ABAC A39B/90 CT4 [18/96] Fault cause remedy
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ABAC A39B/90 CT4 [18/96] Fault cause remedy

ABAC S A39B/200 CT4 [18/96] Fault cause remedy
18
G
B
pressurecanberegulatedinordertooptimizeuseofair-poweredtools
operatingontheknobwiththevalveopen(pullingitupandturningitina
clockwisedirectiontoincreasepressureandcounterclockwisetoreduce
this)(fig. 8).Onceyouhavesetthevaluerequired,pushtheknobdownto
lockit.
•Thevaluesetcanbecheckedonthegauge(forversionsequippedwith
this,fig. 9).
•Please check that the air consumption and the maximum working
pressure of the pneumatic tool to be used are compatible with the
pressure set on the pressure regulator and with the amount of air
supplied by the compressor.
•Whenyouhavefinishedworking,stopthemachine,pullouttheplugand
emptythereservoir.
AIR RECEIvER (ON TANk-mOUNTED UNITS)
3
•Corrosion must be prevented: depending on the conditions of use,
condensatemay accumulateinsidethetank andmustbedrainedevery
day.Thismaybedonemanually,byopeningthedrainvalve,orbymeans
oftheautomaticdrain,iffittedtothetank.Nevertheless,aweeklycheckof
correctfunctioningoftheautomaticvalveisneeded.Thishastobedone
byopeningthemanualdrainvalveandcheckforcondensate(fig. 13).
• Periodical service inspection of the air receiver is needed, as internal
corrosion can reduce the steel wall thickness with the consequent risk
of bursting. Local rules need to be respected, if applicable.The use of
theairreceiverisforbiddenoncethewallthicknessreachestheminimum
valueas indicated in the servicemanual of the air receiver(part of the
documentationdeliveredwiththeunit).
•Lifetimeoftheairreceivermainlydependsontheworkingenvironment.
Avoidinstallingthecompressorin a dirtyandcorrosiveenvironment,as
thiscanreducethevessellifetimedramatically.
•Donotanchorthevesselorattachedcomponentsdirectlytotheground
orfixedstructures.Fitthepressurevesselwithvibrationdamperstoavoid
possiblefatiguefailurecausedbyvibrationofthevesselduringuse.
•Use the vesselwithinthepressureandtemperature limits statedonthe
nameplateandthetestingreport.
•Noalterations must be made to this vesselby welding, drilling or other
mechanicalmethods.
mAINTENANCE
4
•Theservicelifeofthemachinedependsonmaintenancequality.
•PRIOR TO ANY OPERATION SET THE PRESSURE SWITCH TO THE
OFF POSITION, PULL OUT THE PLUG AND COMPLETELY DRAIN THE
RESERVOIR.
•Check that all screws (in particular those of the head of the unit) are
tightlydrawnup(fig. 10).Thecheckmustbecarriedoutpriortothefirst
compressorstarting.
TABLE 1 – TIGHTENING OF HEAD TENSION RODS
Nm
Min. torque
Nm
Max. torque
Screw M6 9 11
Screw M8 22 27
Screw M10 45 55
Screw M12 76 93
Screw M14 121 148
•Clean the suction filter according to the typeofenvironmentandinany
caseatleastevery100hours.Ifnecessary,replacethefilter(aclogged
filterimpairsefficiencywhileaninefficientfiltercausesharsherwearonthe
compressor (figures 11a - 11b).
•Change the oil after the first 100 hours of operation and subsequently
every300hours.Checktheoillevelperiodically.
•Use API CC/SC SAE 40. (For cold climates, API CC/SC SAE 20 is
recommended). Never mix different grade oils. If the oil changes color
(whitish = presence of water; dark = overheated), it is good practiceto
replacetheoilimmediately.
•Aftertoppingup,tightentheplug(fig. 12)makingsurethatthereareno
leaksduringuse.Onceaweek,checktheoilleveltoassurelubricationin
time(fig. 7a).
•Periodically,checkthetensionofthebeltswhichmusthaveaflexion(f)of
around1cm(fig. 14).
*
Spent oilandcondensateMUST BE DISPOSED OFincompliancewith
protectionoftheenvironmentandcurrentlegislation.
The compressor must be disposed in conformity with the methods
provided for by local regulations
POSSIBLE FAULTS AND RELATED PERmITTED REmEDIES
5
Requesttheassistanceofaqualifiedelectricianforoperationsonelectriccomponents(cables,motor,pressureswitch,electricpanel,etc).
TABLE 2 – MAINTENANCE
FUNCTION
AFTER THE
FIRST 100
HOURS
EVERY 100
HOURS
EVERY 300
HOURS
Cleaning of intake filter and/
or substitution of filtering
element
●
Change of oil*
● ●
Tightening of head tension
rods
Thecheckmustbecarriedoutpriortothefirst
compressorstarting.
Draining tank condensate Daily
Checking the tension of
the belts
Periodically
FAULT CAUSE REMEDY
Airleakfromthevalveofthepressureswitch.
Checkvalvedoesnotperformitsfunction
correctlyduetowearordirtontheseal.
Unscrewthehex-shapedheadofthecheck
valve,cleanthehousingandthespecialrubber
disk(replaceifworn).Re-assemblerandtighten
carefully(gures 15a-15b).
Condensatedrainagecockopen. ClosetheCondensatedrainagecock.
Rilsanhosenotinsertedcorrectlyinpressure
switch.
InserttheRilsanhosecorrectlyinsidethe
pressureswitch(g. 16).
Reductionofefciency,frequentstart-up.Low
pressurevalues.
Excessivelyhighconsumption.
Decreasethedemandofcompressedair.
Leaksfromjointsand/orpipes.
Changegaskets.
Cloggingofthesuctionlter.
Clean/replacethesuctionlter
(gures 11a-11b).
Slippingofthebelt. Checkbelttension(g. 14).

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