Service

4.Unscrew one outer plate (105) from the diaphragm shaft (24). Remove one diaphragm (401), and the inner plate (104). See Fig. 13.

NOTE: PTFE models include a PTFE diaphragm (403) in addition to the backup diaphragm (401).

5.Pull the other diaphragm assembly and the dia- phragm shaft (24) out of the center housing (1). Hold the shaft flats with a 19 mm open–end wrench, and remove the outer plate (105) from the shaft. Disassemble the remaining diaphragm assembly.

6.Inspect the diaphragm shaft (24) for wear or scratches. If it is damaged, inspect the bearings (19) in place. If the bearings are damaged, refer to page 22.

7.Reach into the center housing (1) with an o-ring pick and hook the u-cup packings (402), then pull them out of the housing. This can be done with the bearings (19) in place.

8.Clean all parts and inspect for wear or damage. Replace parts as needed.

Reassembly

1.Grease the shaft u-cup packings (402*) and install them so the lips face out of the housing (1). See Fig. 13.

2.Grease the length and ends of the diaphragm shaft (24), and slide it through the housing (1).

3.Assemble the inner diaphragm plates (104), dia- phragms (401*), PTFE diaphragms (403*, if pres- ent), and outer diaphragm plates (105) exactly as shown in Fig. 13. These parts must be assembled correctly.

4.Apply medium-strength (blue) LoctiteR or equiva- lent to the threads of the fluid-side plates (105). Hold one of the outer plates (105) with a wrench, and torque the other outer plate to 20 to 25 ft-lb (27 to 34 N-m) at 100 rpm maximum. Do not over-torque.

5.Align the fluid covers (101) and the center housing

(1) so the arrows (A) on the covers face the same direction as the air valve (B). Secure the covers with the screws (106 and 112), handtight. Place the bolt caps (113*) on the longer screws (106), and install the longer screws in the top and bottom holes of the covers. See Fig. 12.

6.First, torque the longer screws (106) oppositely and evenly to 130 to 150 in-lb (14 to 17 NSm), using a 10 mm socket wrench. Then torque the shorter screws (112). See Torque Sequence, page 30.

7.Reassemble the ball check valves and manifolds as explained on page 18.

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Graco D72, DS5, D82, D85, DR2, DR5, DS2, D81, D75 important safety instructions Service
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D75, D81, D85, DS5, DS2 specifications

Graco is a well-known name in the world of spray equipment and fluid management systems, and its range of airless sprayers like the D82, DR2, DR5, D72, and DS2 exemplifies innovation and quality. These models are engineered to meet the diverse needs of professional painters, contractors, and DIY enthusiasts alike.

The Graco D82 is designed for high-performance applications, delivering consistent spray patterns and superior coverage. One of its standout features is the ProConnect system, which allows users to quickly change pumps on the job site, minimizing downtime. Its SmartControl technology ensures a consistent spray pattern at any pressure, allowing for versatility across a range of coatings. Its lightweight, portable design also makes it an ideal choice for jobs of all sizes.

Moving on to the DR2, this model boasts two-piston technology which provides a reliable and powerful performance. It is specifically engineered for working with thicker materials, making it perfect for heavy coatings like elastomerics or textured paints. The DR2's integrated filtration system protects the pump from debris, prolonging its life and ensuring cleaner finishes.

The Graco DR5 takes it a step further by offering a robust solution for contractors working on large-scale projects. This model includes Graco's Endurance pump which is known for its durability and performance longevity. The DR5 features an ergonomic design that enhances user comfort during extended use, while its heavy-duty build can withstand the rigors of demanding job sites.

Next in line is the D72, which offers an efficient spraying solution for both interior and exterior applications. It comes equipped with Graco’s easy-to-use controls and an extended reach design that makes it suitable for large projects. The D72 also integrates advanced technology for automatic pressure adjustment, ensuring optimal spray results regardless of the conditions.

Lastly, the DS2 is a compact yet powerful sprayer suited for smaller projects or tight spaces. This model delivers professional-grade results without the bulk. It features a user-friendly interface that makes it accessible for beginners while still providing the performance features necessary for seasoned professionals.

In summary, the Graco D82, DR2, DR5, D72, and DS2 each bring their own unique advantages to the table. From advanced technologies like ProConnect, SmartControl, and Endurance pumps to user-friendly designs, these models represent Graco's commitment to providing high-quality spray solutions that cater to the diverse needs of their users. Whether for heavy-duty applications or smaller projects, Graco's lineup offers a comprehensive range of options for effective and efficient painting.
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