Nederman FilterMax DX Series, Instruction Manual

Page: 30 / 37

30
H
YES
Look into the cartridges and check
if there are any traces of dust. Dust
on the clean side indicates a leak.
Replace damaged cartridges.
NO YES
NO YES
Are the external connections
leaking?
Stop the system. Decrease the
system pressure to < 1 bar. Open
the access door and find the leak.
Shut off the pressure and drain the
tank.
Is a pulse-jet valve leaking ?
Dismantle the valve and check for
contamination or damaged parts.
Clean and/or replace damaged
parts.
Replace other damaged parts.
Repair the external connections.
F
NO YES
Go to
B
NO YES
Is the air temperature below 0
°
C ?
If you have compressed air with a
dew point close to or higher then
the air temperature, the pilot valve
may freeze. An indication is that the
valve starts operating again when
the temperature increases.
Check which valve is mal-
functioning by listening. The valve
sequence is 4 - 5 - 6 - 1 - 2 - 3
(where 1 is to the left when the
door has been opened).
Dismantle the valve housing and
check that the little air hole in the
diaphragm not is blocked.
Change defective valves (spare
part) or repair them with a repair
set (spare part). Mounting/repairing
instructions comes with the spare
parts.
Does the display on the control
box show ERR + a digit?
G
Leaking compressed air system
(notified by sound)
IMPORTANT!
Turn off the compressed air
supply with the service valve
(accessory) before doing any
work on the cleaning system.
Are all cartridges properly installed?
Stop the system! Shut off the
compressed air and drain the tank.
High emission. Abnormal emission
levels in the exhaust air.
Install them properly.
NO
IMPORTANT!
Do not pressurise the system if
the air temperature is below the
minimum operating temperature
(= -20
°
C). At lower air tempera-
tures the process can be started
and operated for a while (approx.
15 min.) whereafter the system
can be pressurised.
One or more (but not all) valves are
not operating correctly.