LEMAN PRC016, Руководство по эксплуатации, Страница: 32 / 38

Operating Manual & Parts List
TROUBLESHOOTING
SYMPTOM
Spindle does not turn
Noisy spindle
Noisy operation
Bit burns or smokes
Excessive drill runout or wobble
Drill bit binds in workpiece
POSSIBLE CAUSES
1. No power to drill press
2. Defective switch
3. Defective motor
Defective bearings
1. Incorrect belt tension
2. Dry spindle
3. Loose spindle
4. Loose motor pulley
1. Incorrect speed
2. Chips not coming out of table
3. Dull bit
4. Feeding too slow
5. Bit not lubricated
6. Bit running backwards
1. Bent bit
2. Bit not properly installed in chuck
3. Chuck not properly installed
4. Worn spindle bearings
1. Workpiece pinching bit or excessive feed
2. Improper belt tension
3. Workpiece not supported or clamped
properly
CORRECTIVE ACTION
1. Check wiring, fuse or circuit breaker
2. Replace switch
3. Replace motor
Replace bearings
1. Adjust tension
2. Lubricate spindle
3. Tighten pulley nut
4. Tighten set screw in pulley
1. Change speed
2. Retract bit frequently to clear chips
3. Sharpen or replace bit
4. Feed faster; enough to allow drill to cut
5. Lubricate bit
6. Check motor rotation to be sure it is
clockwise facing shaft end
1. Replace bit
2. Install bit properly
3. Install chuck properly
4. Replace bearings
1. Support or clamp work, decrease feed
pressure
2. Adjust tension tighter
3. Support or clamp workpiece securely
11
EN