Nederman E-PAK 150 DX - Page 45

E-PAK 150 DX/300 DX/500 DX
45
EN
WARNING! Risk of personal injuries.
Ensure that there is no vacuum present in the system during service.
WARNING! Risk of personal injuries.
Always disconnect the compressed air supply before any service.
WARNING! Risk of explosion.
Personnel operating E-PAK 150 DX/300 DX/500 DX is to pay special attention
to avoiding discharge of static electricity. The requirements for the safe use
and handling of combustible dust is described in the explosion protection
document. All personnel is to be informed.
WARNING! Risk of explosion.
Stop operation and clean the entire lter thoroughly from dust before any
grinding, welding or other hot works are performed on the lter exterior or
inlet.
If the trouble shooting guide in ‘Table 12-1: Trouble shooting guide’ does not
solve the problem, contact your nearest authorized distributor or Nederman for
technical advice.
Table 12-1: Trouble shooting guide
Error Possible cause Solution
Unit starts without any valve at
any workstation being opened.
The PS cable is short-circuited. Disconnect the cable from the starter and use an
ohmmeter across the leads in turn to locate the fault.
Control lter pressure switch is
triggered.
The control lter is blocked. • Turn o the fan and check that the yellow fault indicator
light goes out. If not, the pressure sensor is broken or
the air lines blocked.
• Replace the control lter.
• Check the main lter for damage.
The Ø 6 mm hoses to the pressure switch
are blocked or damaged.
Clean or replace the hoses.
The pressure switch and/or lter are not
connected properly.
Check the connections.
The pressure switch is set too low. Increase the setting (default: 4 kPa (0.58 PSI)).
The pressure switch is broken. Replace.
No dust is collected in the
collector bin.
Filter cleaning does not work. See Chapter 10 Maintenance.
Insignicant ow on the way to the unit. See ‘Low vacuum or air ow’.
Low vacuum or air ow. Deposits or blockage in ducts on the way
to the unit.
• Clean the ducts.
• Check the transport velocity.
The duct system is not properly
dimensioned.
Re-dimension the duct system or add an extra suction
source.
Valves in the duct system are not working. Check the duct system valves.
The lter cleaning does not work or is
insucient.
Check the function of the lter cleaning.
Filter cleaning does not work. The compressed air pressure or ow is too
low.
• Adjust the pressure.
• Check the hose dimension.
The solenoid valve is not connected
properly.
Check the valve and air pressure.
The air lines, valve and/or cylinder are
blocked.
• Clean or replace the air lines, valve and/or cylinder.
• Filter incoming compressed air.
The cylinder and/or valve does not work. Replace the cylinder and/or valve.
Dust is hard to clean, normal cleaning does
not work.
Contact your nearest authorized distributor or Nederman
for technical advice.
The cleaning interval is too short. Extend the cleaning interval.