Darex V-390 - Manual (Page 15)

15
☞
TIP:
Periodically clean the
grindings from inside the
chuck to make sure it will
maintain accuracy.
☞
TIP:
To sharpen very small
drills, set the material
removal at the smallest
(#1) amount of material.
☞
TIP:
While aligning the drill,
make sure that the spring
steel pawls are fully inside
the flutes of the drill.
Q: The chisel edge on my drill bit is too long and flat!
A: During the alignment process the pawls were not gripping "ON"
the flutes of the drill bit. Re-align the drill bit making sure that the
pawls are centered in the flutes.
A: Too much heel relief. Realign drill bit toward the minus setting
and re-sharpen.
Q: After sharpening, the grind finish on my drill is rough!
A: Grind finish is initially rough when sharpened on a new wheel.
Drill performance will not be noticeably affected. However, the fin-
ish will improve as the crystal surfaces wear evenly.
A: Rotating the chuck too fast in the sharpening process can cre-
ate a rough finish.
Q: Why is my point split uneven?
Pictures on page 7, "Point Splitter Adjustments" show drill points
that are split, "Too little", "Too much", and a drill point that is
"Correctly split".
A: To correct an uneven point split, take more material off of the
under split flute. To do this, reinsert the chuck in the splitting tube
with the under split side down. Repeat procedure on page 7 - Step
B, to correct the split. A correct split point should look symmetri-
cal. The two parallel lines formed by the split should have a sepa-
ration of .002" to .005" on the chisel angle.
Q: Can I sharpen left-hand drill bits?
A: Not with this unit. However, Darex Industrial does offer other
precision drill bit sharpeners that will sharpen left-hand drill bits.
They can be reached at 1-800-547-0222 or online at
http://www.darex.com
Q: Motor stops running, won't restart!
The motor will shut off when the following occurs:
A: The wheel is jammed and the motor is stalled. Push the On/Off
switch to "OFF" and unplug the electrical cord. Remove the wheel
cover and check to see if the wheel rotates freely. Make sure that
all grindings are cleaned out and no obstructions are in the wheel
cavity area. Once this is done and the wheel turns freely, plug the
machine back in to the electrical receptacle and follow the restart-
ing procedures.
A: The machine is tipped at an angle or is turned over.
A: An extreme voltage change occurs to the motor.
A: Too heavy of use for an extended time, the motor overheats.
A: If the motor is short-circuited for any reason.
When the motor shuts off from any of the above reasons, reset the
on/off switch to “ON”. The motor should restart. If motor does
not start allow the unit to cool down for approximately 30 minutes.
Then push the “ON” switch again.
NOTICE: The V390 Drill Sharpener is equipped with multiple
safety features which turn the motor off when certain occurrences
happen to the machine. For example, turning the machine on its
side will cause the circuit breaker to trip. Machine must be placed
upright.
If the unit won't start by following the above procedures call Darex
Corporation at 1-800-547-0222 and ask for Technical Service.
Troubleshooting