Darex V-390 - Manual (Page 16)

16
DAREX V390 MAINTENANCE
Cleaning the DAREX V390
Unplug the Drill Bit Sharpener. Using a dry paintbrush or a cloth,
clean the inside and outside of the Alignment, Sharpening and
Splitting ports to remove any grindings that may have accumu-
lated. (See Picture #25) The attachment of a vacuum with a stan-
dard vacuum hose works well to keep the grit area clean. (See
“Vacuum Tube” below)
Removing the wheel cover
Unplug the Drill Bit Sharpener. Using a 3mm hex wrench, remove
the three hex head screws holding the wheel cover on. (See Pic-
ture #26) Lift the wheel cover off and with a dry brush remove
any grinding dust. (See Picture #27)
Determining if a wheel change is required
1. Sharpened drill bits will burn or turn blue no matter how fast or
slow you rotate the chuck.
2. Upon inspecting the wheel, it appears smooth as if there is no
abrasive. (See “Cleaning the electroplated CBN or diamond
wheel” )
3. When sharpening a drill bit, if it takes an extreme number of
rotations to sharpen the tool, then the wheel will need to be re-
placed. Contact the company or distributor where the sharpener
was purchased for replacement wheels.
Removing the wheel
MAKE SURE THE UNIT IS UNPLUGGED! Once wheel cover is re-
moved, insert a Phillips head screwdriver into the wheel retainer
bolt on the top of the wheel and turn it counterclockwise to loosen.
(See Picture #28) Using a hex wrench remove the bolt and wheel
retainer. Lift the wheel off of the motor hub. (See Picture #29)
Remove dust particles from the wheel hub and grinding wheel area
with a small dry brush. Dispose of drill grinding dust in a safe and
environmentally approved manner. Prior to re-installing the wheel
make sure to clean all grindings off of hub and wheel.
Replacing the wheel
To re-install wheel, reverse steps taken to remove wheel.
Cleaning the chuck
Using pressurized air, blow grindings out of the chuck from the
knob end. For further cleaning, disassemble the chuck by merely
unscrewing the closing knob on the chuck and removing the chuck
body. Clean the inside of the chuck with a dry paintbrush. Do not
remove the springs and jaws from the holder! Once the inside of
the chuck has been cleaned, apply a drop or so of light lube on the
threads. Slide the chuck body onto the jaws, rotate the closing
knob clockwise to reassemble the chuck. (See Picture #30)
Pic 25
Pic 26
Pic 27
Pic 28
Pic 29
Pic 30