HLA
– Double acting- hydraulic linear actuator
Use and maintenance manual
© Copyright by BIFFI Italia. All right reserved.
Pag. 29
Contents may change without notice
AGIP MU/EP/2
AEROSHELL GREASE 7 or
equivalent
To be used in standard temperature
conditions (-30°C/+85°C)
NLGI consistency: 2
Worked penetration: 280 dmm
ASTM Dropping Point: 185°C
Base oil viscosity at 40°C: 160 mm²/s
ISO Classification: L-X-BCHB 2
DIN 51 825: KP2K
–
20
Equivalent to: ESSO BEACON EP2
BP GREASE LTX2
SHELL ALVANIA GREASE R2
ARAL ARALUB HL2
CHEVRON DURALITH GREASE EP2
CHEVRON SPHEEROL AP2
TEXACO MULTIFAK EP2
MOBILPLEX 47
PETROMIN GREASE EP2
To be used in low temperature
conditions
(-60°C/+65°C)
Colour: Buff
Physical state: Semi-solid at
ambient temperature
Odour : Slight
Density : 966 Kg/m³ at 15°C
Flash Point : ›215°C (COC)(Based
on synthetic oil)
Dropping point : 260°C (ASTM D-
566)
Product code : 001A0065
Infosafe No.: ACISO GB/eng/C
If there are leaks in the hydraulic cylinder, or a malfunction in the
mechanical components, or in case of scheduled preventive
maintenance, the actuator must be disassembled and seals must be
replaced with reference to the follow general sectional drawing and
adopting the following procedures:
5.2.2 Replacement of cylinder seals (refer to table on pag. 31)
Before carrying out any maintenance operation, it is necessary to
close the hydraulic feed line and exhaust the pressure from the
actuator cylinder and from the control unit, to ensure safety of
maintenance staff.
1) Unscrew the adjusting screw cover (for low pressure cylinder) or
the protection plug (12) (for high pressure cylinder) from the
cylinder end flange.
2) Measure the distance of the stop screw (2) with reference to the
end flange (6) surface, so as to be able to easily restore the
setting of the actuator mechanical stop, once the maintenance
procedures have been completed.
