Service

Reassembly

Refer to Fig. 8 for reassembly.

1.Place an 8 mm (5/16 in.) dia. brass rod lengthwise in a vise. Install a new piston seal (14*) on the piston seat (15). Apply thread lubricant to the threads of the piston guide (12). Place the piston guide (12) securely on the brass rod. Using a 22 mm crow’s-foot, screw the piston seat (15) into the piston guide. Torque to 35–41 N.m (26–30 ft-lb).

2.If it was necessary to remove the priming piston rod (21) from the piston (13), apply thread lubricant to the female threads of the piston. Place the flats of the piston (13) in a vise. Hold the flats of the rod with an 8 mm wrench, and screw the rod into the piston. Torque to 35-41 N.m (26-30 ft-lb). Be careful not to create burrs on the flats of the rod.

3.Use a vise with soft jaws to hold the flats of the displacement rod (1). Install the assembled piston guide/seat on the piston (13). Apply thread lubri- cant to the female threads of the piston, and screw the piston assembly onto the rod, using a 15 mm wrench on the piston flats. Torque to 35-41 N.m

(26-30 ft-lb). There will be a small gap between the top of the piston (13) and the shoulder of the rod

(1).

4.Place the outlet housing (9) in a vise. If the bleeder valve housing (BB) was removed, apply PTFE tape to the threads and reinstall it in the outlet housing (9), making sure the bleed hole faces toward the bottom of the outlet housing. Then screw the valve plug (AA) fully into the valve housing (BB).

NOTE: The bleeder valve plug (AA) has two sets of threads. When reassembling, be sure the plug is fully screwed into the valve housing (BB).

NOTE: It is not ordinarily necessary to remove the outlet nipple (7) and o-ring (8*). However, if they were replaced because of damage, lubricate the o-ring (8*) and place it on the nipple (7). Screw the nipple into the outlet housing (9). Torque to 60-84 N.m (44–62 ft-lb).

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Graco 222839 Series A, 222907 Series A dimensions Reassembly
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222839 Series A, 222907 Series A specifications

Graco, a renowned leader in fluid management technology, offers a wide range of quality products aimed at various industries. Two notable entries in their lineup are the Graco 222839 Series A and the 222907 Series A. These models exemplify the company’s commitment to innovation, reliability, and performance.

The Graco 222839 Series A is a hydraulic sprayer specifically designed for high-performance applications. One of its main features is the ProXChange technology. This unique system allows users to replace worn or damaged parts on-site, minimizing downtime and enhancing productivity. The unit boasts a powerful motor that supports high-pressure spraying, ideal for large surface areas and demanding projects. Additionally, the ergonomic design ensures ease of use, allowing operators to navigate tight spaces effectively.

Another significant advantage of the 222839 Series A is its compatibility with a wide range of coatings, including stains, sealers, and paints. The sprayer’s adjustable flow rate and pressure settings give users precise control over the application, ensuring a flawless finish without overspray. The integrated filter system reduces the risk of clogs, enabling uninterrupted work even with thicker materials. Furthermore, safety features such as an automatic shut-off mechanism enhance user protection during operation.

On the other hand, the Graco 222907 Series A is particularly suited for professional painters and contractors who require high efficiency and reliability in their tools. This model shares similarities with the 222839 in terms of build quality but offers several distinctions. It includes the SmartControl technology, which provides consistent pressure output for a superior finish, regardless of the viscosity of the material used.

The 222907 Series A also features ProConnect, which allows for quick and easy setup and breakdown, making it ideal for on-the-go applications. Its transport design, including a robust cart with large wheels, further facilitates maneuverability across various job sites. Additionally, the easy-to-read pressure gauge helps operators monitor performance, ensuring the best possible outcomes for their projects.

In conclusion, both the Graco 222839 Series A and the 222907 Series A deliver exceptional performance with innovative technologies aimed at improving efficiency and user experience. Whether for large-scale jobs or intricate detailing, these sprayers represent the pinnacle of modern fluid application technology, making them indispensable tools for professionals in the industry.
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