Service

Repairs, other than those for which instructions are given below, should be performed by a trained and qualified re- pair agency.

WARNING

To reduce the risk of injury, including fluid injection, splashing in the eyes or on the skin, or injury from moving parts, always follow the Pressure Relief Procedure Warning on page 11 before checking or repairing any part of the spray system.

Inlet Check Valve. See Fig. 15.

1.Unscrew the inlet check valve (26) from the paint pump (22).

2.Clean the gasket (26a), the inlet valve (26), and the paint pump (22) threads and check for erosion. If any of the parts are eroded, replace them.

3.Be sure the threads in the paint pump are clean.

4.Lubricate the threads of the inlet valve with petro- leum jelly. Install the gasket on the valve, then install the valve and torque it to 320±360 in±lb (36±41 N.m).

Outlet Check Valve. See Fig. 15.

1.Unscrew the plug (28d) and the housing (28b).

2.Use a pick, such as a dentist's pick, to remove the seal (28a) from the paint pump (23). The seal may be hard to remove. DO NOT LEAVE THE SEAL IN THE

PAINT PUMP HOUSING.

3.Clean the parts thoroughly, including the threads in the pump, with a compatible solvent. Check all parts for wear or damage and replace as needed.

4.Lubricate the threads of the housing (28b) and plug (28d).

5.Install a NEW seal (28a) in the pump housing. AL- WAYS replace the seal (28a). Do not try to reuse the old seal as it will be deformed.

7.The last coil on one end of the spring is turned in. Place this end over the stud in the plug (28d). Install the ball (28e), washer (28f) and plug, and torque to plug to 380±300 in±lb (32±34 N.m).

Pressure Control. See Fig. 15.

When removing the pressure control (4) to check or clean it, always replace the seal (4a). When replacing the pres- sure control, torque the new control (4) to 125±150 in±lb (14±17 N.m).

Starter Switch. See Fig. 15.

Remove the cover of the switch box. Remove the two screws holding the starter switch (18a). Remove the old switch and install a new one.

Diaphragm. See Fig. 15.

1.Remove the inlet strainer (27). Remove the four paint pump screws (25) and lockwashers (24).

2.Remove the bypass valve (66) and the fluid outlet nipple (67), and then remove the screws (35) and shield (3).

3.Remove the screw (36) and lockwasher (37) from the bracket (38).

4.Pull the paint pump assembly away from the hydrau- lic housing (20) and remove the old diaphragm (21).

CAUTION

Never start the electric motor with the inlet valve (26) removed to avoid damaging the diaphragm.

CAUTION

Be careful not to get any dirt or paint on the new dia- phragm or the hydraulic housing. Contaminants in the hydraulic system can cause the sprayer to mal- function and result in costly damage to the sprayer.

DO NOT TAMPER with the nut (C). The nut is factory set to hold the spring to a specific dimension.

CAUTION

Be sure you do not install a new seal until the old one is removed. Having two seals in the valve will cause performance problems.

6.Install the housing (28b) and torque to 125±150 in±lb (14±17 N.m).

5.Check the gasket (22a) for wear or damage and re- place it if needed. Clean the top of the paint pump and the hydraulic housing thoroughly.

6.Install the new diaphragm assembly (21), lubricate the internal threads of the housing (20), and reas- semble the parts.

 

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Graco PT2500 owner manual Service, Inlet Check Valve. See Fig, Outlet Check Valve. See Fig, Pressure Control. See Fig
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PT2500 specifications

The Graco PT2500 is a powerful and versatile paint sprayer designed for both professional contractors and DIY enthusiasts looking for a reliable tool for their painting projects. With a robust construction and advanced technologies, the PT2500 stands out in the market for its efficiency and performance.

One of the main features of the Graco PT2500 is its high output capacity. This paint sprayer is equipped with a powerful motor that can deliver consistent pressure, allowing for smooth and even application of paint, stains, and varnishes. It is capable of handling a wide variety of coatings, making it suitable for both interior and exterior projects.

Additionally, the PT2500 features Graco’s ProConnect system, which allows for easy pump replacement without the need for tools. This system minimizes downtime and ensures that users can get back to their projects quickly, making it an ideal choice for professionals who need to maintain productivity on the job site.

The PT2500 incorporates advanced RAC X SwitchTip technology. This innovative feature enables users to reverse the tip for quick unclogging, which saves time and ensures a continuous workflow. The switchable tips also allow for various spray patterns, accommodating different project requirements with ease.

Another notable characteristic is the lightweight and portable design of the Graco PT2500. Weighing less than many competitors in its class, this sprayer can be easily transported and maneuvered around the job site or within the home. The included cart provides stability and allows for easy movement, making it ideal for larger projects or jobs that require accessibility.

Furthermore, the Graco PT2500 comes with a built-in filter that helps prevent debris from clogging the spraying nozzle, ensuring a smooth finish every time. It also includes adjustable pressure controls, enabling users to customize the spray pattern and pressure according to the specific requirements of their painting task.

In conclusion, the Graco PT2500 is a feature-rich paint sprayer that combines portability, innovative technology, and user-friendly design. Whether tackling major renovations or simple home improvement projects, this sprayer provides the reliability and performance that users expect from Graco products. With its advanced features, the PT2500 is an excellent investment for anyone looking to achieve professional-quality results in their painting endeavors.
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