Graco 309909H important safety instructions Maintenance, Problem Solution

Page 9

Maintenance

Preventive Maintenance

Schedule

Establish a preventive maintenance schedule, based on the pump’s repair history.

Mix Manifold

See mix manifold manual 310654.

Maintenance

Pump Test/Meter Calibration

See ProMix Easy Operation manual. If pumps/meters fail test, see Troubleshooting, page 10.

Wet Cup

Check pump and dispense valve wet-cups daily. Keep filled with Graco Throat Seal Liquid (TSL), Part No. 206995.

Dispense Valve

Storage

 

See dispense valve manual 310655.

Before storing the pump, always flush it, see ProMix Easy Operation manual. Relieve the pressure, page 7.

Pump

See applicable pump manual 310671, 310672, or 310662.

Turbine Alternator

Replace bearings every 2000 hours. See page 19.

Icing

If you experience icing at the pump air manifold:

Reduce pump input air pressure below 80 psi (0.56 MPa, 5.6 bar), if required spray pressure allows.

Reduce moisture in compressed air supply, or use heated air.

Air Filters

If icing persists, see table below.

Check daily. Drain and clean as necessary. See page 15.

Problem

Solution

 

 

 

 

Pump slows on both up

Turn D port bleed screw 60° (1/6 turn) counter-

 

and down stroke.

clockwise, to bleed 1 cfm air to melt ice.

 

 

 

 

Pump slows on down

Turn D port bleed screw 60° (1/6 turn) counter-

U

stroke.

clockwise, to bleed 1 cfm air to melt ice. If icing

D

 

 

continues, turn screw to 90° (1/4 turn) to increase

 

 

air flow to 2 cfm. If necessary, increase air flow to

 

 

3 cfm by turning screw to 270° (3/4 turn). Do not

 

 

exceed 3 cfm (3/4 turn maximum).

 

 

 

 

Pump slows on up stroke.

Turn U port bleed screw 90° (1/4 turn) counter-

 

 

clockwise, to bleed 1 cfm air to melt ice. If icing

 

 

continues, turn screw to 120° (1/3 turn) to

 

 

increase air flow to 2 cfm. If necessary, increase

 

 

air flow to 3 cfm by turning screw to 180° (1/2

TI5294a

 

turn). Do not exceed 3 cfm (1/2 turn maximum).

 

 

 

 

 

309909H

9

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Contents Important Safety Instructions Repair PartsManual Conventions ContentsSeries Description Psi MPa, bar Approvals ProMix Easy ModelsComponent Manuals in English Description Related ManualsFire and Explosion Hazard Equipment Misuse Hazard Fluid Manifold to Gun Pressure Relief ProcedurePump to Fluid Manifold Problem Solution MaintenanceProblem Cause Solution TroubleshootingCircuit. See Electrical Schematic, Relieve pressure. Install larger tip. Follow Startup Errors Operating ErrorsCode Testing Error Code Alarm Active Problem CauseReplacing Air Filter Element RepairRemoval Software UpgradesReplacing Main Circuit Board Replacing Display Circuit Board Alternator Repair Pneumatic ControlReplacing Alarm Replacing SolenoidsReplacing Alternator Regulator Follow Pressure Relief Procedure, Dispense Valve/Mix Manifold AssemblySchematic Pump Solenoid Expansion Board Schematic Main Control Board SchematicMain Control Board LEDs PinPart No Series A, Pump-based, Cart-mounted Air Spray Unit Parts78 Ref Cable ConnectionsNo. Part No. Description Pump and Meter-based, Wall-mounted Air Spray Units Pump Solenoid Cable Connections Description Qty See page 27 for model numbers and descriptionsPump-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 Muffler See page 40 for model numbers and descriptionsCheck Valve Side Tube Connections, Low Pressure PumpsP2P1 Tube Connections, High Pressure PumpsC1G1 P2 M1 Tube Connections, MetersPneumatic Schematic Part No. Description Qty Intrinsically Safe Pneumatic ControlSolenoid Module 306 Detail Alternator Module 304 DetailNon-intrinsically Safe Pneumatic Control 307 Display User InterfaceNo. Part No. Description Qty Pump Air Control Meter Air ControlTechnical Data Technical Data Graco Information Graco Standard Warranty