Graco A-25 Before Beginning Repair, Pressure Relief ProcedureShutdown

Page 13

Before Beginning Repair

Before Beginning Repair

Repairing this equipment requires access to parts that may cause electric shock or other serious injury if work is not performed properly. Electrical troubleshooting must be done by a qualified electrician. Be sure to shut off all power to equipment and lock out power at the source before repairing.

1. Flush if necessary. See Flushing, page 14.

5. Close gun fluid inlet valves A and B.

ti2421a

6. Close pump inlet supply valves.

2. Turn main heater power OFF

.

3. Relieve pressure. See Pressure Relief Procedure.

ti17716a

Pressure Relief

ProcedureShutdown

The Fusion AP gun is shown.

1.Turn off feed pumps and agitator if used.

2.Park component A pump. Follow Park; see page 14.

3.Close the air inlet valve.

4.Engage gun piston safety lock.

ti2409a

1. Turn main heater power OFF

.

2.Follow Park.

3.Check and fill wet-cups (AK, Z).

AK

Z

ti16974a

4. Follow gun shutdown procedure. See gun manual.

3A1570A

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Contents Repair-Parts Important Safety InstructionsContents Systems Proportioner ModelsRelated Manuals Manual DescriptionElectric Shock Hazard Fire and Explosion Hazard Equipment Misuse Hazard Important Two-Component Material Information Changing Materials Temperature Control Diagnostic Codes DataTrak Diagnostic CodesSymbol Code Code Name Diagnosis Cause Causes of E01 Errors E01 High fluid temperatureSensor Connector Continuity Checks Pins Description Reading ChecksE03 No zone current E02 High zone currentE06 Communication cable unplugged E05 Control board over temperatureE99 Loss of communication Before Beginning Repair Pressure Relief ProcedureShutdownOpen Close ParkFlushingProblems TroubleshootingPower Pumps and PressuresProblem Cause Solution Electronics Problem Cause SolutionProblem Cause Solution Heater See E04 Fluid Temperature SenSor FTS or thermocouple discon Hose Heat System Problem Cause Solution Repair Follow Pressure Relief Procedure,Disconnect Pump Connect Pump Remove Air Motor Install Air MotorRecirculation / Over Pressure Relief Block Air Filter Element InstallationAir Inlet Filter / Water Separator Auto Drain Air Filter Element RemovalTemperature Control Module Connections Temperature Control ModuleConnector Description Bottom of Power ModulesTest SCR Circuit Replacing Temperature Control Assembly ModulesHeater Element Primary HeaterLine Voltage KW Dual Zone Heater Thermocouple ThermocoupleCheck Hose Connectors Overtemperature SwitchPins Result Heated HoseInstallation Fluid Temperature Sensor FTSTest/Removal Transformer Secondary Check Replace Transformer Transformer Primary CheckModel Secondary Voltage Size Component Replace Circuit Breaker ModulePump Lubrication System Pump Lubrication SystemRefer to Reactor A-25 Wiring Schematic, Temperature DisplayFluid Inlet Strainer Screen Display Module Detail of Membrane Switches and Temperature Display BoardReplace Battery Replace DataTrak Battery or FuseReplace Fuse Recommended Spare Parts Accessories7984 100 888 PartsTorque pump locking nuts to 66-74 ft-lbs 90-100 Nm Cart Part Description QtyNipple Screw Control PanelWheel Kit Temperature ControlRef. Part Description Qty Fluid Inlet Kit Fluid ManifoldRing Kw Dual Zone Heater, 24J788PLUG, Pipe Air Motor Pump AssemblyLength Connection Outside Ft m From Air Tubing ConnectionsColor Diameter Breaker Module Phase Reactor A-25 Wiring SchematicPOD Reactor A-25 Wiring Schematic Simplified Schematic, Heater Controls Category Data Technical DataGraco Information Graco Standard Warranty

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