OLEO SEB 16 Guia De Instalacion página 3

INDICATION OF USE
Oleo buffers are supplied with a standard finish for dry
conditions.The standard finish is not suitable for wet or
corrosive conditions such as mineshafts etc.
Environmental temperature acceptable conditions: -15°C
to 70°C
Note: for special conditions outside the above consult Oleo
International.
Buffers are to be fitted vertically parallel to guide rail
+/- 5mm. For non vertical applications please consult Oleo
International.
PREPARATION FOR INSTALLATION
The Oleo elevator buffer is supplied with a sealed gas
precharge; the plunger is held in the fully compressed
condition during transportation by means of a transit
bolt/retainer. The transport retainer must be removed, and
the plunger allowed to extend fully. The following is the
recommended removal procedure.
Before fitting buffer isolate the lift car while working
underneath.
Before the buffer is released ensure that there is sufficient
clearance to allow full extension. Do not stand over the
buffer.
Use appropriate lifting equipment for designated weight of
buffer, do not lift the buffer using the plunger.
Weight of buffer is shown in table 1.
Undo and discard transportation screw as per diagram on
Page 1.
The units will require filling with oil to the specified level.
At installation the correct oil level of all buffers must be
checked.
Make electrical connections to the limit switch.
NOTE: For base fixing-minimum rawl bolt depth in floor
should be 90mm bolt shank diameter 12mm.
The maximum overall height should be checked against
table 1 and should be within +0/-8mm of the figure stated.
SEB 16-25
OIL FILLING PROCEDURE
The filling can be either before or after installation of the
buffer but the correct level must only be checked when
extended.
The correct oil specification is listed on the data label for
each code
a) Securely mount the buffer in the shaft bottom.
b) Remove oil filler plug and dipstick.
c) Fill the unit with oil if necessary, the approximate volume
is stated in table 1.
d) Take care when handling the oils. Observe the oil
manufacturers recommendations.
e) Allow to stand for 30 minutes, then check oil level with
dipstick when buffer is fully extended and top up as
necessary. Leave to stand for a further 20 minutes,
recheck and top up again if required. The oil must be at
the level indicated on the dipstick.
f) If possible compress the plunger, then release - observing
that full extension is smoothly attained.
g) Refit oil/filler/dipstick.
MAINTENANCE
Inspection need be no more frequent than the local
statutory checks on elevator installations or following an
impact. At the time, it is only necessary to simply check that
the oil level is correct and that the overall height remains
to the correct measurement. After impact check buffer
visually for any damage. Check gas spring by making sure
the buffer has fully re-extended.
Remove and clean away any dirt and debris around the
plunger and switch. Check the alignment of the striker, this
should be parallel with the plunger and switch, in a vertical
position.
NOTE: If the buffer has not returned to the fully extended
position (determined by measuring overall height) contact
the buffer supplier.
OIL SPECIFICATION
The oil must conform to the specification on the buffer data
plate - ISOVG68 - SG .88/.90 at 15°C - hydraulic.
Pour Point -18°C or lower.
Viscosity index 75 or higher.
OLEO INTERNATIONAL
2