Graco A-25 important safety instructions Operation, Daily Start-up Procedure

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Operation

Operation

Daily Start-up Procedure

NOTE: The daily start-up procedures describe normal operation. Assume that all temperature and pressure settings have been previously set, but that the heating system is not up to operating temperature.

1.Check condition isocyanate lubrication system and service as required. Change pump lubricant when it shows signs of change to a milky color.

2.Ensure supply fluid is at correct temperature as recommended by chemical system supplier. Ensure individual chemicals are correctly agitated within their drums/day tanks, and moisture protection system is properly set for operation. Recirculate heated fluid back to supply drums if necessary; see page 30.

3.Turn on main air supply to transfer pumps.

4.Pressurize transfer pumps and open A- and B-inlet supply valves.

5.Open air inlet ball valve (DD).

DDti17573a

6. Turn main power ON

.

NOTICE

Uncoil heated hoses before turning on hose heater switch to prevent overheating and hot spots within hose.

7. Uncoil heated hose.

8.Check that hose setpoint temperature is correct.

9.Turn on all three heat zones.

10.The hose power controller automatically adjusts the hose current to the hose to compensate for hose length and ambient temperature. Wait for actual hose temperature readout to match hose setpoint temperature.

To prevent excessive pressure build-up in heated hoses, always bring hoses and primary heater up to operating temperature before opening air motor shutoff valve.

11.Set PRESSURE RELIEF/SPRAY valves (SA, SB) to

SPRAY.

SA

SB

ti8442a

12.Check that heat zones are on and temperatures are on target, page 22.

13.Open air motor shutoff valve.

14.Pumps will pressurize the fluid according to air regulator pressure.

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3A1569B

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Contents Operation Contents Proportioner Models SystemsRelated Manuals Proportioner Heated Hose GunElectric Shock Hazard Fire and Explosion Hazard Equipment Misuse Hazard Important Two-Component Material Information Changing Materials Typical Installation, without Circulation Typical Installation, without Circulation Key for FIGTypical Installation, with Circulation Typical Installation, with CirculationIG Typical Installation Component IdentificationMain Air Filter Filters system air supply See Tempera- ture Controls and Indicators Temperature Controls and IndicatorsControl Panel Main Power Switch Size ComponentDetermine Power Source SetupLocate Reactor A-25 Electrical Requirements Configure to Supply Power Step One Connect Electrical CordHeater Jumpers WattsTerminal Blocks Ground System Fluid Supply Connections Iso Pump Lubrication System SetupAir Supply Connection Recirculation / Pressure Relief Lines Install Fluid Temperature Sensor FTSConnect Heated Hose Fusion AP Gun shown Load Fluid with Feed Pumps Initial StartupPressure Check Hose Set Temperatures Manual current control mode onlySupply Wet-Cups with Throat Seal Liquid Spraying ClosedSpray Adjustments SB SAPressure Relief Procedure ParkShutdown Open CloseFlushing Daily Start-up Procedure OperationOpen gun fluid manifold valves a and B Fluid Circulation Circulation Through ReactorCirculation Through Gun Manifold Circulation Kit CK Part Gun ManualRun Mode DataTrak Controls and IndicatorsSetup Mode Setup Mode Run ModeSee DataTrak Diagnostic Codes DataTrak OperationMaintenance Diagnostic Codes Temperature Control Diagnostic CodesDataTrak Diagnostic Codes Symbol Code Code Name Diagnosis CauseDimensions With Wheels Without Wheels Dimension In. mmTechnical Data Category DataGraco Standard Warranty Graco Information
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