Haier 311209J important safety instructions Dispensing, Shutdown

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Dispensing

1.Start pump. Fluid flow rate is controlled at pump. Adjust pump pressure to obtain desired flow rate. Use lowest pressure necessary to dispense fluid.

The pressure adjustment depends on hose length, fluid viscosity, and nozzle size.

2.Disengage gun trigger lock.

Trigger Lock

Disengaged

TI8050

FIG. 10: Trigger Lock Disengaged

3.Squeeze trigger in all the way. Fluid flow begins with the slightest pressure on trigger and stops when trigger is released.

Operation

Shutdown

1.Turn off all heat at controller.

2.Shut off fluid supply pump.

3.Trigger gun to relieve pressure while system is still hot.

4.With gun over a waste container, hold trigger open by securing with trigger retainer (Z).

Z

TI8051b

TI8051

FIG. 11: Trigger Retainer Locked

311209J

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Contents Hot Melt Dispense Guns Models ContentsBurn Hazard Fire and Explosion Hazard Connect Heated Hose InstallationConnect Electrical Cable Adapter Hose SizeGround the System Trigger Lock Pressure Relief ProcedureHeatup OperationShutdown DispensingProblem Causes Solutions TroubleshootingInstall New Heater Cartridges, RTD Sensor, or Switch ServiceService Valve Stem and Seal Adjust Needle AssemblyInspection Frequency 311209J Models 249514 and 249512, Hot Melt Guns PartsPart No. Description Qty HandleModels 249515 and 249513, Hot Melt Guns Models 249515 and 249513, Hot Melt Guns54‡ 102273 SCREW, 6-32 x 55‡ SCREW, 4-40 x Models 297274 and 297273, Hot Melt Guns Models 297274 and 297273, Hot Melt Guns15G019 SPACER, cover mounting 112699 Description AccessoriesTechnical Data Graco Information Graco Standard Warranty