OLEO LSB 10 Guide D'installation page 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 LSB elevator buffers are supplied in the fully extended
condition. The plunger buffer recoil is achieved by an
external mechanical spring. These buffers are not supplied
with a sealed gas precharge.
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.
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 LSB 10 base fixing-minimum rawl bolt depth
in floor should be 40mm bolt shank diameter 10mm.
For LSB 16-18 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/-3.7mm for LSB 10 and
+0/-4.8mm for LSB 16 and 18 of the figure stated.
LSB 10-18
OIL FILLING PROCEDURE
The filling can be before or after installation of the buffer
but the correct level must only be checked when
extended. The buffer must be vertical when filled.
The correct oil specification is listed on the data label.
a) Securely mount the buffer in the shaft bottom.
b) Remove dipstick. Fill buffer with oil to a level
between the maximum and minimum marks as shown
in Figure A.
c) Take care when handling the oils. Observe the oil
manufacturers recommendations.
d) To check oil level wipe any oil off dipstick rod. Push
dipstick back into the hole without screwing it in.
Remove dipstick out of the hole and inspect level.
e) After oil filling leave the buffer to stand on its base for
15 minutes, then recheck the oil level. This is to allow
the oil to settle and ensure an accurate reading is
taken. It may be necessary to repeat step d). until
desired oil level has been established.
f) Important: Do not overfill past the maximum
dipstick mark when oil level is established, replace and
tighten dipstick.
g) If possible compress the plunger, then release –
observing that full extension is smoothly attained.
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.
O L E O I N T E R N AT I O N A L
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