Amada ADF4 User manual

© 1999 Amada 1IOM-75458-01
Revision1
Amada
Installation and Operation Manual
with Replacement Parts List
Cartridge Filter Dust Collector
Amada ADF4
IncludesInstallation,Operation,ServiceInstructions
andReplacementPartsList
This manual contains specific precautionary statements relative to worker
safety. Read thoroughly and comply as directed. It is impossible to list all
potential hazards of dust control equipment. Discuss the use and application
of this equipment with an Amada representative. Instruct all personnel
involved with this equipment on safe use and maintenance procedures.
IMPORTANT

© 1999 Amada2
NOTE CAUTION
Statementsindicateprecautionsnecessary
toavoidpotentialequipmentfailure. Statementsindicatepotentialsafetyhazards.
CAUTION
APPLICATION OF DUST CONTROL EQUIPMENT:
•Special care must be exercised in the use
of dust collection equipment when
combustiblematerial,suchasbuffinglint,
paper,wooddust,aluminum,and
magnesiumdustarepresent.These
materialsmaypresentafireorexplosion
hazard. A prudent user of Amada
equipmentshouldconsultand must
complywithallNationalandLocalFire
Codesand/orotherappropriate codes
whendeterminingthelocation and
operationofdustcollectionequipment.
•Under no conditions should anyone,
includingthemachineoperator,allow
burningobjectsorlitcigarettestoenter
the hood or ducting of any dust control
system.
•Avoidmixingcombustiblematerialswith
dustgeneratedfromgrindingofferrous
metalsdue to the potentialfire hazard
caused by sparks being pulled into the
dustcollectionequipment.
•When collection equipment is used to
collectflammableorexplosivedusts,the
dustcollectionequipmentshould be
locatedoutsidethebuilding.Also,an
installeroffireextinguishingequipment,
familiarwiththetypeoffirehazard and
localfire codes, should beconsulted for
recommendationsandinstallationofthe
properfireextinguishingequipment.
Amada equipment does NOT contain
fireextinguishingequipment.
•Explosionreliefventsarerequiredon
someapplications.Consultwithan
insuranceunderwriterora NFPA
Manualtodetermineproperventsizing
requirements.Vents installed on dust
collectionequipmentmustrelievetothe
outsideofthebuildingtominimize
chancesofasecondaryexplosion.
Consult the proper authority to
determine proper method of venting the
dustcollectionequipment.Amada
equipmentdoesNOTcontain explosion
reliefvents,exceptonspecialorder.
•Toinsureoptimumcollector
performance,alwaysuseTorit®Ultra-
Web®IIFRreplacementfilters.

© 1999 Amada 3
Notes and Cautions................................ 2
Data Sheet............................................... 3
1.0 Introduction............................................. 5
1.1 Operational Explanation ....................... 5
1.1.1 Normal Operation .................................. 5
1.1.2 Filter Cleaning ........................................ 5
2.0 Quick Start .............................................. 5
3.0 Installation .............................................. 6
3.1 Inspection ................................................ 6
3.2 Equipment/Tools Required .................... 6
3.3 Preinstallation ......................................... 6
3.4 Assembly of Standard Equipment ......... 7
3.4.1 Delta P Control....................................... 7
3.5 Electrical Operation ............................. 10
3.6 Compressed Air Supply Installation ... 11
4.0 Prestart-Up Check ................................ 11
5.0 Start-Up................................................. 12
6.0 Operating Adjustments ........................ 12
6.1 Delta P Control Calibration ................ 12
6.2 Timer Board Adjustment,
NEMA 4 Enclosure .............................. 13
6.3 Airflow Adjustment.............................. 13
6.4 Operating Checks................................. 14
7.0 Service ................................................... 14
7.1 Filter Cartridges ................................... 14
7.1.1 Filter Cartridge Removal..................... 14
7.1.2 Filter Cartridge Installation................. 16
7.2 Dust Removal ....................................... 16
7.3 Original Equipment Filter Cartridge .. 16
7.4 Compressed Air Components .............. 16
8.0 Troubleshooting Guide ........................ 17
Replacement Parts List ........................ 23
Parts Ordering Information ................. 36
Warranty............................................... 36
TableofContents
Figure 1 -Typical Installation ........................ 4
Figure 2 -Operational Schematic .................. 5
Figure 3 -Delta P Display .............................. 8
Figure 4 -Printed Circuit Board ..................... 9
Figure 5 -Filter Cartridge Replacement...... 15
Parts Drawing 1 -ADF4 Dust Collector ........ 24
Parts Drawing 2 -Cover Assembly ................. 26
Parts Drawing 3 -Manifold Assembly............ 27
Parts Drawing 4 -Solenoid Enclosure
Assembly, NEMA 4 ........... 28
Parts Drawing 5 -Delta P Control.................. 29
Parts Drawing 6 -ADF4 Control Box............. 30
Parts Drawing 7 -Venturi................................ 31
Parts Drawing 8 -Dust Bin .............................. 32
Figures
Customer Name
Address
Shipping Date Installation Date
Model Number Serial Number
Filter Medium
Accessories
Other
Data SheetData Sheet

© 1999 Amada4
Figure1
TypicalInstallation
Customer-Supplied
208V,3Ph
PowerSupplyand
DisconnectSwitch
Regulator
Setting:90to100-psi
CoalescingFilter
Customer-Supplied
CompressedAir
Locate as close to
collectoraspossible.

© 1999 Amada 5
1.0 Introduction
The Amada dust collector is used for the
collection of airborne dust and particulate.
Whether in answer to the problem of air
pollution, or as part of a manufacturing process,
this collector provides highly efficient,
continuous, on-line dust collection.
The Ultra-Web II FR filter cartridges are the
heart of the Amada dust collector. These filter
cartridges help ensure that only clean air is
returned to the plant environment.
Technical and field support are always available
from your local Amada representative and
distributors.
Figure2
OperationalSchematic
1.1 OperationalExplanation
(SeeFigure2)
1.1.1 NormalOperation
During normal operation, contaminated air
enters the ADF4 dust collector through the inlet
and passes down and through the filter
cartridges. Dust is collected on the outside
surface of the filter cartridges. The clean,
filtered air flows through the center of the filter
cartridges into the clean-air plenum, where it
exits through the clean-air outlet.
1.1.2 FilterCartridgeCleaning
Filter cartridges are cleaned automatically and
sequentially. The result is that only one filter
cartridge will be off-line at any given time.
Clean-AirOutlet
Dirty-AirInlet
NormalOperation FilterCleaning
High
Pressure
AirSupply

© 1999 Amada6
During the filter cartridge cleaning purge, the
solid-state timer energizes a solenoid valve,
causing the corresponding diaphragm valve to
send a pulse of compressed air through the filter
cartridge from the inside outward, removing the
collected contaminants from the outside surface
of the filter cartridge. The dust falls into the
hopper and then into the dust storage container.
2.0 QuickStart
(SeeFigure1)
This section provides the basic steps to be
completed before operation and is for reference
only. Follow all guidelines in Section 3.0,
Installation.
1. Connect 208-V, 3-Phase power.
2. Check that fan rotation is clockwise.
3. Connect compressed air with pressure
regulator and filter.
4. Connect duct to unit.
5. Ready to start up.
3.0 Installation
(SeeFigure1)
3.1 Inspection
The unit is normally shipped by truck and
should be checked for any damage that may
have occurred en route. Any damage should be
noted and the carrier notified immediately.
3.2 Equipment/ToolsRequired
Typical tools and equipment required to install
and assemble the unit:
•Crane or Forklift
•Slings/Spreader Bars/Clevis Pins
•Drift Pins
•Clamps
•Screwdrivers
•Pipe Wrenches
•Socket Wrenches
•End Wrenches
•Large Crescent Wrench
•Pipe Sealant
•Caulking Gun
3.3 Preinstallation
(SeeFigure1)
The Amada dust collector is usually mounted on
a reinforced concrete foundation; however, roof
mounting is also possible. When calculating for
foundation or roof mounting, the weight of the
dust collector plus the material being collected
and all auxiliary equipment must be considered
together with wind, seismic, and other live loads.
See the Specification Control Drawing for the
dust collector weight.
To avoid delay, install foundation in the proper
location. Pay particular attention to the anchor
bolt size and location. The collector should be
located with consideration for emptying the
hopper storage area, shortest runs of inlet and
outlet ductwork, electrical and compressed air
connections, and convenience of maintenance. In
case of hazardous dust collection, consult with
local authorities for the proper location of the
dust collector.
Location must be free of obstructions, such
asutilitylinesorroofoverhang.See
SpecificationControlDrawing.Acrane
must be used to position the collector.
CAUTION

© 1999 Amada 7
3.4 AssemblyofStandardEquipment
(SeeFigure1)
Remove all crating and strapping from the unit.
Remove all miscellaneous parts such as bolts,
nuts, or loose components before lifting the unit
off of the truck. Check the parts received
against the packing slips. If there are parts
missing, the carrier and your local Amada
Representative should be notified immediately.
NOTE
NOTE
3.4.1 DeltaPControl
•Connect the lifting sling to the four (4)
cabinetliftinglugs.
•Use clevice pins, not hooks, on the
liftingsling.
• Do not lean unit on legs.
A crane or forklift is recommended for
unloading,assembly,andinstallationof
thedustcollector.
Each item to be attached to the collector is
accompaniedby a drawing thatshows the
attachment process. Refer to both the
drawingandthismanual to install the unit.
CAUTION
CAUTION
•Allelectricalworkmustbeperformed
byaqualifiedelectricianaccordingto
allapplicablenationalandlocalcodes.
•TurnelectricalpowerOFFduring
installation.
•Donotapplyinclassifiedhazardous
atmosphereswithoutanappropriately-
ratedenclosure.
NOTE
•Donotmountcontrolsinhigh-vibration
areaswithoutshockmounts.
•Donotmount controls incorrosive
atmosphereswithoutanappropriate
enclosure.
•Do not operate with enclosure open.
CAUTION
Static-FreeElectronicAssembly
•Usepropergroundingandhandling
procedurestopreventpermanent
damagetothisdevice.
•Handleprintedcircuit board bythe
edgesonly.
•Avoid touching the socketed E2PROM
pins.
NOTE
Ingroundedsystems, connect neutralto
control box to terminal L2 of the solid-state
controltimer.

© 1999 Amada8
1. Using the wiring diagram provided with the
control, wire the alarm circuit labeled
AUXILIARY, if desired. When the pressure
drop reaches the preset alarm value, the
relay will actuate and the LED light
ALARM, on the user interface, will
illuminate. The relay can be used to actuate
visual/audible alarms (by others).
2. Check the tubing to the high and low
pressure ports on the control enclosure. The
high-pressure connection goes to the dirty-
air, or filter side of the collector. The low-
pressure connection goes to the clean-air
side of the collector.
Figure3
DeltaPControlDisplay
3. Apply power to the Delta P Control and
timer. Adjust the setpoints for the high- and
low-pressure drop. These are the pressure
drop setpoints that start and stop the
cleaning process, and the alarm setpoint.
NOTE
Do not attempt to adjust the ON or OFF
time.Thesevaluesarefactorysetfor
maximumperformanceofpulsingsystem
andminimumcompressed-airuse.

© 1999 Amada 9
determine the current settings, but will not
allow any changes until the jumper wire is
removed. Installing a key-operated normally
closed switch through the door of the
enclosure that interrupts the jumper wire,
will provide temporary access to the setting
function without opening the control
enclosure.
3.External Alarm reset
Locate the ARM RESET (TB2) terminal
block in the lower right quadrant of the
printed board. Wire this terminal block to a
key-operated normally open switch. Closing
the switch will turn off the alarm. If the
alarm conditions still exist, the alarm relay
will latch on again in 10 seconds.
OptionalSettings
(SeeFigure4)
1. Change from English to metric units
Locate the jumper block labeled J1, just
above the PROG DISABLE terminals at the
bottom edge of the printed circuit board.
Remove the jumper from the center and left
pins (2 and 3), and reinstall on the center
and right pins (1 and 2).
2.Disabling the setpoint adjustments
To restrict the ability to change the
setpoints, install a jumper wire across the
PROG DISABLE terminals on Terminal
Block 2 (TB2). This will allow the operator
to press the appropriate set keys to
Figure4
PrintedCircuitBoard
Alarm Disable
Alarmor
AuxiliaryRelay
Hi/Lo Timer
ControlRelay
{ {
{ {
Remote Alarm Reset
DisableProgramming
Units ("wg or mm wg)
PowerConnections
VoltageChoiceJumpers

© 1999 Amada10
4.Disable the alarm
Locate the MODE (J5) jumper block in the
lower right quadrant of the printed circuit
board. Remove the jumper from the alarm
position. Disabling the alarm relay reduces
the alarm function to lighting the LED on
the user interface.
1. Reinstalling the jumper in the SLAVE
position—upper and middle pins—causes
the AUXILIARY relay to operate in
parallel to the HI/LO CONTROL relay.
2. If the jumper is not installed in either
position, the AUXILIARY relay does not
function.
5.Analog Output
Locate the SENSOR (TB4) terminal block in
the upper left quadrant of the printed circuit
board. This connector provides a 1 to 5
VDC output proportional to the 0 to
maximum span of the pressure sensor,
10K ohm load minimum.
3.5 ElectricalOperation
Each dust collector comes equipped with 115-
VAC solenoid valves that control the pulse
cleaning valves, which clean the filter
cartridges.
Make the proper electrical and pneumatic
connections to the collector and motor starter
per the diagrams and instructions supplied with
the control panel.
Verify proper blower rotation by pushing the
start-stop button on and off very quickly. The
rotation should be clockwise when looking
down at the top of the motor. Also reference the
rotation sticker on the fan housing. Proper fan
rotation is extremely important.

© 1999 Amada 11
4.0 Prestart-UpCheck
(SeeFigure1)
On hoppers with drum arrangements, make sure
that all the connections are airtight.
3.6 CompressedAirSupplyInstallation
(SeeFigure1)
1. Remove the plastic pipe plug from the end of
the unit's compressed-air manifold and
connect the compressed-air supply line.
2. The compressed-air supply line should be
installed with a safety exhaust shutoff valve,
a bleed-type regulator with a gauge adjusted
to 90-psi, and a coalescing filter with an
automatic drain, all supplied by others. Use
pipe sealant on all compressed-air
connections and locate components for
convenient service.
3. Be sure that all compressed-air components
are adequately sized to meet the maximum
system requirements of 1.1 scfm per pulse at
90- psi supply pressure.
Check that the blower-fan exhaust is free
ofdebrisbeforestarting.
CAUTION
NOTE
Check that the hopper discharge is sealed
and not open to the atmosphere. Too
muchairflow to theblowerfan will cause
electricalfailure.
Turncompressed-airsupply OFF andbleed
supplylinesbeforeperformingservicework.
NOTE
•Thecompressed-airsupplymustbe
bothoilandmoisture free.
Contaminationinthecompressed-air
usedtocleanfiltercartridgeswillresult
inpoorcleaningorcleaningvalve
failureandpoorcollectorperformance.
•Purgecompressed-airlinestoremove
debris before connecting to the
compressed-airmanifoldontheunit.
CAUTION

© 1999 Amada12
5.0 Start-Up
1. Turn the compressed-air to the dust
collector's compressed-air manifold ON. Use
the compressed-air regulator to adjust to
90- psig. Pressure of 90 to 100-psig is the
most typical setting for satisfactory cleaning
performance. See Section 6.0, Operating
Adjustments. The lower the compressed-air
setting, the less pulse-valve air consumption
will be.
2. Turn the blower fan motor ON and check the
rotation by referencing the rotation arrow
decal on the blower fan housing. Rotation
should be clockwise looking down from the
top of the blower fan motor.
3. Adjust the blower fan for proper system
airflow by adjusting the volume control
damper on the chamber silencer discharge.
6.0 OperatingAdjustments
6.1 DeltaPControlCalibration
The only user calibration is the zero adjustment
of the display. Due to slight changes in either
electronic components over time, or pressure
differentials within the plant environment,
occasionally the display may show something
other than 0.0 while at rest. Use the following
procedure to recalibrate the operating system.
1. Power the control for a minimum of thirty
(30) minutes to stabilize the operating
pressure.
2. Remove power from the control so that the
display shuts down.
3. Press and hold the LOW SET, HIGH SET,
and ALARM SET keys while reapplying
power to the control. Continue to hold these
keys while the control goes through a
power-up routine. This is indicated by
sequentially displaying "8" in each digit, and
then displaying "0.0" (see Figure 3, Delta P
Control Display).
4. Release the three keys. The new calibration
automatically stores in the memory.
NOTE
Toomuchairflowcancauseelectrical
systemfailureandresultineventualblower
motorfailure.
Standclear of blowerfanexhaust area, as
debriscan be exhausted andcause injury.
CAUTION

© 1999 Amada 13
6.2 TimerBoardAdjustment,
NEMA4Enclosure
Compressed air is recommended to be set at 90
psig. The control timer is factory set to clean
one filter cartridge every 10 seconds.
If the filter cartridges are operating at a higher
than design pressure drop, it may be lowered by
increasing the frequency of cleaning. See Section
5.4, Operating Checks. The minimum off time
between pulses is three (3) seconds. Additional
cleaning energy may be obtained by adjusting
the pressure upward to a maximum of 100 psig.
Pulse ON time can be checked or adjusted by
consulting your local Amada representative.
If the filter cartridges are operating at a low
operating pressure drop, you may want to raise
to a higher pressure drop level by increasing the
OFF time between pulses on the solid-state
control board. See Section 6.4, Operating
Checks. This will greatly reduce your
compressed air consumption.
6.3 AirflowAdjustment
Airflow adjustments can be made by testing the
duct system flow rate and adjusting the volume
control damper to the desired system flow rate.
Adjust the flow rate to a level that evacuates the
funes from the cutting area.
NOTE
Check the blower fan motor amp draw to
themotormanufacturer'snameplateamp
rating.Overamperagewillcausedamage.
NOTE
Atinitialstart-upwithanynewfilter
cartridges,thefanmotormayoverload
becauseofairflowhigherthandesignlevel.
Ifthishappens,partiallycloseavolume
control damper and check blower fan
motorampdraw.
NOTE
•Donotincreasecompressedairpressure
beyond 100 psig as component damage
mayresult.
•Donot increase or decreasepulse ON
timeonthesolid-statecontroltimer.
Longer or shorter pulse ON times do
notaidincleaningthefiltercartridges,
theyjustwastecompressedairand
causeshortenedfiltercartridgelife.
NOTE
Excessairflowcancauseshortened
filterlife.

© 1999 Amada14
6.4 OperatingChecks
1. Monitor exhaust. Exhaust should remain
visually clean. If a dust leak develops, it will
be noticed as a visual puff of dust
immediately after a cleaning pulse.
2. Monitor filter cartridge pressure drop.
Stable pressure drop is generally 3 to 4-
inches water gauge on a Magnehelic or
Photohelic for seasoned filter cartridges, but
1 to 6-inches water gauge is considered
normal.
7.0 Service
•Disconnectelectricalpowerbefore
servicinganyelectricalcomponents.
•Shut off and bleed compressed air
supplybeforeservicinganycompressed
aircomponents.
•Noweldingshouldbeperformedinside
theunitwithoutfire protection.
NOTE
Atinitialstart-upwithanynewfilter
cartridges,thefanmotormayoverload
becauseofairflowhigherthandesignlevel.
Ifthishappens,partiallycloseavolume
control damper and check blower fan
motorampdraw.
CAUTION
7.1 FilterCartridges
(SeeFigure5)
7.1.1 FilterCartridgeRemoval
When changing the filter cartridges, start at the
top access ports of the unit first, so that the dust
which falls down into the hopper does not have
open access ports below or does not fall on
newly installed filter cartridges.
1. Remove access cover and set aside.
2. Move the filter cartridge to break the gasket
seal between the filter element and the
element panel sealing surfaces. Rotate the
filter cartridge slowly half a turn to dump
any loose buildup of dust off the top of the
filter cartridge. Slide the filter cartridge out
of the front of the dust collector.
•Turn off and lock out power so that the
fan cannot be started and pulsing can
notstart.
•Dust-ladenfiltercartridgesmaybe
heavyanddifficulttohandle.
CAUTION

© 1999 Amada 15
Figure5
FilterCartridgeReplacement
FilterSuspensionYoke
AccessPort
Knob
FilterCartridge
AccessCover

© 1999 Amada16
7.1.2 FilterCartridgeInstallation
1. Install the new filter cartridges gasket end
first.
2. Wipe off access cover gaskets and reinstall
the access covers. Tighten securely by hand.
3. The dust collector is now ready to start. Turn
electrical power ON at source and turn the
compressed-air supply ON before starting.
7.2 DustRemoval
Turn unit OFF and empty container as
necessary to keep the dust in the bin to a
minimum.
7.3 OriginalEquipmentFilterCartridge
(SeeReplacementPartsList)
The filter cartridges provided by Amada are the
only replacement filter cartridges that will
provide the high level of performance that you
expect from your investment in the dust
collector.
7.4 CompressedAirComponents
1. Periodically check the compressed air
components and service by installing new
compressed air filters and draining any
moisture off by following manufacturer's
instructions.
2. With the compressed air supply turned ON,
check the cleaning valves, solenoid valves,
and tubing for any leakage. Replace any
components that are leaking compressed air.
See the Replacement Parts List.
NOTE
•Do not drop or rap the filter cartridge
on the floor or any other hard surface.
Damagetothefiltercartridgewilloccur
andresult inleakage.
•It is necessary to clean the dust off the
filtercartridgesupportpanelaround
the opening and around the access
covergasket to ensureapositive seal of
thenewfiltergasket.
•Insertnewfiltercartridgegasket-end-
first,facingtowardtheclean-airsection
orleakagewilloccur.
•Access cover knobs must be securely
tightened.Lackoffilter-cartridgegasket
compressioncancauseleakage.
Turn compressed air supply OFF and bleed
linesbeforeperformingservicework.
NOTE
Do not let the dust storage container
overfill.Itcancausepoorcollector
performanceandcreateanextensive
cleanup due to overflow of dust when
removingthecontainer.
CAUTION

© 1999 Amada 17
A. Blower fan and motor do
not start. 1. Wiring.
a. Proper wire size not
used for motor.
b. Not wired correctly.
c. Unit not wired for
available voltage.
d. Input circuit down.
e. Electrical supply
circuit down.
1. Starter kicks out.
a. Incorrect starter heater
elements are installed.
b. Collector access covers
are off or not closed
tight.
c. Hopper discharge open
to atmosphere.
1a. Rewire per local and
national codes for proper
wire size.
1b. Check and correct internal
motor wiring for proper
connections for your
voltage. See Wiring
Diagram on motor.
1c. Correct wiring for proper
input voltage.
1d. Check input to motor
circuits for voltage on all
leads.
1e. Check the electrical supply
circuit for proper output
voltage. Check fuse or
circuit breaker fault.
Replace if necessary.
1a. Check for proper motor
starter heater elements.
Replace with proper value
heater elements if needed.
1b. Tighten access covers by
hand securely.
1c. Install bin to hopper
discharge.
B. Blower fan and motor
start, but do not stay
running.
8.0 TROUBLESHOOTING GUIDE
TROUBLE REMEDY POSSIBLE CAUSE

© 1999 Amada18
8.0 TROUBLESHOOTING GUIDE
TROUBLE REMEDY POSSIBLE CAUSE
1d. Check airflow in duct for
proper requirements.
Adjust the damper control
until the proper airflow is
achieved and the blower
fan motor amp draw is
within motor's ratings.
1e. Check that the supply
circuit has sufficient power
to run all equipment.
1. Check that the gaskets on
the filter cartridges are
facing into the cabinet first.
See Figure 5, Filter
Cartridge Replacement and
Section 7.1, Filter
Cartridges.
2. Replace the filter
cartridges. Use only Torit
Ultra-Web II FR filter
cartridges.
3. Tighten access cover knobs
securely by hand.
1. Starter kicks out (contd).
d. Blower fan damper
control not adjusted
properly.
e. Electrical circuit
overload.
1. Filter cartridges installed
improperly.
2. Filter cartridge damage,
dents in the end caps,
gasket damage or holes in
pleated media.
3. Access covers are loose.
B. Blower fan and motor
start, but do not stay
running (contd).
C. Dust discharging out clean
air outlet.

© 1999 Amada 19
8.0 TROUBLESHOOTING GUIDE
TROUBLE REMEDY POSSIBLE CAUSE
1. Fan rotation backwards.
2. Collector openings not tight
or closed.
3. Fan exhaust area is
restricted.
4. Filter cartridges plugged
with particulate.
a. Filter cartridges need to
be replaced.
b. Lack of compressed air.
1. Check fan rotation.
Rotation should be
clockwise when looking
down at the top of the
blower fan motor. See
Section 5.0, Start-Up.
2. Check the access covers to
make sure that they are in
place and tightened
securely. Also check hopper
discharge area to make
sure that the openings are
closed off and that the
optional hopper
attachments are installed.
3. Check fan exhaust area for
blockage. Remove material
or debris blocking the fan
exhaust area or adjust
damper flow control on fan
exhaust area.
4a. Remove and replace filter
cartridges. See Figure 5,
Filter Cartridge
Replacement and Section
7.1, Filter Cartridges.
Reference the Replacement
Parts List.
4b. Check compressed air
supply for 90 psig
minimum. See Figure 1,
Typical Installation.
Increase pressure as
described in Section 6.0,
Operating Adjustments.
D. Insufficient airflow.

© 1999 Amada20
8.0 TROUBLESHOOTING GUIDE
TROUBLE REMEDY POSSIBLE CAUSE
D. Insufficient airflow
(contd). 4. Filter cartridges plugged with particulate (contd).
c. Pulse cleaning not
energized.
d. Dust storage area is too
full or plugged.
5. Pulse valves are not
functioning.
a. Pulse valves are leaking
compressed air.
4c. Check supply voltage to the
timer board with a volt
ohm meter. Check the fuse
on the timer board. If the
fuse is blown, replace it
with one of equal value.
See Section 3.5, Electrical
Operation.
4d. Clean out dust storage area
as described in the Section
7.2, Dust Removal.
5a. Lock out all electrical
power and bleed off the
compressed air supply.
Check for debris, valve
wear or diaphragm failure
by removing the diaphragm
cover on the pulse valves.
Also check for solenoid
leakage and/or damage. If
pulse valves or solenoid
valves and solenoid tubing
are damaged replace parts.
See the Replacement Parts
List.