Haier 311209J important safety instructions Ground the System

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Installation

Ground the System

The following grounding instructions are minimum requirements for a basic dispensing system. Your sys- tem may include other equipment or objects that must be grounded. Check your local electrical code for detailed grounding instructions for your area and type of equipment. Your system must be connected to a true earth ground.

Fluid hoses: use only grounded fluid hoses with a maximum of 25 feet (7.5 m) combined hose length to ensure grounding continuity. Check electrical resistance of your fluid hoses at least once a week. If your hose does not have a tag on it that specifies the maximum electrical resistance, contact the hose supplier or manufacturer for the maximum resis- tance limits. If the hose resistance exceeds the rec- ommended limits, replace it immediately.

Gun: the gun is grounded by connecting it to the properly grounded fluid hose and by a ground wire in the cable. Check ground continuity between the gun body and the heat control ground lug.

Fluid supply container: ground according to the local code.

Flammable liquids in the dispense area: must be kept in approved, grounded containers. Do not store more than the quantity needed for one shift.

All solvent pails used when flushing: ground according to local code. Use only metal pails, which are conductive. Do not place the pail on a non-con- ductive surface, such as paper or cardboard, which interrupts the grounding continuity.

To maintain grounding continuity when flushing or reliev- ing pressure: hold a metal part of the gun firmly to the side of a grounded metal pail, then trigger the gun. To reduce the risk of static sparking, ground the pump, object being dispensed to, and all other spraying/dis- pensing equipment used or located in the spraying/dis- pensing area. Check your local electrical code for detailed grounding instructions for your area and type of equipment.

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311209J

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Contents Hot Melt Dispense Guns Contents ModelsBurn Hazard Fire and Explosion Hazard Connect Electrical Cable InstallationConnect Heated Hose Adapter Hose SizeGround the System Pressure Relief Procedure Trigger LockOperation HeatupDispensing ShutdownTroubleshooting Problem Causes SolutionsService Install New Heater Cartridges, RTD Sensor, or SwitchService Valve Stem and Seal Adjust Needle AssemblyInspection Frequency 311209J Parts Models 249514 and 249512, Hot Melt GunsHandle Part No. Description QtyModels 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 Accessories DescriptionTechnical Data Graco Standard Warranty Graco Information