Graco 311511G important safety instructions Operation, Daily Start-up Procedure

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Operation

Operation

Daily Start-up Procedure

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 31.

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.

6.Switch ON main power disconnect switch.

7.Uncoil heated hose.

NOTICE

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

8.Check that hose setpoint temperature is correct.

9.Turn hose heat control switch past ON to START. Switch will illuminate.

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.

11.Turn on primary heater switch past ON to START. Ensure heater setpoint is correct. Wait for operating temperature to be reached.

To prevent excessive pressure build-up in heated hoses, always bring hoses and primary heater up to operating temperature before turning on pump switch.

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

SPRAY.

SA

SB

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13.Turn PARK/RUN switch to RUN.

14.Turn Pump Mode Function switch to ON and momentarily to START. Pumps will pressurize the fluid according to air regulator pressure.

15.Check A and B fluid pressure gauges (GA, GB) to ensure proper pressure balance between A and B. If imbalanced, bleed off the high side with valves SA and SB until balanced.

GA

GB

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Contents Reactor A-20 Related Manuals ContentsProportioner 50 ft 15 m 10 ft 3 m SystemsPart ApprovalsElectric Shock Hazard Fire and Explosion Hazard Moving Parts Hazard Key for FIG Typical Installation, without CirculationTypical Installation, with Circulation Foam Self-Ignition Moisture Sensitivity of IsocyanatesIsocyanate Hazard Keep Components a and B SeparateComponent Identification Typical InstallationKey AP Park/Run Switch Controls and IndicatorsFlushing Pressure Relief ProcedureLocate Reactor A-20 Electrical Requirements SetupDetermine Power Source Step One Connect Electrical Cord Configure to Supply PowerTerminal Blocks Power Jumper LocationGround System Iso Pump Lubrication System SetupFluid Supply Connections Air Supply ConnectionConnect FTS and Heated Dual Whip Hose Connect Heated Hose Recirculation / Pressure Relief LinesPressure Check Hose Close Gun Fluid Manifold Valves a and BConnect Whip Hose to Gun Fluid Manifold Load Fluid with Feed Pumps Fluid Temperature Sensor FTS CalibrationInitial Startup A1 A2 A3 Digital Temperature ControllersTo change or enter the set point, proceed as follows To change back to Fahrenheit units To change to Celsius unitsHose Heat Manual Mode Over Temperature AlarmsFluid Heater Temperature Offset Supply Wet-Cups with Throat Seal Liquid Spray Spraying SetupSpray Adjustments Shutdown Operation Daily Start-up ProcedureTi2414A Circulation Through Reactor Fluid CirculationCKN Circulation Through Gun ManifoldMaintenance Category Data Technical DataTechnical Data 311511G Graco Information Graco Standard Warranty
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