7 Troubleshooting
EN Floor grinding machine FGE 400
12
7 Troubleshooting
Only suitably knowledgeable, qualified profes
sional technicians may perform repairs on the
machine.
Malfunction
Cause
Rectification
Machine will not start.
The voltage supply has not been
properly connected.
Join the connecting cable (extension
cable) with the proper power socket
and plug the connection cable's coup
ling in the power plug [2, Fig. A].
Connecting cable is defective.
Replace connecting cable.
Safety handle [12, Fig. B] is defec
tive.
Repair or replace safety handle.
When using an extraction, the
suction housing sucks itself to
the floor.
Distance between rubber ring and the
surface to be ground is too little.
Correct the distance between rubber
lip and the surface to be ground
(
!
Chapter 3.1).
Grinding pattern is uneven.
Tools are loose.
Fasten tools.
Tools are damaged or worn.
Replace tools.
Machine shuts down by itself. Machine is overloaded.
The drive overload protection (MOP)
has triggered.
—
Select other tools if necessary
(
!
Chapter 4.4 ‐ page 9).
—
Reset:
a.
Disconnect the power plug
[2, Fig. A] from the mains.
b.
Wait 30 seconds.
c.
Restart the machine (
!
Chapter 3.1).
Connecting cable (extension cable) is
too long.
The minimum cross section and the
maximum length of the connecting
cable (extension cable)
!
Chapter 8
Faulty power supply.
Check the connecting cable
(extension cable) and replace if ne
cessary.
Use a different power socket if ne
cessary.
Drive motor is turning, but the
ETX locating plate is not tur
ning.
Toothed belt is loose or torn.
Tighten or replace toothed belt.
Please contact the manufacturer.
