WAMGROUP MBF User Manual

9.0 INFORMATION REGARDING FAULTS
VL
2
VAL.130.--.M.EN Issue: A1
09.16
49
FAULT POSSIBLE REASON SOLUTION
A) The valve does not open or it
remains opened.
1) Lumps inside the material.
1) Remove the valve, clean it
thoroughly and reinstall it.
2) Bulk density too high.
2) Provide weight relief inside the bin
cone.
3) Actuator air pressure too low.
3) Check for leakages in compressed
air mains and repair.
4) Drive power too low.
4) Check the electric motor and the
mains. Then remove the fault.
B) The valve leaks.
1) Valve does not close completely. 1) See item A.
2) Seal worn out 2) Replace the disc seal.
C) Valve opens and closes with
GLI¿FXOW\
1) See item A.1-A.2-A.3-A.4 1) Ensure valve works in axis
D) Excessive presence of dust
1) Fluidization nozzles too close to
the valve
1.1) Substitute nozzles with vibrator
o knocker or move nozzles from
present position
1.2) Provide breather hole in the
bottom system
2) Material column always too high 2) Provide weight relief above valve
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rear part of the valve
1) Guard incorrectly positioned
1) Fit the guard tightly onto the valve
frame
9.1 Trouble-shooting
Minor problems can be solved without consulting a specialist.
The following Table contains a list of the most common problems, the possible causes and possible remedies.
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Service Department.
Danger - Warning
Before carrying out any operation ³set the valve concerned in safety´ (see ³Glossary and terminol-
ogy´), operate according to the indications on the ³Operation and Maintenance Manual´ and in accord-
ance with and in compliance with the standards in force as regards health and safety.

WAMGROUP MBF Specifications

General

Brand	WAMGROUP
Model	MBF
Category	Industrial Equipment
Language	English