Graco 312794E Preventive Maintenance Schedule, Tighten Threaded Connections, Flush the Pump

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Maintenance

Preventive Maintenance

Schedule

The operating conditions of your particular system determine how often maintenance is required. Establish a preventive maintenance schedule by recording when and what kind of maintenance is needed, and then determine a regular schedule for checking your system.

Tighten Threaded Connections

Before each use, check all hoses for wear or damage. Replace as necessary. Check that all threaded connec- tions are tight and leak-free.

Flush the Pump

Read all Warnings. Follow all Grounding instructions. See page 8.

Flush the pump:

Before first use

When changing colors or fluids

Before repairing equipment

Before fluid dries or settles out in a dormant pump (check the pot life of catalyzed fluids)

At the end of the day

Before storing the pump.

Flush at the lowest pressure possible. Flush with a fluid that is compatible with the fluid you are pumping and with the wetted parts in your system. Check with your fluid manufacturer or supplier for recommended flushing fluids and flushing frequency.

1.Follow Pressure Relief Procedure, page 11.

2.Remove tip guard and spray tip from gun. Refer to separate gun manual.

Maintenance

3.Place siphon tube in grounded metal pail containing cleaning fluid.

4.Set pump to lowest possible fluid pressure, and start pump.

5.Hold a metal part of the gun firmly to a grounded metal pail.

6.Units with runaway protection only: enable the prime/flush function by pushing the prime/flush but- ton on the DataTrak.

7.Trigger gun. Flush system until clear solvent flows from gun.

8.Units with runaway protection only: disable the prime/flush function by pushing the prime/flush but- ton on the DataTrak.

9.Follow Pressure Relief Procedure, page 11.

10.Clean the tip guard, spray tip, and fluid filter element separately, then reinstall them.

11.Clean inside and outside of suction tube.

Wet Cup

Fill the wet cup one-half full with Graco Throat Seal Liq- uid (TSL). Maintain level daily.

312794E

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Contents Ll 2 G Merkur Pump AssemblyContents Wet cup Ratio Pump Part Number MatrixData Monitoring/Exhaust Pump Models Fire and Explosion Hazard Manual Description Related ManualsComponent Identification Key Component IdentificationGeneral Information InstallationPrepare the Operator Prepare the Site GroundingMount the Pump AccessoriesAir and Fluid Hoses G15 Spray Gun Shown with Supply Hose Typical InstallationFlush Before Using Equipment Pressure Relief ProcedureOperation Wet CupShutdown and Care of the Pump Prime and Adjust the PumpPreventive Maintenance Schedule MaintenanceFollow Pressure Relief Procedure, Tighten Threaded ConnectionsProblem Cause Solution TroubleshootingRepair Disconnect the Displacement PumpDisplacement Pump Torque LW025A Reconnect the Displacement PumpLW050A-LW150A Reconnect the Air Motor Disconnect the Air MotorMotor Torque All Other SizesPump Parts Qty Parts That Vary by ModelDescription Repair Kits For displacement pump repair kits, see manualModel W10xxx Performance ChartsModel W15Axx Model W15Fxx Model W15BxxFlow Model W23xxx Model W18xxxModel W28xxx Model W24xxxModel W30Cxx Model W30AxxBar Model W45xxx Model W36xxxRatio, 75 cc/cycle Model W48xxxPump Model Weight Pump DimensionsTechnical Data Wall Bracket Mounting DimensionsGraco Information Graco Standard Warranty