) (’101. 1. 9)
