HLA
– Double acting- hydraulic linear actuator
Use and maintenance manual
© Copyright by BIFFI Italia. All right reserved.
Pag. 9
Contents may change without notice
2.3 STORAGE
If the actuator needs storage, before installation follow these steps:
❑
Place it on a wood surface in order not to deteriorate the area of
valve coupling.
❑
Make sure that plastic plugs are present on the hydraulic and
electrical connections (if present).
❑
Check that the cover of the control group and of the limit switch box
(if any) are properly closed.
If the storage is long-term or outdoor:
❑
Keep the actuator protected from direct weather conditions.
❑
Replace plastic plugs of hydraulic and electrical connections (if any)
with metal plugs that guarantee perfect tightness.
❑
Coat with oil, grease or protection disc, the valve coupling area.
❑
Periodically operate the actuator (Sect. 3.3).
2.4
ACTUATOR ASSEMBLY ON THE VALVE
2.4.1 Types of assembly
The adapter pedestal in fabricated carbon steel is specifically
designed for adaptation to any type of valve with provision for local
indicator, limit switches and other accessories (on request).
Lift the actuator by safety-hook for chains using the lifting-points (see
sect. 2.2) on the top of actuator for handling, transporting and
assembling in vertical position (see picture 1).
For handling,
transporting and assembling the actuator in horizontal position by
safety-hook for chains use the lifting-points on the top of cylinder
head-flange and on coupling flange (see picture 2).
2.4.2 Assembly procedure
Failure to comply with the following procedures may
impair product warranty. Installation, commissioning
and maintenance and repair works should be carried
out by qualified staff.
A non-conforming assembly could be the source of
serious accidents.
