Graco ti25442a manual Repairing the Diaphragm Valve, Perform the Pressure Relief Procedure

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Repair

Repairing the Diaphragm Valve

NOTE: The diaphragm (17C127 – EQ300, 17C128

–EQ600) can be replaced without removing the assembly from the panel. You will need an 8 mm Allen wrench for the EQ600S and a 6 mm for the

EQ300S.

1.Perform the Pressure Relief Procedure, page 8 .

2.Loosen all 4 Allen-head cap-bolts evenly and then remove them completely while supporting the canister of the diaphragm valve.

3.Replace the diaphragm (natural rubber compound) and hand-tighten it as far as possible to establish the alignment with the canister.

NOTE: There are two shims between the diaphragm and the actuator. Keep the shims and reuse them (they do not come with the replacement diaphragm). Do not cause any pre-load or torque on the diaphragm by over-tightening it in a misaligned position.

4.Insert all 4 Allen-head cap bolts but do not tighten them.

5.Apply more than 80 psi (5.5 Bar, MPa) air pressure to the regulator inlet to cause the piston to retract.

6.With the piston retracted, hand-tighten the 4 Allen-head cap bolts.

7.Release the air pressure.

8.Tighten the cap-bolts in an alternating pattern (see image below) to 80 +/- 8 in-lb (9 +/- 0.9 N•m). This will cause a slight bulge in the diaphragm between the canister and the stainless steel casting.

1 3

42

9.Test and confirm that the unit is working properly.

NOTE: This can be done using only water to charge the equipment – there is no need to use abrasive for this test.

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Contents Important Safety Instructions EcoQuip Vapor Abrasive Blast SystemContents ModelsRelated Manuals Dust and Debris Hazard Burn Hazard 334666B System Component Identification EQ200T and EQ400TDataTrak Controls KeyPressure Relief Procedure Checklist Before Starting OperationLifting the Trailer Systems Connecting the Blast Hose and Air Hose Setting Up the Equipment 10 gal 200-500 lb Ti24824a 0 0 0 8 8 0 0 0 3 Blasting Tips Blasting on Higher SurfacesWood Grit Size Blast PressureGeneral SteelUsing the Wash Feature Refilling the Pot with Abrasive Shutting Down Operation Winterizing the Equipment Troubleshooting Problem Cause SolutionSee Refilling the Pot with Abrasive, See Pneumatic Blast Control Circuit If flushing does not solve the problem, see Troubleshooting Examples Checking for LeaksPneumatic Blast Control Circuit Repairing the Main Air Regulator RepairFlushing the Diaphragm Valve Repairing the Diaphragm Valve Perform the Pressure Relief Procedure,Cleaning the Auto-Vent Valve Replacing the DataTrak Battery Replace BatteryApproved Batteries Replacing the DataTrak Fuse Replace FuseApproved Fuses DataTrak Part EQ200T and EQ400T Ref. Part DescriptionPart Description Enclosure Enclosure Parts List Trailers EQ200 TrailersEQ4E03 Trailer EQ4E03 Parts List Description EQ4E04 Trailer EQ4E04 Parts List Description Pressure Pot Parts List Pressure PotHose Schematic EcoQuip Trailer Systems Vapor Abrasive Blast Systems and AccessoriesEcoQuip Skid Systems Model Series BrakesModel Series Description Mobile/Skid UnitsTrailer Units Model DescriptionHoses NozzlesModel Description Type Length Blast Control Other Accessories Common Spare PartsModel Dimensions Technical Specifications EQ200T MetricEQ400T Metric 334666B Graco Extended Warranty for EcoQuip Components Graco Information

ti25442a specifications

The Graco TI25442A is a state-of-the-art paint sprayer designed for both professionals and DIY enthusiasts looking to achieve a flawless finish on various projects. This versatile tool is specifically engineered for residential and commercial applications, providing an exceptional solution for painting walls, ceilings, furniture, and more.

One of the standout features of the Graco TI25442A is its powerful airless spraying technology. This ensures a high-pressure output, allowing for a smooth and even application of paint without the need for thinning. The sprayer is capable of handling a variety of coatings, including stains, primers, and latex paints, making it a multifaceted addition to any toolbox.

Another defining characteristic of the TI25442A is its adjustable pressure control. This feature allows users to easily modify the spray pressure to suit different project needs, providing better control and precision. Whether you’re tackling intricate details or larger surfaces, this sprayer is flexible enough to accommodate various painting techniques.

The Graco TI25442A also boasts a durability-focused design. It is built with high-quality materials that enhance its longevity, ensuring that it can withstand the rigors of frequent use. The sprayer is also equipped with a stainless-steel piston pump, which provides superior performance and reliability over time.

Ease of maintenance is another highlight of this model. The sprayer features a user-friendly design, making it simple to clean and maintain after each use. The built-in filter helps prevent clogs, allowing for a hassle-free spraying experience.

Additionally, the TI25442A comes with a robust hose that offers ample length for maneuverability during projects. This feature is particularly beneficial for larger areas, as it reduces the need for constant repositioning of the sprayer.

In conclusion, the Graco TI25442A is a powerful and versatile airless paint sprayer that combines advanced technology with user-friendly features. Its adjustable pressure control, durable construction, and ease of maintenance make it an excellent choice for anyone looking to achieve professional-quality results in their painting projects. This sprayer is a reliable tool that stands out in the competitive market of paint application equipment.
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