Functional Description - Makita 4190D Instruction Manual

10. Use extra caution when making a "pocket cut"
into existing walls or other blind areas. The pro-
truding wheel may cut gas or water pipes, electrical
wiring or objects that can cause kickback.
SAVE THESE INSTRUCTIONS.
WARNING:
DO NOT let comfort or familiarity with product
(gained from repeated use) replace strict adherence
to safety rules for the subject product. MISUSE or
failure to follow the safety rules stated in this instruc-
tion manual may cause serious personal injury.

FUNCTIONAL DESCRIPTION

CAUTION:
• Always be sure that the tool is switched off and the bat-
tery cartridge is removed before adjusting or checking
function on the tool.
Installing or removing battery cartridge (Fig. 1)
• 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 battery 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 pre-
vent 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.
Adjusting depth of cut (Fig. 2)
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. 3)
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. 4)
For straight cuts, align the "A" position on the front of the
base with your cutting line. For 45° bevel cuts, align the
"B" position with it.
NOTE:
• 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 see-
ing it because of the water tank, adjust the position of
the tank by tilting it backward slightly.
6
Switch action (Fig. 5)
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 bat-
tery cartridge is removed before carrying out any work
on the tool.
Installing or removing diamond wheel (Fig. 6)
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. (Fig. 7)
CAUTION:
• When installing the wheel, be sure to tighten the bolt
securely.
• Use only the Makita wrench to install or remove the
wheel.
Hex wrench storage (Fig. 8)
When not in use, store the hex wrench as shown in the
figure to keep it from being lost.
Installing water supply (Fig. 9)
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.
Attach the tank holder onto the motor housing. Tighten
the screw (B) securely. (Fig. 10)
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. 11)
CAUTION:
• If you find the polyvinyl tube is bent like a "V" or has
been strained excessively after installing the water sup-
ply, loosen the screw (B) and adjust the position of the
tank to alleviate the bent, pinched or strained condition.
Water supply (Fig. 12)
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.