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H8203 Professional Drill Sharpening Machine
-21-
Review the troubleshooting and procedures in this section to fix or adjust your machine if a problem devel-
ops. If you need replacement parts or you are unsure of your repair skills, then feel free to call our Technical
Support at (570) 546-9663.
SECTION 6: SERVICE
Troubleshooting
Motor & Electrical
Symptom Possible Cause Possible Solution
Machine does not
start or a breaker
trips.
1. Plug/receptacle is at fault or wired incor
-
rectly.
2. Wiring is open/has high resistance.
3. Motor ON button or ON/OFF switch is at
fault.
4. Motor is at fault.
1. Test for good contacts; correct the wiring.
2. Check for broken wires or disconnected/corroded
connections, and repair/replace as necessary.
3. Replace faulty ON button or ON/OFF switch.
4. Test/repair/replace.
Machine stalls or is
overloaded.
1. Plug/receptacle is at fault.
2. Motor bearings are at fault.
3. Motor is at fault.
1. Test for good contacts; correct the wiring.
2. Test by rotating shaft; rotational grinding/loose shaft
requires bearing replacement.
3. Test/repair/replace.
Machine has vibra
-
tion or noisy opera
-
tion.
1. Motor or component is loose.
2. Motor shaft is bent.
1. Inspect/replace stripped or damaged bolts/nuts, and
re-tighten with thread locking fluid.
2. Test with dial indicator and replace motor.
Sharpening Operations
Symptom Possible Cause Possible Solution
Drill bit will not fit
into collet.
1. Wrong size collet. 1. Select a larger collet (Page 14).
Drill bit moves in
collet.
1. Collet lock ring not secured. 1. Secure lock ring (
Page 15).
Drill bit moves even
when collet ring is
secured.
1. Wrong collet size. 1. Select correct collet size for drill bit.
Drill bit not sharp
-
ened to desired
point angle.
1. Bit not calibrated properly in collet.
2. Point angle scale set to incorrect angle.
3. Bit sharpened unevenly or more pressure
applied to one side than the other in the
front grinding area.
1. Re-calibrate bit (
Page 14).
2. Adjust scale to correct angle (
Page 16).
3. Use even pressure to grind both sides of the bit.
Drill bit point angle
or web not adjust
-
ed.
1. Collet holder and bit not fully inserted into
front grinding or rear trimming area.
2. Bit not set correctly in collet holder.
3. Adjusting block set too high.
1. Insert collet holder with bit correctly (
Page 14) into
front grinding area and rear trimming area.
2. Reset bit in collet holder.
3. Lower adjusting block.