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Switch action (Fig. 14)
CAUTION:
Before inserting the battery cartridge into the
machine, 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 machine, slide the lock-off lever in the
direction of the arrow and pull the trigger. Release the
trigger to stop.
Water supply (Fig. 15)
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 machine get wet.
Operation (Fig. 16)
Hold the machine firmly. Set the base plate on the
workpiece to be cut without the wheel making any
contact. Then turn the machine on and wait until the
wheel attains full speed. Feed water to the wheel by
adjusting the water cock to obtain a gentle flow of
water. Move the machine forward over the workpiece
surface, keeping it flat and advancing smoothly until
the cutting is completed. Keep your cutting line
straight and your speed of advance uniform.
For fine, clean cuts, cut slowly. (When cutting glass
plate 5 mm thick, cut at about 250 mm/min. When
cutting tile 10 mm thick, cut at about 300 mm/min.)
Also slow down as you complete a cut to avoid
breaking or cracking the workpiece being cut.
CAUTION:
•
Be sure to hold the workpiece firmly down on a
stable bench or table during operation.
•
Do not twist or force the machine in the cut, or the
motor may be overloaded or the workpiece may
break.
•
Do notuse themachine with thewheel inan upward
or sideways position.
•
When cutting glass plate, it is recommended to
attach a rubber plate (optional accessory) on the
base of the machine to prevent the workpiece
surface from being scratched.
•
The wheel for Model 4190D/DB is a wet-type wheel
for glass and tile applications. Be sure to feed water
to the wheel during operation.
•
If the cutting action of the wheel begins to diminish,
dress the cutting edge of the wheel using an old
discarded coarse grit bench grinder wheel or con-
crete block. Dress by pressing lightly on the outer
edge of the wheel.
Cutting performance
The following reference table indicates the approxi-
mate cutting capacity from a single battery charge.
Work-
piece
Thickness
Cutting length (90°)
4190D 4190DB
Glass
3mm 5m 8m
5mm 2m 3m
Ceramic
tile
5mm 4m 6m
10 mm 3.5 m 5.5 m
CAUTION:
If the machine is operated continuously until the
battery cartridge has discharged, allow the machine
to rest for 15 minutes before proceeding with a fresh
battery.
MAINTENANCE
CAUTION:
Always be sure that the machine is switched off and
the battery cartridge is removed before carrying out
any work on the machine.
After use
Brush off accumulation of dust on the base.
To maintain product safety and reliability, repairs,
maintenance oradjustment should becarried out bya
Makita Authorized Service Center.
4190D (E) (’100. 3. 17)
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