Troubleshooting
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14/03/2023 212601
8.2 Other Malfunctions and Remedies
The following table shows further faults and their elimination, which are not
shown on the display.
Warning
Danger due to improper troubleshooting.
Improper troubleshooting can result in danger to the operating staff and to the
machine.
Specialized work on the mechanics and electrics may only be carried out by
technical staff.
Fault Cause Remedy
Display is off Machine is in standby mode
Press the rotary switch/push-
button
Machine is not running
Power connection defec-
tive
Drill guard not activated
Control panel defective
Frequency converter de-
fective
Motor defective
Check mains connection
Activate drill guard
Replace control panel
Replace FC
Replace motor
Machine is running, but low
rotation or drilling capacity
Too low tension of ribbed
V-belt
Ribbed V-belt contami-
nated
Tension the ribbed V-belt again
Clean ribbed V-belts and pul-
leys
Unusually loud operating nois-
es of the drive
Too low or too high ten-
sion of the ribbed V-belt
Loosened pulleys
Tension the ribbed V-belt again
Secure pulleys
Drill runs out of true
Drill chuck not correctly
mounted
Clamping jaws of the
chuck defective
Spindle is defective
Reinstall drill chuck
Replace drill chuck
Replace spindle
Drill generates sparks or
smokes
Speed not suitable for the
drill
Poor swarf removal
Drill is blunt or broken
Drill requires coolant or
lubricant
Feed too low
Adjust the speed according to
the manufacturer's instructions
Lift drill and remove swarf
Sharpen or replace drills
Use coolant or lubricant
Increase feed
Drill has jammed in the work-
piece
Feed too high
Poor swarf removal
Reduce feed
Lift drill and remove swarf
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