Series MNK pedestal group 4
Page
13
9230-003-en
Revision 19
TM 10458
Edition 06/2022
5.8 Coupling
If one coupling half engages with the other, the claw
section is normally to be mounted on the drive shaft
and the coupling half with the smooth end face on the
motor shaft.
Observe the operating manual of the coupling manu-
facturer.
A coupling with a valid ATEX certificate is to be used if
deployed in zone 1 and 2.
Regulations exist, e.g. for the following details:
♦
Arrangement of the coupling halves
♦
Max. bore diameter
♦
Max. transmitted power
♦
Spacing of the coupling halves
♦
Maximum values for offset and angular misalign-
ment.
♦
Maximum values for offset and angular misalign-
ment.
5.9 Final check
Check the alignment of the coupling again in
accordance with
Section 5.3
.
It must be possible to easily turn the unit at the coupling
by hand.
5.10 Coupling guard
The pump may only be operated with a coupling guard
in accordance with the accident prevention regulations.
It should be ensured that the coupling pro-
tection used either consists of non-spark-
ing material or fulfills the impact resistance
test required by DIN EN ISO 80079-36
without any problem.
It must be ensured that the coupling guard used is ei-
ther made of spark-free material or the impact test re-
quired by the EN 13463 is satisfied without any reser-
vations. Richter offers both versions.
The operator must ensure that, after the
coupling protection has been mounted,
the requirements of the machine guideline
are fulfilled.
5.11 Electric connection
The operator is obligated to connect the assembly in
accordance with existing regulations 8 (IEC, VDE, etc.).
Only have the electric connection per-
formed by a qualified electrician.
Compare the available mains voltage with the infor-
mation on the type plate of the motor and select a suit-
able circuit.
A motor protection device (motor-circuit switch) is
urgently recommended.
Danger of explosion if the electrical instal-
lation is incorrect.
In potentially explosive areas IEC 60079-
14 must also be observed for the electri-
cal installation.
If the pump is mounted on a base plate, ensuring elec-
trical conduction through the use of a chopper disk or
contact disk on the housing foot and support bracket.
The assembly must be grounded in accordance with
currently effective regulations, for example, on the base
plate.
