Wagner SprayTech 770 owner manual Fix Spraying Problems, Troubleshooting

Page 22

Troubleshooting

Fix Spraying Problems

Before servicing, always release system pressure by following Pressure Relief Procedure (page 7).

Problem A: The sprayer does not start

 

Cause

Solution

 

 

 

1.

Sprayer is not plugged in

Plug sprayer in

 

 

 

2.

ON/OFF switch is set to OFF

Turn ON/OFF switch to ON

 

 

 

3.

The sprayer shuts off while under pressure

Motor will cycle ON and OFF while spraying to regulate pressure. This is normal

 

 

 

4.

No voltage is coming from wall plug

Test the power supply voltage

 

 

 

5.

The extension cord is damaged or has too low a capacity

Replace extension cord

 

 

 

6.

There is a problem with sprayer motor

Take sprayer to Wagner Authorized Service Center

 

 

 

Problem B: The sprayer starts but does not draw material when the PRIME/SPRAY knob is set to PRIME

 

Cause

Solution

 

1.

The sprayer will not prime properly or has lost prime

Refer to Getting Material to Flow section see page 9

 

2.

The hopper is empty

Refer to Load Material and Getting Material to Flow sections see pages 8-9

3.

The sprayer is not on level ground

Relocate sprayer to level ground

 

 

 

 

 

4.

The inlet filter is clogged

Refer to Clean the Inlet Filter see page 14

 

5.

The inlet valve is stuck

Inlet may be stuck from old material. Push filter tab to release. If still stuck refer to Clean

 

 

the Inlet Filter see page 14 or Replace the Inlet Valve see page 24

*

6.

The outlet valve is stuck

Refer to Replacing Outlet Valve see page 24

 

7.

The inlet valve is worn or damaged

Refer to Cleaning or Replacing Inlet Valve see page 24 *

 

8.

The PRIME/SPRAY valve is plugged

Take sprayer to Wagner Authorized Service Center

 

 

 

 

 

Problem C: The sprayer draws up material but the pressure drops when the gun is triggered

 

Cause

Solution

1.

The spray tip is worn

Replace spray tip with a new one**

 

 

 

2.

The inlet filter is clogged

Refer to Clean the Inlet Filter see page 14

3.

The spray tip is plugged

Refer to Clear the Spray Tip see page 13

4.

The spray gun filter is clogged

Refer Clean the Spray Gun Filter see page 15. Keep extra filters on hand

5.

The material is too heavy or coarse

Thin or strain the material

 

 

 

6.

The outlet valve assembly is dirty or worn

Refer to Replacing Outlet Valve see page 24 *

7.

The inlet valve assembly is damaged or worn

Refer to Clean or Replace Inlet Valve see page 24 *

22

Troubleshooting • Fixing Spraying Problems

 

English

 

 

 

Image 22
Contents Contents Important Safety Information Before You StartBefore You Start What’s in the Box? Questions?Assemble Your Wagner Paint Crew Tighten ThreadUsing the Wagner Paint Crew Proper Use FunctionsPressure Relief Procedure Using the Wagner Paint Crew Important Safety WarningLoad Material PushWhat you’ll need Special NoteTip Hold the Spray Gun LevelSpray Pattern Spray TechniqueOverlap Your Strokes Spray Tip Solutions if Experiencing Spray IssuesKeep material flowing smoothly while spraying Inlet FilterClear Spray Tip Handle CleanFilter ReplaceTips if Experiencing Spray Issues Clean Spray GunPull Storage Mineral or Cleanup and StorageInstructions are for latex material only Startup from Short Term Storage Flush Material From Sprayer Inlet Filter MinutesComponents OILStorage Long TermOIL Fix Spraying Problems TroubleshootingProblem E The spray gun leaks Inlet Valve RemoveParts List Liste de pièces Lista de piezas QuantityLimited Warranty for Your Paint Crew Warranty Garantie Garantía