Makita 4390D Instruction Manual page 5

Always switch off the tool before insertion or
•
removal of the battery cartridge.
To remove the battery cartridge, pull out the set
•
plate on the tool and grasp both sides of the
cartridge while withdrawing it from the tool.
To insert the battery cartridge, align the tongue on
•
the battery cartridge with the groove in the housing
and slip it into place. Snap the set plate back into
place. Be sure to close the set plate fully before
using the tool to prevent the battery cartridge from
accidentally falling out of the tool.
Do not use force when inserting the battery
•
cartridge. If the cartridge does not slide in easily, it
is not being inserted correctly.
Switch action
002490
CAUTION:
Before inserting the battery cartridge into the tool,
•
always check to see that the switch trigger
actuates properly and returns to the "OFF" position
when released.
To prevent the switch trigger from being accidentally
pulled, a lock-off lever is provided.
To start the tool, slide the lock-off lever in the direction of
the arrow and pull the switch trigger. Release the switch
trigger to stop.
ASSEMBLY
CAUTION:
Always be sure that the tool is switched off and the
•
battery cartridge is removed before carrying out
any work on the tool.
Installing or removing the saw blade
1
2
3
002498
1. Lock-off lever
2. Switch trigger
1
2
1. Roller
2. Blade clamp
3. Blade installing
position
CAUTION:
Always clean out all chips or foreign matter
•
adhering to the blade, blade clamp and/or slider.
Failure to do so may cause insufficient tightening
of the blade, resulting in a serious injury.
To install the blade, loosen the bolt on the blade clamp
with the hex wrench. Keep the back edge of the blade
against the roller and insert the blade between the blade
clamp and the slider as far as it will go. Make sure that
you are inserting the blade into the proper position.
Fit the pin on the slider into the hole in the blade shank.
2
002499
NOTE:
The hole in the blade shank will be aligned with the
•
pin on the slider when the blade shank hits against
the spring pin on the slider.
After the pin fits properly into the hole, tighten the bolt
clockwise securely while making sure that the blade
cannot be extracted even though you try to pull it out.
1
2
002500
CAUTION:
If you tighten the bolt 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 extracted unexpectedly
during operation.
To remove the blade, follow the installation procedure in
reverse.
5
1. Blade clamp
1
2. Slider
3. Spring pin
3
4. Pin
5. Blade shank
4
6. Hole
5
6
1. Slider
2. Hex wrench
3. Roller
3
4. Blade
4
5. Blade clamp
6. Shoe
5
6