Inhaltsverzeichnis
Werbung
Verfügbare Sprachen
Verfügbare Sprachen
7
Malfunctions
Malfunction
Noise during work.
Bit „burnt"
Drill point runs off, drilled hole
is not circular.
Drill is running non-round or
shaking
The drill chuck or the Morse
taper MT2 / B16 cannot be
inserted or does not hold in
the taper by itself.
Motor does not start.
Motor runs only if the push
button "On" is pressed
permanently.
Precision of the work deficient
Drilling spindle sleeve does
not return to its initial position
Malfunctions
Version 1.0.1 - 2021-05-11
Cause/
possible effects
•
Tool blunt or incorrectly clamped.
•
Grease at the toothing of the spin-
dle used up
•
Spindle bearing defective
•
Incorrect speed
•
Chips are not coming out of the
drilled hole.
•
Blunt drill bit.
•
Operating without cooling agent.
•
Hard material or length of the cut-
ting spirals/or angles on the tool are
unequal
•
Drill bit is bent.
•
Drill bit is bent.
•
Drill is not correctly clamped.
•
Drill chuck defective
•
Dirt, grease or oil on the taper
inside of the drill chuck or on the
taper surface of the drill spindle
•
Drill chuck guard not closed
•
Protective cover V-belt not closed
•
Defective control fuse (microfuse)
•
Relay restart protection defective.
•
Heavy and unbalanced or deformed
work-piece.
•
Inexact horizontal position of the
work-piece holder.
•
Spindle return spring
Translation of original instruction
Solution
•
Use new tool and check tension (fixed
setting of the bit, drill chuck and taper
mandril)
•
Put grease in,
Toothing of the spin-
dle on page 66
•
Have permanently lubricated spindle
bearings replaced by qualified person-
nel.
•
Choose a different speed, excessive
feed.
•
Retract the drill bit from the bore hole
more often.
•
Sharpen the drill bit or insert new drill
bit.
•
Use coolant.
•
Use a new drill bit.
•
Replace drill bit
•
Clamp the drill bit properly.
•
Replace the drill bit chuck.
•
Clean surfaces well.
•
Keep surfaces free from grease.
•
Close drill chuck guard
•
Close protective cover of V-belt
•
Check control fuse and replace if nec-
essary
„Img. 6-4: Fine-wire fuse" on
page 67
•
Have On / Off switch KJD17B replaced
by qualified personnel.
•
Balance the piece statically and secure
without straining
•
Adjust workpiece-holder
•
„Img. 6-2: Spindle return spring" on
page 65
DQ20V
EN
69
Werbung
Inhaltsverzeichnis
