Malfunctions
Version 2.1.1 - 2020-07-27
71
Translation of original instruction
B40 GSP
EN
B40G
SP_
GB_6
.f
m
8
Malfunctions
Malfunction
Cause / possible effects
Solution
Noise during work.
•
Spindle is too little lubricated
•
Tool is blunt or wrongly clamped
•
Grease spindle
•
Use new tool and check securing
(fixed setting of the bit, bit holder and
chuck).
Bit „burnt“
•
Drill speed too high /feed too high
•
Chips do not come out of the drill hole
•
Drill blunt
•
No or too little cooling
•
Select another speed
Extract drill more often during work
Sharpen or
use new drill
•
Use cooling agent
Drill tip is running off centre,
the drilled hole is non-round
•
Hard points on the workpiece
•
Length of the cutting spirals/or angles on
the tool are unequal.
•
Drill deformed
•
Use new drill
Drill bit defective.
•
No base / support used.
•
Use support and clamp it with the
workpiece
Drill bit runs unround or
wobbles.
•
Drill deformed
•
Worn out spindle bearings
•
Drill is not correctly clamped.
•
Drill chuck defective
•
Use new drill
•
Have the spindle bearings replaced
•
Correctly clamp drill
•
Replace the drill chuck
It is not possible to insert
the drill chuck or the taper
mandrel
•
Dirt, grease or oil on the taper inside of the
drill chuck or on the taper surface of the drill
spindle
•
Clean surfaces well
•
Keep surfaces free of grease
Motor does not start
•
Motor is wrongly connected
•
Defective fuse
•
Have it checked by authorised person-
nel
Motor is overheating and
there is no power
•
Motor overloaded
•
Too low mains voltage
•
Motor is wrongly connected
•
Reduce feed rate
Disconnect immediately and have it
checked by authorized personnel
•
Have it checked by authorised person-
nel
Precision of the work
deficient
•
Irregularly heavy or tensed workpiece
•
Inexact horizontal position of the part holder
•
Balance the piece statically and
secure without straining
•
Adjust part-holder
Drilling spindle sleeve does
not return to its initial
position
•
Spindle return spring does not work
•
Locking bolt inserted
•
Check spindle return spring, replace it,
if necessary
•
Pull out locking pin
The drilling sleeve may not
be moved downwards.
•
Locking bolt inserted
•
Drill depth adjustment no released
•
Pull out locking pin
•
Release drill depth adjustment
Spindle bearing overheating
•
Bearing worn down
•
Bearing pretension is too high
•
Working at high drilling speed over a longer
period of time.
•
Replace
•
Reduce bearing slack for fixed bear-
ing (conical-roller bearing)
•
Reduce drill speed and feed rate