Graco 16P957, 16T311 Change Drums, Flush, Shutdown and Care of the Pump, Replace Throat Seals

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Supply System Operation

Change Drums

Excessive air pressure in the material drum could cause the drum to rupture, causing serious injury. The platen must be free to move out of the drum. Never use drum blowoff air with a damaged drum.

1.Close the air motor ball valve (BF) to stop the pump.

2.Press and hold the blowoff air button (BG) then set ram director valve (BC) to UP to raise the platen (D) until the platen (D) is completely out of drum. When the ram exits the pail, release the blowoff air button to allow the ram to rise to its full height. Use mini- mum amount of air pressure necessary to push the platen out of the drum.

3.Remove empty drum.

4.Inspect platen and, if necessary, remove any remaining material or material build-up.

5.Place full drum on ram base.

6.Lower the ram and adjust the position of the drum relative to the platen. See Start and Adjust Ram on page 11.

NOTICE

To prevent material from curing in the system, imme- diately flush the system when a pressure drop is noticed during spraying and when done spraying.

Flush

1.Remove platen from pump, then submerge pump into solvent. To clean platen, gently wipe with sol- vent. NOTE: Read notice table in Flush Before Using Equipment section, page 10.

2.Perform Start and Adjust Ram on page 11 to pres- surize the pump with solvent.

3.Hold gun firmly against a grounded pail and trigger gun into pail until clean solvent dispenses.

Shutdown and Care of the Pump

1.Set the ram director valve (BC) to DOWN.

2.Follow the Pressure Relief Procedure on page 10.

3.Follow the pump shutdown instructions in Xtreme lowers manual. See Related Manuals on page 2.

Replace Throat Seals

Remove wet cup from displacement pump while attached to the ram to replace throat seals.

1.Follow the Pressure Relief Procedure on page 10.

2.Remove Quick Coupler.

3.Remove wet cup and packing cartridge according to instructions in Xtreme lowers manual. See Related Manuals on page 2.

Remove Quick Coupler

1.Ensure displacement pump is at bottom of stroke.

2.Follow the Pressure Relief Procedure on page 10.

3.Remove clip (GC), and slide coupling cover (GB) up to remove coupling (GA).

GB

GA

GC

ti20249a

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3A2798D

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Contents Important Safety Instructions Gallon 20 liter, with cartGallon 20 liter, no cart II 2 G c T2Contents Related ManualsSkin Injection Hazard Equipment Misuse Hazard Component Identification See onKey Air Line Accessories Integrated Air ControlsIntegrated air controls include Platen Component Identification Model 16U676, 20 liter 5 gallonInstallation General Information GroundingLocation Mechanical Setup Connect Mix Line and GunAttach Drum Stops IG Ram BasePressure Relief Procedure Flush Before Using EquipmentSupply System Operation Before OperatingStart and Adjust Ram Start and Adjust PumpChange Drums FlushShutdown and Care of the Pump Replace Throat SealsBefore Beginning Repair Maintenance Procedures Platen MaintenanceAdjust Spacers Use Platen with Tapered and Straight Sided PailsRemove and Reinstall Wiper Reassemble 20 Liter Wiper AssemblyUse platen with straight sided pail Platen Assembly 411 418 412 420 419 409 414 415 406 407 402 403 405Troubleshooting RamInstall Wipers RepairDisconnect Pump from Platen Connect Platen to PumpDisconnect Displacement Pump Install Displacement PumpConnect Displacement Pump Remove Displacement PumpRemove Air Motor Install Air Motor Disconnect air hose from air motor fitting 7. SeeConnect air hose to air motor fitting 7. See Repair Parts Supply Unit RepairRam Piston Rods Disassemble Piston Rod Seal and BearingAssemble Piston Rod Seal and Bearing Disassemble Ram PistonParts Xtreme PFP, 16P957 and 16T31122 5 Part Description RAM, dual post, motor regulatorQty 1 4 4 1 2 1 1 1 1 1 1 Cart, 16P434 Part Description QtyPumpline 201 212 215 202 229 216 203 204 207 206 205Ram Frame 333 332 331 303 310 335 315 314 313320 305 321 318 326 307 308 312 324 304, 310 305 301 6 334 Ram Frame Parts Description Qty Part Description20L Platen, 16U676 411 418 412419 401 BASE, platen, 20L 402 276049 403 405Check Valve 16T481 1205 1206 1207 1204 1201Accessories Static Mixer Kit, 16T316 Static Mixer 16T316Dimensions Technical Data Maximum fluid working pressure3A2798D Graco Standard Warranty Graco Information