Graco Inc 24C933, 313872B, 257999, 24C934, 24C932, TI14450a Disassemble Front End, Assemble Front End

Page 34

Repair

Disassemble Front End

NOTICE

To prevent cross-contamination of the equipment’s wet- ted parts, never interchange component A (isocyanate) and component B (resin) parts. The gun is shipped with the A side on the left. The fluid manifold, fluid housing, side seal assembly, check valve cartridge, and mix chamber are marked on the A side.

Assemble Front End

NOTICE

To prevent cross-contamination of the equipment’s wet- ted parts, never interchange component A (isocyanate) and component B (resin) parts. The gun is shipped with the A side on the left. The fluid manifold, fluid housing, side seal assembly, check valve cartridge, and mix chamber are marked on the A side.

3				19 6
26	1	16b	17	18
3
20 7				1
21 7				1
22				3
23 3
				25
			16a
1				ti14469a1

1. Remove Front End, see page 33.

26a	3				19 6
					19 6
	26	1	16b	17	18
	20 7				1
	21 7				1
	22				25a 3
23 3

25

16a

29 28 3

2. Remove Throat Seal Liquid bleed port screw (16b).

31 3

30

ti14469a1

3.	Remove check valve assembly (16a).
4.	Remove orifice (25). Repeat for opposite side.
5.	Remove pour tip (19).
6.	Remove front packing (18) then mix module (17).
7.	Remove rear packing nut (23), seal (22), rear pack-
	ing housing (21), and o-ring (20).

1Part is only included with 375 orifices.

3	32	5
	Torque to 20-30 in-lb (2.26-3.39 N•m)
6	Torque to 60-70 in-lb (6.78-7.91 N•m)
		34

7Part is35only included with 250 applicator.

3

1.Install o-ring (20), rear packing housing (21), seal (22), and rear packing nut (23). Torque rear packing nut to 20-30 in-lb (2.26-3.39 N•m).

2.Install mix module (17) then front packing (18).

3.Install pour tip (19) hand-tight.

34

313872B

Image 34

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 ComponentsGrounding Piston Safety LockThroat Seal Liquid 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 Short Term Shutdown Perform Pressure Relief Procedure onShutdown Long Term ShutdownLubrication MaintenanceSupplied Tool Kit 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