Loher Str. 4
58332 Schwelm
Germany
fon: +49 2336 92 98-0
fax: +49 2336 92 98-100
info@henning-gmbh.de
www.henning-gmbh.de
www.henning-cnc.de
Operating Instructions Elevator Buffers LP Page 3 Edition 3.3.1 EN of 03.04.2017
4.3 Place of Installation
The place of installation should be in a clean
and dry condition.
Verify the place of installation of the buffer and
the bearing capacity of the mounting surface.
Verify the size of the remaining lower refuge. For
an entirely pressed-in elevator car buffer a suffi-
ciently dimensioned refuge must be provided
below the elevator car in compliance with the
respective code.
The piston rod should not be contaminated by
external impact.
During operation of the elevator it has to be en-
sured that the surface of the piston rod is free of
adherences of snow and/ or ice and not frosted.
In case of dissenting operation conditions,
please contact Henning GmbH & Co KG.
5 Mounting
!
Safety Instruction:
Prior to all mounting and maintenance work, an appropriate measure to prevent au-
tomatic switching on or automatic start-up of the drive must be in place!
1. The buffer is supplied ready for installation
complete with oil filling.
2. If the buffer is supplied with pressed-in pis-
ton rod, the securing devices should be re-
moved. Cut the securing straps at the side
when the buffer is standing upright.
Warning! The extending piston rod can
cause injury!
3. Fastening material should be ordered sepa-
rately. Suitable means are heavy-duty dow-
els or rag bolts M 16x160 DIN 529 with nuts
and washers 18 DIN 126.
4. Fastening should be made in the upright
condition directly on the ground or on a suit-
able console. The buffer piston rod should
be accurately mounted in the vertical posi-
tion. Therefore, mounting must be made on
a horizontal surface or suitable shims should
be used.
5. The buffer should be fixed exactly under the
centre of gravity of the elevator car or coun-
terweight respectively. If several buffers are
used, these must be distributed symmetri-
cally to the centre. Check the alignment of
the buffer e. g. using a water level. The pis-
ton rod has to point vertical up.
6. Press-in the piston rod several times by
hand. This permits transport-caused air
bubbles to escape from the hydraulic fluid.
Subsequently, the piston rod must be com-
pletely extended and the oil level correct.
If buffers may be dis-
placed for service work
at the elevator e. g. by
1. The elevator may only be set into operation again if the buffer
is replaced to its working position and fastened correctly. We
recommend installing a suitable electrical controlling device.
2. Then press-in the piston rod of the buffer at least two times.
This allows air bubbles escaping from the hydraulic cylinder.
3. Finally check, that the piston rod is fully extended and the oil
level is correct.
4. Fix suitable instructions for acting near the point of installation.
• swinging to a service position
or
• removing
please note:
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