Graco 309909H important safety instructions Relieve pressure. Install larger tip. Follow

Page 12

Troubleshooting

Problem

Cause

 

Solution

 

 

 

 

 

 

 

 

Flow rate too low.

Inadequate air supply.

 

Use larger CFM compressor.

 

 

 

 

 

 

Air pressure to pumps too low.

 

Increase pressure.

 

 

 

 

 

 

 

Fluid A or B filters plugged.

 

Clean filters.

 

 

 

 

 

 

Spray tip too small.

 

Relieve pressure. Install larger tip. Follow

 

 

 

gun manual instructions.

 

 

 

 

 

Mixer or hoses partially plugged or too

Inspect parts for cured material. Clean or

 

restrictive.

 

replace, or use larger hoses and mixer.

 

 

 

 

 

Insufficient dispense valve travel.

 

Increase travel. See 310655.

 

 

 

 

 

Shutoff valves are not fully open.

 

Ensure that shutoff valves are fully open

 

 

 

and sampling valves are closed.

 

 

 

 

 

Pump stops after 12 cycles.

Knob is set to Run pump A

or B

Turn knob to spray

if spraying mate-

rial.

 

 

 

 

 

 

independently.

 

 

 

 

 

 

 

 

Pump cycle rate slows and eventually

Icing at pump air manifold.

 

See Icing, page 9.

 

stops.

 

 

 

 

 

 

 

 

 

12

309909H

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Contents Repair Parts Important Safety InstructionsContents Manual ConventionsProMix Easy Models Series Description Psi MPa, bar ApprovalsRelated Manuals Component Manuals in English DescriptionFire and Explosion Hazard Equipment Misuse Hazard Pressure Relief Procedure Fluid Manifold to GunPump to Fluid Manifold Maintenance Problem SolutionTroubleshooting Problem Cause SolutionCircuit. See Electrical Schematic, Relieve pressure. Install larger tip. Follow Startup Errors Operating ErrorsCode Code Alarm Active Problem Cause Testing ErrorRepair Replacing Air Filter ElementSoftware Upgrades RemovalReplacing Main Circuit Board Replacing Display Circuit Board Pneumatic Control Alternator RepairReplacing Alarm Replacing SolenoidsReplacing Alternator Regulator Dispense Valve/Mix Manifold Assembly Follow Pressure Relief Procedure,Schematic Main Control Board Schematic Pump Solenoid Expansion Board SchematicMain Control Board LEDs PinParts Part No Series A, Pump-based, Cart-mounted Air Spray UnitCable Connections 78 RefNo. Part No. Description Pump and Meter-based, Wall-mounted Air Spray Units Pump Solenoid Cable Connections See page 27 for model numbers and descriptions Description QtyPump-based, Wall-mounted Air Spray Units 494025 24 Ref See page 30 for model numbers and descriptions Meter-based, Wall-mounted High Pressure Units 65 Ref 4025 24 Ref See page 33 for model numbers and descriptions Pump-based, Wall-mounted High Pressure Units Muffler See page 36 for model numbers and descriptions Ft 5.2 ft Pump and Meter-based, Wall-mounted High Pressure Units TI4908a See page 40 for model numbers and descriptions MufflerCheck Valve Tube Connections, Low Pressure Pumps SideTube Connections, High Pressure Pumps P2P1Tube Connections, Meters C1G1 P2 M1Pneumatic Schematic Intrinsically Safe Pneumatic Control Part No. Description QtyAlternator Module 304 Detail Solenoid Module 306 DetailNon-intrinsically Safe Pneumatic Control 307 User Interface DisplayPump Air Control Meter Air Control No. Part No. Description QtyTechnical Data Technical Data Graco Standard Warranty Graco Information
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