LRV-1 lift control valve
83/86
300-I-9010050-E-28/02.2012
6.2
Hydraulic fluids
6.2.1
Jerky movement at low speed
If the lift cylinder tends to jerky movements at slow speed an oil with
special sliding properties is required. In this case approval is given for
the following product:
Shell Tonna S
Do not use any other slideway oil unless you have discussed its use
with Bucher Hydraulics AG and received their written approval.
If the use of Shell Tonna S is not an option, the oil additive supplied by
Bucher Hydraulics AG can be added to a standard HLP hydraulic oil as
an alternative:
Motorex Hydrogliss 202
The previously supplied Bucher Hydraulics Additive Oil Art.Nr. 00912 as
well as Fuchs Renolin Anti Stick Slip are approved, too.
Other oil additives are not permitted.
The amount of additive must not exceed 2% max. of the oil volume
present.
If other additives are used or the permitted quantity of the a.m. additives
is exceeded, the proper function of the lift control valve cannot be
guaranteed.
6.2.2
Mineral oils
Hydraulic oil (code)
Viscosity
[mm
2
/s] (cSt)
Permissible
temperature range **
to DIN 51525
to ISO 6074
at 40°C
min. °C
max. °C
H-LP 32
ISO VG 32
32
0
52
H-LP 46
ISO VG 46 *
46
2
62
H-LP 68
ISO VG 68
68
8
70
H-LP 100
ISO VG 100
100
15
70
Shell Tonna S32
32
0
52
Shell Tonna S68
68
8
70
* This oil can be used in most applications. For frequently-used passenger lifts, the thicker VG 68 oil should be used.
The type of oil actually used to fill the system must be recorded by the lift manufacturer in the designated field on the
nameplate of the submersed motor/pump power unit.
** The permissible temperature range is determined by the permissible viscosity range of 20…500cSt. Independent of
the viscosity the temperature must not fall below 0°C and must not not exceed 70°C.
Maintenance
