Graco Inc 24C933, 313872B Clean Fluid Housing Passages, Follow Pressure Relief Procedure on

Page 28

Maintenance

11.Use hex nut driver to install fluid manifold (AD). Torque fluid manifold bolt to 20-30 in-lb

(2.26-3.39 N•m). Connect air quick coupler (AC).

AK

AD

AC

TI14484a

12. Connect signal cable.

Clean Fluid Housing Passages

If necessary, use drill bits to clean the passages in the fluid housing and gun body. See Drill Bit Kits, page 51.

1.Follow Pressure Relief Procedure on page 22.

2.Remove Throat Seal Liquid cartridge.

3.Remove Throat Seal Liquid bleed port screw.

ti14478a

FIG. 22

4.Use 5/16 in. nut driver (supplied) to remove orifices (C). See FIG. 4 on page 16.

NOTICE

To prevent cross-contamination of the orifices do not interchange A component and B component parts. The A component orifice is marked with an A.

5.Remove Front End, see page 33.

6.Remove all items from front end to enable cleaning of passages. See Disassemble Front End on page 34.

7.Use appropriate drill bits to clean fluid housing pas- sages. See FIG. 23. See Drill Bit Kits, page 51.

	CA	CF
	CA
		CE
CB
		CD
		CA
	CC	TI14480a
		TI14480a
	CC
Key:
CA	Orifice Passage
CB	Throat Seal Liquid Inlet

CCFluid Inlets (on bottom of fluid housing) CD Throat Seal Liquid Pop-Off

CE Nozzle

CF Throat Seal Liquid Bleed Port

FIG. 23: Fluid Housing Passages

8.See Assemble Front End on page 34.

9.Attach Front End, see page 35.

10.Install orifices. Torque to 20-30 in-lb (2.26-3.39 N•m).

28

313872B

Image 28

Contents Important Safety Instructions EP GunContents Related Manuals Orifice Flow Area Ratio Chart ModelsFixed Orifice Flowrate Data EP Fixed Orifice Flow 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 Changing Materials Red and B Blue ComponentsPiston Safety Lock Throat Seal LiquidGrounding Trigger LockLoss of Air Pressure Hook SupportHook Support 313872B Component Identification KeyCutaway 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 Follow Pressure Relief Procedure, Optional Hose PositionPressure Relief Procedure Perform Pressure Relief Procedure on ShutdownShort Term Shutdown Long Term ShutdownMaintenance Supplied Tool KitLubrication Bleed Throat Seal Liquid CartridgeClean Outside of Gun Flush 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 Replace Mix Chamber and Front Seal Perform Replace Throat Seal Liquid Cartridge,Tools Required RepairReplace Throat Seal Liquid Cartridge Perform Bleed Throat Seal Liquid Cartridge pro- cedure, see Perform Pressure Relief Procedure, Remove Front EndDisassemble Front End Assemble Front EndAttach Front End See Attach Front End procedurePistons and Bulkhead Access Pistons Bulkhead Shaft Purge Rod Solenoid Valve 26-3.39 Nm. See Component Identification onTroubleshooting Problem Cause SolutionProblem Cause Solution Electrical Diagram Parts Model 257999 ShownOrifice, Auto Hand-Held RingOrifice, 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 Complete O-ring Placement Guide Ref PartAccessories Solvent Flush Pail Kit Solvent Flush Canister Kit248299 5.0 gal liter Pail Technical Data Models without Handle 6.4 lb 2.9 kgDimensions Ref Dimension, in. mmTechnical Data 313872B Graco Standard Warranty Graco Information