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5 Acceptance and transportation
EN Floor grinding machine DSM 530S / DSM 650S / DSM 800S
6 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 a proper
power socket and plug the connecting cable’s plug into
the power plug [4, Fig. A].
Connecting cable is defec-
tive.
Replace connecting cable.
Safety switch is defective.
Replace safety switch.
The safety cap
[17, Fig. B/D] is not pro-
perly engaged.
If necessary, press the safety cap on the safety switch until
it snaps in.
EMERGENCY STOP but-
ton is pressed.
1.
Turn
FWD/0/REV
rotary switch to
0
.
2.
Determine the cause for the emergency stop and
rectify if necessary.
3.
Unlock the EMERGENCY STOP button afterwards.
When using an
extraction, the
suction housing
sucks itself to
the floor.
There is not adequate
clearance between the
dust cover and the surface
to be ground.
Correct the clearance between the dust cover and the
surface to be ground ( Chapter 3.1 - page 17).
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 protec-
tion (MOP) has triggered.
1.
Press RESET button [15, Fig. B].
2.
Put the machine into operation
( Chapter 3.1 - page 17).
3.
If necessary, reduce the speed with the
SPEED
regula-
tor.
Connecting cable (exten-
sion cable) is too long.
The minimum diameter and the maximum length of the
con- nection line (extension cable) Chapter 7
Faulty power supply.
Check the connecting cable (extension cable) and replace
if necessary.
Use a different power socket if necessary.
The motor is ro-
tating but the
grinding plate is
not turning
under load.
The main drive belt is sli-
ding out.
To tension the main drive belt:
1.
Switch the machine off
( Chapter 3.4 - page 18).
2.
Tilt machine
( Chapter 4.2 - page 19).
3.
Unscrew the screw [41].
4.
Tighten the clamping screw 1½ rotations clockwise with
the [42] spanner [40] ( arrow).
5.
Retighten the screw [41] with the spanner (turning lock,
Fig. N).
6.
Place the machine in operation ( Chapter 3.1 - page
17).
7.
Check whether the grinding plate turns under load.
8.
If the belt tension is not yet sufficient, repeat steps
1 through 7.
