Repair

Reassemble the Lower

1.Install the manifolds (19, 20) on the cylinder (1). Lubricate the o-rings (21) and ensure they are in place on the mating surfaces. Apply thread adhesive to the screws (26) and torque to 13–23 in-lb (1.5–2.5 N•m).

2.Lubricate the o-rings (33). Apply thread lubricant and install the adapters (27) and o-rings (33) on the cylinder (1). Connect the inlet (29) and outlet

(28)tubes at the cylinder (1).

3.Lubricate the o-rings (22, 24). Install the o-rings (22), seats (23), and o-rings (24) in the manifolds (19 and 20). Apply thread lubricant and screw the dosing valves (25) into the manifolds. Torque to 20–30 ft-lb (28–40 N•m).

4.Lubricate the piston packings (16) and o-ring

(42).Assemble the piston on the lower rod (2b) as follows:

a.Install one washer (12) and the bottom (shorter) spacer (13).

b.Install one packing (16) on each shoulder of the piston bearing (14), with the lips facing away from the bearing. Install the piston bearing (14).

c.Install the o-ring (42), the top (longer) spacer (15), and one washer (12).

Figure 13 Piston Rod Assembly

5.Apply thread adhesive to the male threads of the lower rod (2b). Screw the upper piston rod (2a) onto the lower rod, using the flats on both ends. Torque to 35–45 ft-lb (48–61 N•m).

6.Insert the piston rod assembly into the cylinder

(1) from the bottom. Push the rod up until it protrudes from the top of the cylinder (1).

NOTE: The 70 cc lower 24T793 includes two u-cup packings (10) in the lower throat cartridge; the 35 cc lower 24T792 includes only the upper one.

7.Lubricate the o-rings (7) and packing(s) (10). Place the upper packing (10) into the tool (T) included with the seal kit. The lips of the packing must face out of the tool. Insert the tool into the lower throat cartridge (4). Push on the tool’s shaft (P) to seat the packing securely in the cartridge. When seated, the lips of the packing will be facing up. Install the bearing (11). On 70 cc lowers only, install the second packing (10) with the lips also facing up.

Figure 14 Lower Throat Assembly

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332339B

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Graco 332339B important safety instructions Reassemble the Lower
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332339B specifications

The Graco 332339B is a versatile and user-friendly paint sprayer designed to meet the needs of both DIY enthusiasts and professional contractors. Its robust construction and advanced features make it a popular choice for a wide range of painting tasks, from small touch-ups to large-area applications.

One of the standout features of the Graco 332339B is its adjustable pressure control, which allows users to customize the flow of paint according to the specific requirements of their project. This flexibility enables operators to achieve a fine finish on intricate details while also handling broader surfaces efficiently. The unit is capable of spraying a wide variety of materials, including stains, latex paints, and even heavier coatings, making it suitable for a multitude of applications.

The sprayer is equipped with a high-efficiency airless pump that provides consistent pressure and reduces the risk of clogging, ensuring a smoother operation. This pump technology not only enhances performance but also contributes to a more efficient use of paint, resulting in less waste and cost savings over time.

Another notable characteristic of the Graco 332339B is its lightweight and portable design. The unit is easy to transport, making it convenient for both in-home use and outdoor projects. Additionally, the built-in handle and compact size facilitate maneuverability and storage, further enhancing its practicality.

Safety features have also been integrated into the design of the sprayer. The Graco 332339B includes a pressure relief valve that helps prevent paint from being forced out when the nozzle is not engaged, reducing the risk of injuries or messes. Moreover, its easy-clean system ensures that maintenance is manageable, allowing users to quickly switch between different colors or types of paints.

In summary, the Graco 332339B is a powerful and efficient paint sprayer designed for versatility and ease of use. With its adjustable pressure control, high-efficiency airless pump, portable design, and safety features, it proves to be an excellent investment for anyone looking to achieve professional-quality results in their painting projects. Whether for renovation work, crafting, or regular maintenance, this sprayer stands out as a reliable tool that elevates the painting experience.
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