Installation, Operation and Maintenance Manual
DCE 2000 Series Dust Collectors
31
maIntenanCe
symptom
table 4 – fault loCatIon
possible cause
action
1 Part loss of suction
(excessive pressure
differential).
3 Visible effluent in
clean air outlet.
2 Total loss of suction.
1.1 Compressed air
mal function.
1.2 No pulses of air to
valves.
1.3 Filter blocked.
1.4 Motor speed low.
1.5 Incorrect fan motor
rotation.
a If compressor stopped, rectify compressor fault;
check interlocks; check motor and supply; check
drive.
b If compressor OK, check pulses at manifold
pressure gauge.
c Clean filters, dismantle and clean moisture
separator.
d Check for excessive water or oil in compressed
air supply, and possible accumulation in
manifold.
a Refer to 'Fault location' table in controller manual
supplied with dust collector.
a Check that emptying device or equipment being
served is working. Check starter overloads,
fuses and interlocks.
b Run unit clear*, then remove each element in
turn and vacuum-clean all its outer surfaces.
Renew any filter bags that are damaged.
a Check line voltage, phases, fan motor
connections. For Star/Delta applications, check
motor is in Delta.
a Check electrical connections and transpose if
necessary.
a Check motor supply overloads, fuses and
interlocks (if fitted).
b Check motor connections and windings.
a Check that emptying device or discharge
equipment is working. Check starter overloads,
fuses and interlocks.
b Run unit clear*, then remove each element in
turn and vacuum-clean all its outer surfaces.
Renew any filter bags that are damaged.
a Check throughout and clear.
a Tighten element retaining bolts to ensure
compression of sealing rings.
a Damaged filter bag can be identified by the dust
present in clean air chamber. Withdraw element
and renew bag.
2.1 Fan motor stopped.
2.2 Filter blocked.
2.3 Ducting blocked.
3.1 Filter elements not
properly sealed.
3.2 Damaged filter bag.
*To run unit clear, switch off main fan only and allow the controller to perform
several complete cleaning cycles before switching off compressor etc.
this procedure is not recommended where explosion panels are fitted, as damage
could result to the Membrex membrane. In such cases consult with Donaldson.
Summary of Contents for DCE 2000 Series
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