Graco A-25 important safety instructions Contents

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Contents

Proportioner Models . . . . . . . . . . . . . . . . . . . . . . . . 3

Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Important Two-Component Material Information . 7

Isocyanate Conditions . . . . . . . . . . . . . . . . . . . . . 7 Material Self-ignition . . . . . . . . . . . . . . . . . . . . . . 7 Keep Components A and B Separate . . . . . . . . . 7 Moisture Sensitivity of Isocyanates . . . . . . . . . . . 7 Foam Resins with 245 fa Blowing Agents . . . . . . 7 Changing Materials . . . . . . . . . . . . . . . . . . . . . . . 8 DataTrak Diagnostic Codes . . . . . . . . . . . . . . . . . 9 Temperature Control Diagnostic Codes . . . . . . . 9 E01: High fluid temperature . . . . . . . . . . . . . . . 10

E02: High zone current . . . . . . . . . . . . . . . . . . . 11

E03: No zone current . . . . . . . . . . . . . . . . . . . . 11

E04: Fluid Temperature Sensor (FTS) or thermocouple disconnected . . . . . . . . . . . . 11

E05: Control board over temperature . . . . . . . . 12

E06: Communication cable unplugged . . . . . . . 12 Communication Diagnostic Codes . . . . . . . . . . 12 E30: Momentary loss of communication . . . . . . 12

E99: Loss of communication . . . . . . . . . . . . . . . 12

Before Beginning Repair . . . . . . . . . . . . . . . . . . . 13

Pressure Relief Procedure . . . . . . . . . . . . . . . . . . 13

Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Park . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Pumps and Pressures . . . . . . . . . . . . . . . . . . . . 15

Electronics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Hose Heat System . . . . . . . . . . . . . . . . . . . . . . 20

Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Disconnect Pump . . . . . . . . . . . . . . . . . . . . . . . 22 Connect Pump . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Remove Air Motor . . . . . . . . . . . . . . . . . . . . . . . 24 Install Air Motor . . . . . . . . . . . . . . . . . . . . . . . . . 24 Recirculation / Over Pressure Relief Block . . . . 25 Air Inlet Filter / Water Separator (Auto Drain) . . 25 Temperature Control Module . . . . . . . . . . . . . . . 26 Primary Heater . . . . . . . . . . . . . . . . . . . . . . . . . 28 Heated Hose . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Fluid Temperature Sensor (FTS) . . . . . . . . . . . . 32 Pump Lubrication System . . . . . . . . . . . . . . . . . 35 Fluid Inlet Strainer Screen . . . . . . . . . . . . . . . . . 36 Temperature Display . . . . . . . . . . . . . . . . . . . . . 36 Replace DataTrak Battery or Fuse . . . . . . . . . . 38

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Recommended Spare Parts . . . . . . . . . . . . . . . . . 39

Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Control Panel, 262575 . . . . . . . . . . . . . . . . . . . . 44 Temperature Control . . . . . . . . . . . . . . . . . . . . . 45 Wheel Kit, 262695 . . . . . . . . . . . . . . . . . . . . . . . 45 Fluid Manifold . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Fluid Inlet Kit, 262695 . . . . . . . . . . . . . . . . . . . . 46 6 kw Dual Zone Heater, 24J788 . . . . . . . . . . . . 47 A-25 Air Motor Pump Assembly, 262573 . . . . . . 48 Air Tubing Connections . . . . . . . . . . . . . . . . . . . 49 Breaker Module, 262576 . . . . . . . . . . . . . . . . . . 50

Reactor A-25 Wiring Schematic . . . . . . . . . . . . . . 51

Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 56

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Contents Important Safety Instructions Repair-PartsContents Related Manuals Proportioner ModelsSystems Manual DescriptionElectric Shock Hazard Fire and Explosion Hazard Equipment Misuse Hazard Important Two-Component Material Information Changing Materials Symbol Code Code Name Diagnosis Cause DataTrak Diagnostic CodesTemperature Control Diagnostic Codes Sensor Connector Continuity Checks Pins Description Reading E01 High fluid temperatureCauses of E01 Errors ChecksE02 High zone current E03 No zone currentE99 Loss of communication E05 Control board over temperatureE06 Communication cable unplugged Pressure Relief ProcedureShutdown Before Beginning RepairParkFlushing Open ClosePower TroubleshootingProblems Pumps and PressuresProblem Cause Solution Problem Cause Solution ElectronicsProblem Cause Solution Sor FTS or thermocouple discon See E04 Fluid Temperature SenHeater Hose Heat System Problem Cause Solution Disconnect Pump Follow Pressure Relief Procedure,Repair Connect Pump Install Air Motor Remove Air MotorAir Inlet Filter / Water Separator Auto Drain Air Filter Element InstallationRecirculation / Over Pressure Relief Block Air Filter Element RemovalConnector Description Temperature Control ModuleTemperature Control Module Connections Bottom of Power ModulesReplacing Temperature Control Assembly Modules Test SCR CircuitLine Voltage Primary HeaterHeater Element KW Dual Zone Heater Thermocouple ThermocouplePins Result Overtemperature SwitchCheck Hose Connectors Heated HoseTest/Removal Fluid Temperature Sensor FTSInstallation Model Secondary Voltage Transformer Primary CheckTransformer Secondary Check Replace Transformer Replace Circuit Breaker Module Size ComponentPump Lubrication System Pump Lubrication SystemFluid Inlet Strainer Screen Temperature DisplayRefer to Reactor A-25 Wiring Schematic, Detail of Membrane Switches and Temperature Display Board Display ModuleReplace Fuse Replace DataTrak Battery or FuseReplace Battery Accessories Recommended Spare PartsParts 7984 100 888Torque pump locking nuts to 66-74 ft-lbs 90-100 Nm Part Description Qty CartNipple Control Panel ScrewRef. Part Description Qty Temperature ControlWheel Kit Fluid Manifold Fluid Inlet KitKw Dual Zone Heater, 24J788 RingAir Motor Pump Assembly PLUG, PipeColor Diameter Air Tubing ConnectionsLength Connection Outside Ft m From Breaker Module Reactor A-25 Wiring Schematic PhasePOD Reactor A-25 Wiring Schematic Simplified Schematic, Heater Controls Technical Data Category DataGraco Standard Warranty Graco Information
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