Burkert Type 2301 - Manual (Page 42)

42
Malfunctions
11 malfuncTiOns
malfunction remedial action
Actuator does
not switch Pilot air port interchanged 15)
CFA
→
Connecting pilot air port 1
CFB
→
Connecting pilot air port 1
CFI
→
Pilot air port 1: Open
Pilot air port 2: Close
Pilot pressure too low
→
Observe pressure specifications on the
type label
Medium pressure too high
→
Observe pressure specifications on the
type label
Flow direction reversed
→
Observe direction arrow on the body
Tab. 16: Malfunctions - 1
15)
See diagram “Fig. 15: Pneumatic connection” in the chapter of
the same name.
malfunction remedial action
Valve is not
sealed Dirt between seal and valve seat
→
Installing dirt trap
Seat seal worn
→
Installing a new control cone
Flow direction reversed
→
Observe direction arrow on the body
Medium pressure too high
→
Observe pressure specifications on the
type label
Pilot pressure too low
→
Observe pressure specifications on the
type label
Valve is leaking
on the release
bore Packing gland worn
→
Replacing packing gland
Tab. 17: Malfunctions - 2
english
Type 2301