Graco 237607, 237649, 243775, 235627, 235628 warranty Valve Stem and Seal Service

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Service

Valve Stem and Seal Service

If fluid leaks past the v-block seal (3), the v-block seal or valve stem (24) may be worn or damaged. To replace the seal or valve stem, follow the procedure below.

WARNING

SKIN INJECTION HAZARD

To reduce the risk of a serious injury, including fluid injection, follow the Pres-

sure Relief Procedure on page 6 whenever you are instructed to relieve the pressure.

1.Relieve the pressure in the system.

2.Disconnect the gun from the hose.

3.Unscrew the spring retainer (21) and remove the spring (4). See Fig. 4.

4.Unscrew the spring housing (28) with a 1/8 inch hex allen wrench.

5.Unscrew the valve seat nut (26).

6.Remove the adjustment bracket (20) and stem nut

(1) from the stem.

7.Remove the valve stem (24).

8.Remove the seal retainer (27) and seal (3). Replace the seal.

9.Secure the gun body (17) in an assembly fixture.

10.Lubricate the v-block seal (3) and install it into the gun body (17) with the lips of the seal facing into the housing.

11.Lubricate the seal retainer (27). Torque the seal retainer into the gun body (17) to:

Models 235627, 237607, and 237649: 50–60in-lbs(5.6–6.8 NSm).

Models 235628 and 243775: 100–125in-lbs(11.3–14.1 NSm).

12.Lubricate the valve stem threads (24) and install it into the gun body (17). Thread the stem assembly through the v-block seal (3).

CAUTION

Installing the valve stem (24) without turning it clock- wise could damage the v-block seal and result in fluid leakage.

13.Thread the nut (1) all the way onto the valve stem

14.Install the adjustment bracket (20) and spring housing (28) onto the valve stem (24).

15.Lubricate the threads and o-ring sealing surface on the valve seat nut (26). Torque the valve seat nut into the gun body (17) to:

Models 235627, 237607, and 237649: 70–80in-lbs(7.9–9.0 NSm).

Models 235628 and 243775: 100–125in-lbs(11.3–14.1 NSm).

16.Lubricate the spring (4) and spring retainer threads

(21)and install them in the gun body (17).

17.Insert a 1/8 inch hex allen wrench through the spring retainer (21) and into the spring housing

(28).Adjust the trigger travel and valve opening to the desired position.

18.Using a 5/16 inch wrench, tighten the stem nut (1) to set the adjustment.

19.Adjust the spring adjustment screw (21) to the desired trigger pull force.

10 308253

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Contents Instructions Parts List Important Safety InstructionsSymbols 308253Fire and Explosion Hazard Technical Data Installation Ground the SystemGun Trigger Safety Pressure Relief ProcedureOperation Dispensing Flushing SafetyRead Grounding the System, on Service Seal, o-rings onlyAdjusting the Valve Adjusting the Spring TensionValve Stem and Seal Service Complete Disassembly and Assembly of the Gun 27 E HAssembly 42K1 343 24*K E 21 E 28 a 19* G J Parts Models 235627Model Description QtyModels Parts 05447A Ring Ptfe Parts 111457 Graco Phone Number Graco Standard WarrantyToll Free

243775, 237607, 235628, 235627, 237649 specifications

Graco, a leader in fluid management and sprayers, offers a variety of products designed to enhance performance for both industrial and consumer applications. Among their extensive range of offerings, the models Graco 237649, 235627, 235628, 237607, and 243775 stand out due to their innovative technologies and features.

The Graco 237649 is notable for its superior durability and efficiency. This model is designed for versatility, making it suitable for a variety of paint and coating applications. Equipped with a robust motor, it ensures a consistent flow rate and pressure, optimizing the painting process. The unit also features a sturdy build to withstand the rigors of heavy-duty use, providing a long lifespan.

Moving onto the Graco 235627, it incorporates advanced ergonomics and user-friendly features. This model is designed for ease of use, making it ideal for less experienced users. With an integrated cup design, the 235627 allows for quick refills and efficient cleanup, minimizing downtime between projects. Its compact size and lightweight nature make it easily portable, perfect for both indoor and outdoor use.

The Graco 235628 enhances the painting experience with its precision spray technology. This model provides users with a fine, consistent spray pattern, allowing for a professional finish on a variety of surfaces. Additionally, its adjustable pressure settings give users control over the application, ensuring optimal results for different materials and coatings.

The Graco 237607 focuses on versatility and power. This model is built to handle a wide range of materials, from thin stains to thick coatings. This adaptability is complemented by its easy-to-use controls, which allow users to select the appropriate setting for their specific application. The 237607 is ideal for medium to large projects, where efficiency and speed are paramount.

Lastly, the Graco 243775 is renowned for its innovative pump technology. The model features a unique design that minimizes clogging and maximizes flow, making it particularly effective for a variety of coatings. Its lightweight design ensures that users can maneuver it with ease, while advanced sealing technology prolongs the lifespan of the pump.

In summary, Graco's models 237649, 235627, 235628, 237607, and 243775 offer an array of features tailored to meet diverse customer needs. With their commitment to durability, efficiency, and advanced technology, these sprayers are positioned to deliver exceptional performance across various applications. Whether for professional contractors or DIY enthusiasts, Graco’s equipment is designed to ensure a seamless painting experience.
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