Graco Inc 257999, 313872B, 24C934 Repair, Tools Required, Replace Throat Seal Liquid Cartridge

Page 31

Repair

Repair

Tools Required

Tools required to complete some gun repair procedures:

•15/16 in. wrench

•flat head screwdriver (supplied)

•5/16 hex nut driver (supplied)

•1/2 in. socket

•3/4 in. socket

•5/64 in. allen wrench (supplied)

•9/64 in. allen wrench

•5/32 in. allen wrench

•Phillips screwdriver

Lubrication

See Accessories on page 53 to order lubricant. Liber- ally lubricate all o-rings, seals, and threads.

NOTICE

Use only Throat Seal Liquid on the o-rings, seals, and threads of the Throat Seal Liquid cartridge. Fusion grease or other petroleum-based or vegeta- ble-based lubricants will cause cartridge o-rings and seals to swell and stick.

Replace Throat Seal Liquid Cartridge

NOTE: If Throat Seal Liquid cartridge removal or instal- lation is difficult, lubricate cartridge o-rings and cartridge bore with a few drops of Throat Seal Liquid.

Water-based lubricants can be used as well.

NOTICE

Use only Throat Seal Liquid on the o-rings, seals, and threads of the Throat Seal Liquid cartridge. Fusion grease or other petroleum-based or vegeta- ble-based lubricants will cause cartridge o-rings and seals to swell and stick.

1.Follow Pressure Relief Procedure, page 22.

2. Close air valve (AB).

AB

TI14452a

FIG. 25

3.Push in and rotate cartridge 1/4 turn counterclock- wise. See FIG. 26. Pull cartridge out of gun body.

TI14461a

FIG. 26

313872B

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Image 31

Contents EP Gun Important Safety InstructionsContents Related Manuals Models Orifice Flow Area Ratio ChartEP Fixed Orifice Flow Data Fixed Orifice Flowrate DataOrifice Diameter Variable Orifice Flowrate DataFlowrate gpm Variable Orifice Flowrate Data 1500 PSI Variable Orifice Flowrate Data 2000 PSI Toxic Fluid or Fumes Hazard Fire and Explosion Hazard Important Two-Component Material Information Red and B Blue Components Changing MaterialsTrigger Lock Piston Safety LockThroat Seal Liquid GroundingHook Support Loss of Air PressureHook Support 313872B Key Component IdentificationCutaway View Gun Triggered Fluid Pouring Theory of OperationGun Detriggered Setup Perform Bleed Throat Seal Liquid Cartridge pro- cedure. See Adjust OrificesOrder to increase the pressure, turn the needle clockwise Optional Hose Position Follow Pressure Relief Procedure,Pressure Relief Procedure Long Term Shutdown Perform Pressure Relief Procedure onShutdown Short Term ShutdownBleed Throat Seal Liquid Cartridge MaintenanceSupplied Tool Kit LubricationFlush Gun Clean Outside of GunClean Fluid Manifold Clean Breather PlugFollow Pressure Relief Procedure Clean Check Valves Follow Pressure Relief Procedure on Clean Fluid Housing PassagesRemove Front End, see Clean Orifice Perform Replace Throat Seal Liquid Cartridge, Replace Mix Chamber and Front SealTools Required RepairReplace Throat Seal Liquid Cartridge Perform Bleed Throat Seal Liquid Cartridge pro- cedure, see Remove Front End Perform Pressure Relief Procedure,Assemble Front End Disassemble Front EndAttach Front End See Attach Front End procedurePistons and Bulkhead Access Pistons Bulkhead Shaft Purge Rod 26-3.39 Nm. See Component Identification on Solenoid ValveProblem Cause Solution TroubleshootingProblem Cause Solution Electrical Diagram Model 257999 Shown PartsRing Orifice, Auto Hand-HeldOrifice, Auto Hand-Held See Orifice KitsKits on Orifice 24C751 Orifice Housing 24C756 Ring 24C805 24C815 Kits Kits Located inside back cap Impingement Kit Type and Kit Number Orifice KitsModel Iso Model Polyol Orifice Kit Kit Drill Bit Qty Orifice Size Number Drill Bit KitsKit Illustration Ref Part Complete O-ring Placement GuideAccessories Solvent Flush Pail Kit Solvent Flush Canister Kit248299 5.0 gal liter Pail Models without Handle 6.4 lb 2.9 kg Technical DataRef Dimension, in. mm DimensionsTechnical Data 313872B Graco Information Graco Standard Warranty