Encore HD Pump14Part 1605708−01  2017 Nordson CorporationProblem Possible Cause Corrective ActionPowder deliveryproblems: Surging,fading, intermittent flow,low flow (cont.)Suction tubing too long Move the hoppers closer to the pumpand shorten the suction tube length.The tube length must be less than12 ft. from the powder feed.Suction or delivery tubing blockedor kinkedCheck the tubing. Blow out the tubingor replace it as necessary.Pump panel regulator pressureincorrectAdjust the regulators in the pumppanel to the proper pressures. Referto page Delivery Check for the properpressure settings.Pump adapter 8-mm tube fittinglooseTighten the 8-mm tube fitting.Pump mount O-rings worn Replace the pump mount O-rings.Refer to your pickup tube instructionsheet or hopper manual for partnumbers.Pickup tube not tightly threadedinto pump mountTighten the pickup tube into thepump mount.Air leaking around lock knob Replace the lock knob O-ring.Pump inlet tube retaining nut orO-ring looseCheck the O-ring and tighten theretaining nut.Check the barbed tubing adapter forwear.Check for air leaks between themanifold and cabinet and betweenthe manifold and pump.Improper delivery tubingarrangementThe delivery tubing must be arrangedin a 3-ft. coil and be parallel to theground.Delivery tubing length is not tospecificationThe delivery tubing must be 60 ft.from the pump to the spray gun.Continued...

Safety

Fire Safety

Description

Pump Components

Theory of Operation

Purging

Pump Port Functions

Operation

Specifications

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Troubleshooting

Nordson Corporation

Delivery Check

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Repair

Pump Disassembly

Pump Assembly

Pinch Valve Replacement

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Nordson HD+ Product Manual

Encore HD

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Description System Components 3

Pump Panel

Pump Panel Components

HD Pump Manifold Components

Solenoid and Flow Control Valve Functions

Spray Gun Controller

Installation Manifold and Pump 9

Pump Control Board

Switches and Indicators

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Air and Powder Tubing Connections

System Diagram

Pneumatic Diagram Dual Pump/Spray Gun System

Wiring Diagram Dual Pump/Spray Gun System

Flow Control Valve Cleaning

Flow Control Valve Replacement

Dual Pump/Spray Gun System with Stand

Manifold

Air and Powder Tubing

PCA Replacement Kit

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