IMI STI RTQH Series, Инструкция по эксплуатации

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STI S.r.l.
– Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com
Manual 5400, rev. 05 02/2018
– RTQHS
27
9 TROUBLESHOOTING
Event Possible cause Remedy
Actuator doesn’t work
properly
Lack of hydraulic supply Check supply line
Defective main valve Consult valve manufacturer documentation
Failure of the control
group
Call STI s.r.l. - Customer Care Dept.
Actuator too slow
Low supply pressure Adjust supply pressure
Incorrect speed control
settings
Adjust speed controls to increase flow
Exhaust port blocked
Remove and clean the exhaust port silencers and
replace
Wear of the main valve Consult valve manufacturer documentation
Actuator too fast
High supply pressure Reset
Incorrect speed control
settings
Adjust speed controls to decrease flow
Leakages on hydraulic
circuits
Deterioration and/or
damage to gaskets and or
loosed fittings
Tighten loose fittings
Call STI s.r.l. - Customer Care Dept..
Damage to fittings Call STI s.r.l. - Customer Care Dept.
Leakages on hydraulic
cylinder
Damage to seals Replace cylinder seals
Incorrect position of the
valve
Wrong adjustment of
mechanical stops
Re-adjust setting
Wrong electric limit
switches indication.
Re-adjust setting