Graco Reactor 2 E-XP2

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Repair

Transformer Transformer

Transformer

Secondary Secondary

Secondary

Check Check

Check

SeeElectricalSchematics,page103.

1.Checkwiresandtransformer:

a.Disconnect7pingreenconnectorfromTCM.

b.Useanohmmetertotestforcontinuity

betweenterminals6and7ontheTCM7pin

greenconnector.Thereshouldbecontinuity.

Ifthereisnocontinuity,checktransformer.

c.Reconnect7pingreenconnectortoTCM

2.Checktransformer:

a.Removelowershroud.

b.Locatethetwolarger(6AWG)wires,

labeled3and4,comingoutoftransformer.

TracethesewiresbacktoTB17andTB18.

OpencircuitbreakerCB01toturnthecolor

indicatoronthecircuitbreakerGREEN.Use

anohmmetertotestforcontinuitybetween

twotransformerwiresinterminalblocks

TB17andTB18;thereshouldbecontinuity.

c.ClosethecircuitbreakerCB01.

Figure16

d.Applyincomingpowertosystem.

e.Toverifyvoltageonthesecondaryleads

ofthetransformer,measurebetweenthe

terminalsterminals3and4onTB17and

TB18.Verifyvoltageisapproximately90

VACfor240VACinput.

f.SeetheDiagnosticRunScreenonthe

ADM.TheDiagnosticRunScreendisplays

theincoming(90Vac)totheTCM“Hose

Voltage”.Thediagnosticscreenwillshowif

thecircuitbreakerhasbeentrippedforthe

incomingpowertotheTCM.

333024S

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