15. Troubleshooting
Problem
Excessive vibration
Motor stalls
Noisy operation
Drill bit burns
Drill bit leads off
Excessive drill bit run out or
wobble
Work piece of clamp torn
loose
16. Part lists
Figure F
No.
Description
1
Cap
2
Airtight ring
3
Retaining ring
4
Ball bearing
5
Motor
6
Screw
7
Key
8
Oil seal
9
Retainer ring
10
Ball bearing
11
Head body cover
12
Trademark
13
Rivet
14
Soft pipe
15
Radiator
16
Oil filler plug
17
Spring
Possible cause
Motor not balanced
Bad motor
Feeding too fast
Dull drill bit
Motor not building up right
speed
Bad motor
Excessive vibration
Improper quill adjustment
Noisy spindle
Noisy motor
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
Art.no.
510226
-20-
Solution
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"
Adjust quill
Lubricate spindle
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
Support work piece or clamp it
No.
Description
74
Pin
75
Knob
76
Support base
77
Feed base
78
Nut
79
Washer
80
Screw
81
Nut
82
Fixed nut
83
Graduated rod
84
Pin
85
Screw
86
Scale board
87
Fixed bolt
88
Turn handle
89
Handle wheel
90
Screw
Art.no