4 Troubleshooting
EN Floor grinding machine FGE 250
9
4 Troubleshooting
Only suitably knowledgeable, qualified profes
sional technicians may perform repairs on the
machine.
Malfunction
Cause
Rectification
Machine will not start.
Connecting cable for the voltage sup
ply is not properly connected with the
power socket.
Plug power plug [16, Fig. D] into the
socket.
Connecting cable is defective.
Replace connecting cable.
Safety switch is defective.
Replace safety switch.
Grinding pattern is uneven.
ETX diamond tools are loose.
Fasten ETX diamond tools.
ETX diamond tools are damaged or
worn.
Replace ETX diamond tools.
5 Maintenance
Observe the safety instructions in Chapter 2!
The operating and maintenance personnel resp
onsible for the machine must ensure that no one
can enter the machine’s danger zone during
operation or maintenance work!
Maintenance work may only be performed by
trained specialists! They must be familiar with
the dangers associated with such work, protect
themselves and avoid danger!
When working on the machine (set-up, mainte
nance, service, repair, cleaning, etc.), the power
supply of the machine has to be disconnected
from the mains
(disconnect power plug)!
Perform cleaning and maintenance work in ac
cordance with the operating manual and check
the safety equipment for completeness and
functionality.
5.1 Customer service and spare parts
In case of customer service queries, replacement
parts or repairs, please contact the manufacturer. To
ensure your queries are dealt with as quickly as pos
sible, always quote your machine data. These are
located on the machine’s nameplate.
5.2 Mounting and dismantling ETX diamond
tools
The consistency of the surface to be ground de
termines type or the composition of the ETX diamond
tools to be used.
1.
Pull the power plug [16, Fig. D] from the line to
the voltage supply.
2.
Remove assembly tool [20, Fig. D] from the ma
chine console [9].
3.
Place the machine with the handle [1, Fig. A] on
the floor (
!
Fig. K).
4.
With the machine tipped, the grinding
plate [22, Fig. E] is accessible with the ETX
diamond tools [23, Fig. E].
The ETX diamond tools need to be checked for
wear and damage by the user before each use
and be replaced by new ones if necessary.
5.
Use the assembly tool to loosen the three clam
ping screws [24, Fig. E] of the retaining ring.
6.
Turn retaining ring [25, Fig. F] counter-clock
wise to full stop. (
!
arrow)
The three recesses [27, Fig. F] have to be posi
tioned each at one ETX diamond tool.
7.
Loosen the ETX diamond tool [23, Fig. G] from
the grinding plate with a gentle strike of a lump
hammer and remove it. (
!
arrow)
8.
Remove all ETX diamond tools.
9.
Insert new ETX diamond tool [23, Fig. G] into
the recess [27, Fig. F] of the grinding plate and
press in firmly in the direction of the arrow (use
lump hammer if necessary).
10. Mount all ETX diamond tools.
11. Turn retaining ring [25, Fig. H] clockwise to full
stop. (
!
arrow)