Makita 4190D Instruction Manual page 7

ADDITIONAL SAFETY RULES
FOR TOOL
1. Be aware that this is always in an operating con-
dition, because it does not have to be plugged
into an electrical outlet.
2. Check the wheel carefully for cracks or damage
before operation. Replace cracked or damaged
wheel immediately.
3. Use only flanges specified for this tool.
4. Be careful not to damage the spindle, flanges
(especially the installing surface) or bolt. Dam-
age to these parts could result in wheel break-
age.
5. Hold the tool firmly.
6. Keep hands away from rotating parts.
7. Make sure the wheel is not contacting the work-
piece before the switch is turned on.
8. Wait until the wheel attains full speed before cut-
ting.
9. Stop operation immediately if you notice any-
thing abnormal.
10. Do not attempt to lock the trigger in the "ON"
position.
11. Never attempt to cut with the tool held upside
down in a vise. This can lead to serious acci-
dents, because it is extremely dangerous. (Fig. 1)
12. Before setting the tool down after completing a
cut, be sure that the wheel has come to a com-
plete stop.
SAVE THESE INSTRUCTIONS.
OPERATING INSTRUCTIONS
Installing or removing battery cartridge (Fig. 2)
• 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.
• Do not use force when inserting the battery cartridge. If
the cartridge does not slide in easily, it is not being
inserted correctly.
Installing water supply
Attach the tank holder on the tank. The tank holder
should be attached around the portion shown with the
dotted line. Tighten the screw (A) to the extent that the
tank can still turn within the tank holder. (Fig.3)
Attach the tank holder onto the motor housing. Tighten
the screw (B) securely. (Fig. 4)
Connect the cap on the end of the polyvinyl tube to the
mouth of the tank. Turn the tank clockwise when making
the connection. Then tighten the screw (A) securely to
secure the tank. (Fig.5)
CAUTION:
If you find the polyvinyl tube is bent like a "V" or has been
strained excessively after installing the water supply,
loosen the screw (B) and adjust the position of the tank to
alleviate the bent, pinched or strained condition.
Installing or removing diamond wheel (Fig. 6 & 7)
Important:
Always be sure that the tool is switched off and the bat-
tery cartridge is removed before installing or removing
the wheel.
To install the wheel, first loosen the bolt with the hex
wrench and remove the bolt and the flange. Then mount
the wheel, the flange and the bolt. The wheel should be
mounted with the Makita name on the flange side.
Press the blade stopper pin and insert it through the hole
in the wheel so that the wheel cannot revolve. Use the
hex wrench to tighten the bolt securely.
To remove the wheel, follow the installation procedure in
reverse.
CAUTION:
• When installing the wheel, be sure to tighten the bolt
securely.
• Use only the Makita hex wrench to install or remove the
wheel.
Hex wrench storage (Fig. 8)
When not in use, the hex wrench can be conveniently
stored.
Adjusting depth of cut (Fig. 9)
Loosen the bolt (A) on the depth guide with the hex
wrench and move the base up or down. At the desired
depth of cut, secure the base by tightening the bolt (A).
Bevel cutting (Fig. 10)
Loosen the bolt (A) on the depth guide and the bolt (B)
on the bevel scale plate with the hex wrench. Set for the
desired angle (0 – 45°) by tilting accordingly, then tighten
the bolts (A) and (B) securely.
CAUTION:
After adjusting depth of cut and bevel cutting angle, be
sure to tighten the bolts (A) and (B) securely.
Sighting (Fig. 11)
For straight cuts, align the edge of the base with your cut-
ting line on the workpiece. For 45° bevel cuts, align the
notch in the front of the base with it.
CAUTION:
When making bevel cuts, view the cutting line on the
workpiece through the window in the blade case in order
to cut more accurately. If you have difficulty seeing it
because of the water tank, adjust the position of the tank
by tilting it backward slightly.
Switch action (Fig. 12)
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 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 trigger.
Release the trigger to stop.
Water supply (Fig. 13)
Remove the cap on the tank and fill through the hole.
Recap the tank. Be sure that the water cock is turned off
when filling the tank with water.
CAUTION:
When filling the tank with water, be careful not to let the
tool get wet.
7