15. Troubleshooting Problem
Possible cause
Solution
Excessive vibration
Motor not balanced Bad motor Feeding too fast Dull drill bit Motor not building up right speed Bad motor Excessive vibration
Balance or replace motor Replace motor Decrease feed speed Sharpen drill bit Change or repair motor. Check the fuses for all three phases and if necessary, replace them Replace the motor See remedy under “Excessive vibration�
Improper quill adjustment
Adjust quill
Noisy spindle
Lubricate spindle
Noisy motor
Check motor bearings or check for loose motor fan Change speed Retract drill bit frequently to clear chips Resharpen or replace drill bit Increase feed speed, allow drill bit to cut Reverse motor rotation Use cooling equipment Centre punch or centre drill workpiece Sharpen drill bit Install quill properly Replace bearings Use a straight drill bit Replace bearings Install drill bit properly
Motor stalls
Noisy operation
Drill bit burns
Drill bit leads off
Excessive drill bit run out or wobble
Work piece of clamp torn loose
Incorrect speed Chips not coming out of hole Dull drill bit Feeding too slow Rotation of drill incorrect No cooling No drill spot Cutting lips on drill Loose quill Worn spindle bearings Bent drill bit Worn spindle bearings Drill bit not properly installed in chuck Not supported or clamped properly
Support work piece or clamp it
16. Part lists Figure F No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
Description Cap Airtight ring Retaining ring Ball bearing Motor Screw Key Oil seal Retainer ring Ball bearing Head body cover Trademark Rivet Soft pipe Radiator Oil filler plug Spring
Art.no.
510226
-20-
No. 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90
Description Pin Knob Support base Feed base Nut Washer Screw Nut Fixed nut Graduated rod Pin Screw Scale board Fixed bolt Turn handle Handle wheel Screw
Art.no