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Operating Instructions Elevator Buffers LP Page 6 Edition 3.3.1 EN of 03.04.2017
7.5 Check the piston rod for icing
If the buffer is operated at ambient temperatures
below the freezing point, the piston rod must be
protected from the accumulation of frost, snow
or ice. It is necessary to check whether the
measures taken to prevent icing are functioning
properly.
8 Maintenance
Under normal operating conditions the elevator
buffer LP does not require maintenance. How-
ever, if during the a/m checks defects are de-
tected, these can be removed as described in
the following.
Every time, safety measures must be taken
against unintentional setting in motion of the
elevator!
8.1 Removing the protection tube
For buffers with a protection tube (Fig. 1a) this
should be removed for maintenance work. For
this purpose remove the three hexagonal screws
12. Push the protection tube 10 downward into
the service position "X". The oil filling screw 14
and the gas filling valve 15 are now accessible.
At the same time the limit switch 13 is actuated.
After termination of the maintenance work the
protection tube is mounted in reverse order.
!
Warning!
The buffer is pressurised.
Prior to opening the buffer and for oil refilling the pressure must be released!
8.2 Relieving gas pressure
Remove the valve cap from the gas filling valve
15 in order to uncover the valve opening.
Place a tire filling device on the filling valve and
let the gas escape. As an alternative you can
press in the valve cone with a suitable pointed
object and let the gas escape.
.
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