Graco ti18526c, ti18524d, ti18496b Spray pattern Mendations Fluid is too thin or too thick

Page 41

 

 

Troubleshooting

 

 

 

Problem

Cause

Solution

 

 

 

 

 

 

Output low on both

Air line restricted or air supply inadequate. Valves

Clear air line; increase air supply. Check that

strokes.

closed or clogged.

valves are open.

 

 

 

 

Fluid hose/gun obstructed.

Clear hose or gun*.

 

 

 

 

Air motor icing.

See air motor manual for instructions.

 

 

 

 

Exhausted fluid supply.

Refill and prime pump.

 

 

 

 

Worn piston packings.

Replace.

 

 

 

 

Open or worn intake valve.

Clear or service intake valve.

 

 

 

Pump output low on

Held open or worn ball check valves.

Check and repair.

only one stroke.

 

 

Worn piston packings.

Replace.

 

 

 

 

No output.

Improperly installed ball check valves.

Check and repair.

 

 

 

Pump operates errati-

Exhausted fluid supply.

Refill and reprime pump.

cally.

 

 

Held open or worn ball check valves.

Check and repair.

 

 

 

 

 

Worn piston packing.

Replace.

 

 

 

 

Suction tube too restrictive, causing pump to cavi-

Use larger diameter tube

 

tate

 

 

 

 

Erratic accelerated

Fluid supply exhausted, clogged suction.

Refill supply and prime pump. Clean suction tube.

speed.

 

 

High viscosity fluid.

Reduce viscosity; increase fluid temperature,

 

 

 

reduce flow rate by using smaller tip.

 

 

 

 

Open or worn piston valve or seal.

Clear piston valve; replace seal.

 

 

 

 

Open or worn intake valve.

Clear or service intake valve.

 

 

 

Runs sluggishly.

Possible icing.

See air motor manual for instructions.

 

 

 

 

Filler material clumping causing extra friction on

Flush pump and replace packings.

 

rods and seals.

 

 

 

 

Cycles or fails to hold

Worn check valves or seals.

Service lower. See lower manual for instructions.

pressure at stall.

 

 

 

 

 

Air bubbles in fluid.

Loose suction line.

Tighten. Use compatible liquid thread sealant or

 

 

PTFE tape on connections.

 

 

 

Poor finish or irregular

Incorrect fluid pressure at gun.

See gun manual; read fluid manufacturer’s recom-

spray pattern.

 

mendations.

 

 

 

 

Fluid is too thin or too thick.

Adjust fluid viscosity; read fluid manufacturer’s rec-

 

 

ommendations.

 

 

 

 

Dirty, worn, or damaged spray gun.

Service spray gun. See spray gun manual.

 

 

 

Difficulty priming

Inlet ball stuck to seat

Tap pump with hammer to dislodge.

 

 

 

 

 

Remove inlet ball, flush dried material, re-install

 

 

inlet ball.

 

 

 

 

Suction hose/strainer too restrictive or clogged

Clean inlet strainer, shorten hose length and/or

 

 

increase hose diameter (especially cold or viscous

 

 

material.

 

 

 

*To determine if fluid hose or gun is obstructed, follow Pressure Relief Procedure and Shutdown, page 24. Dis- connect fluid hose and place a container at pump fluid outlet to catch any fluid. Turn on air power just enough to start pump. If pump starts, the obstruction is in fluid hose or gun.

**The runaway solenoid can still be actuated if the Runaway Error is not displayed. Also, disabling the runaway monitor will not retract the solenoid.

3A2012J

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Contents FRP Proportioner Important Safety InstructionsContents Manual Description Related ManualsAgency Approvals No Cart Cart, Mast, and Boom ModelsHose Length RatioAccessories Skin Injection Hazard Toxic Fluid or Fumes Hazard 3A2012J Material Self-ignition Important Two-Component Material InformationChanging Materials Keep Resin and Catalyst Components SeparateTypical Applications OverviewKey Component IdentificationAir Control Panel Pressure relief/recirculation valve P relieves pres Air Motor and Resin Displacement PumpPressure relief/recirculation fluid outlet P1 place Pressurized fluid outlet on filter R connect fluidCatalyst Pump Components Catalyst PumpSolvent Flush Asme and CE-Approved Pressure Pot Solvent Flush SystemsSolvent Flush Diaphragm Pump Before Installation SetupLocation Requirements System Mounting Wall Mount Systems OnlyFor systems bolting directly to wall not using a pole For cart and boom systems only, install legs System AssemblySpring Chain Roving Guides Deflector Plates Grounding Ground WireAir Connections Connect Fluid and Air LinesCatalyst Pump Pressure Relief Valve Fill Supply Tanks Flush Before First UseSolvent Flush Connections if applicable Gun ConnectionsOperation Pressure Relief Procedure and ShutdownTrigger Lock Boom OperationOperation For internal mix proportioners only, check solvent line StartupPrime Follow Pressure Relief Procedure and Shut- down onOperation 3A2012J Flush External mix systems 30-40 psi 0.21-0.28 MPa, 2.1-2.8 bar SprayFollow Pressure Relief Procedure and Shutdown on AAC Air AdjustmentDataTrak Operation Run ModeSetup Mode Operation Solenoid Release Button Runaway MonitorPrime/Flush DiagnosticsCounter/Totalizer DisplayDiagnostic Codes Symbol Code Name Diagnosis Cause Disconnect DataTrak Replace DataTrak Battery or FuseTask Schedule Inspect pump wetcup Daily MaintenanceComponents Resin Pump TroubleshootingSpray pattern Mendations Fluid is too thin or too thick General Information Disconnect the Displacement PumpRepair Align cylinder and adapter plate Reconnect the Displacement PumpReconnect the Air Motor Disconnect the Air MotorTi18456c Replace Pumpline Remove Catalyst Pump from System Repair Catalyst PumpDisassemble Catalyst Pump Repair Throat and Piston SealsAssemble Catalyst Pump Repair Foot ValveCatalyst Pump Details Systems System Parts152 24M692 SPACER, ball joint Wall or Pole Mount KIT Wall or Pole Mount KIT Wall or Pole Mount KIT Quantity CartsSystem Parts Part Description Qty Wall or Pole Mount Kit, 16N918Boom, 16N761 Air Panel Slave Pump Linkage, 16P125 Part Description 131 171 Resin PumplinesAir Motor and Pump for Resin Pumpline Connecting KitGun Coupling CollarsMesh Pack Resin Filter24F620 16M736 Resin Supply Hose3A2012J 922 930 940 Catalyst Slave PumpsCatalyst Pumps Installation Tools not shown16P425 Catalyst ReservoirCart not included in kit, shown for reference only Hose Bundles Quantity 16N0169, 16N017, 16N018, and 16N019 Kits Accessory Parts Heater Kits16N014 and 16N015 Kits Nipple Asme Pressure Pots, 2-gallon 16M893 and 5-gallon 16M894 Solvent Pressure Pot KitsTube Asme and CE-Approved Pressure Pots, 16M874 and 16M875Gallon 16M560 and 5-gallon 16M561 Solvent Diaphragm Pumps16M881 DataTrak Upgrade KitCarts for 55 Gallon Barrel, 16M896 16M961 Roving Box BracketGel Hose Extension HosesChop Hose For external gelTop View DimensionsCart and Boom Wall/Pole Mount Cart OnlyPumpline Wall Mounting Bracket Dimensions Technical DataPumpline Technical Data 3A2012J Graco Information Graco Standard Warranty
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