BIFFI HLA Series, Use And Maintenance Manual

Page: 34 / 41

HLA
– Double acting- hydraulic linear actuator
Use and maintenance manual
© Copyright by BIFFI Italia. All right reserved.
Pag. 34
Contents may change without notice
6 Troubleshooting
6.1 FAILURE OR BREAKDOWN RESEARCH
Event Possible cause Remedy
Actuator does not
work
Lack of hydraulic
supply Open line stop valve
Blocked valve Repair or replace
Wrong position of the
distributor of the
hydraulic manual
override Restore correct
position
Failure of the control
system Call BIFFI Italia S.r.l.
Customer Service
Clogged filter Clean or replace the
cartridge.
Actuator too slow Low supply pressure Restore (Sect. 1.4)
Wrong calibration of
flow regulator valves Restore (Sect. 3.6)
Wear of the valve Replace
Actuator too fast High supply pressure Restore (Sect. 1.4)
Wrong calibration of
flow regulator valves Restore (Sect. 3.6)
Leakages on
hydraulic or
pneumatic circuits Deterioration and/or
damage to gaskets Call BIFFI Italia S.r.l.
Customer Service.
Incorrect position of
the valve Wrong adjustment of
mechanical stops Restore (Sect. 3.4)
Wrong warning of
microswitches Restore (Sect. 3.5)
Hydraulic manual
pump does not work handle positioned on
remote control Position the handle on
the indication of the
operation to make
Leakages on the check
valve of the hydraulic
control group Call BIFFI Italia S.r.l.
Customer Service
Incorrect position of
the valve Wrong adjustment of
mechanical stops Reset (Par. 3.4)
Wrong warning of
micro-switches Reset (Par. 3.5)