Service

Fig. 18. Mark IV: Install o-ring (231) on sleeve spacer (230) and install sleeve spacer on sleeve.

ti7340a

230

231

Fig. 18

Fig. 19. Reassemble intake valve with new o-ring (227), seat (212) and ball (214). Seat may be flipped over and used on other side. Clean seat thoroughly.

214

212

227

Fig. 20

7569A

Fig. 21. Torque packing nut (202) down onto adjust- ment spacer (228) 100 +/--10 in-lb.

Remove throat adjustment spacer (228) when pump packings begin to leak after much use. Then tighten packing nut down until leakage stops or lessens. This allows approximately 100 gallons of additional opera- tion before a repacking is required.

202

228

Fig. 19

7570f

Fig. 20. Install intake valve on cylinder. If a wrench is used torque as follows:

67 +/--5 ft-lb (Model 248204, 253056, 255968, 277069)

80+/--5 ft-lb (Model 248205, 249057, 249059, 277070, 257146 )

If a wrench is not used, be sure intake valve is bot- tomed out against cylinder.

Fig. 21

7568A

 

8 310643

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Graco 253056, 277070, 277069, 257146, 249057, 249059, 248204, 255968, 248205 important safety instructions 230 231
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255968, 249057, 253056, 249059, 277069 specifications

Graco is a trusted name in the realm of paint sprayers and finishing tools, offering a variety of models designed for efficiency and ease of use. The models Graco 277070, 248205, 257146, 248204, and 277069 are notable for their performance and advanced features, catering to both professional contractors and DIY enthusiasts alike.

The Graco 277070, known for its robust construction, features a powerful motor that ensures consistent spray pressure. Its lightweight design enhances maneuverability, making it ideal for large projects. The unit is equipped with a piston pump, which allows for superior pressure output and the ability to handle thicker materials without clogging.

Moving on to the Graco 248205, this model stands out with its adjustable spray pattern, allowing users to switch between horizontal and vertical settings with ease. It also incorporates a built-in filter system to keep paint free of debris, resulting in a cleaner application. Additionally, the 248205 is compatible with various types of coatings, making it a versatile choice for different projects.

The Graco 257146 takes performance a step further with its ProSpray technology, which provides an ultra-fine finish while reducing overspray. This model is designed with an ergonomic handle, enhancing user comfort during extended use. Its quick-change tip system allows for fast switching between different nozzle sizes, making it easier to adapt to various spraying tasks.

The Graco 248204 is specifically designed for smaller projects and is incredibly user-friendly. This sprayer features a simple setup process with an easy-to-understand user manual, making it perfect for beginners. Its compact size doesn’t compromise on power, delivering a suitable output for backyard projects and home improvements.

Lastly, the Graco 277069 is a well-balanced model that blends portability with performance. It offers a flexible hose for extended reach and an adjustable pressure control dial, allowing users to customize spray patterns and flow rates according to their needs. The durable construction ensures long-term reliability, even under heavy use.

All these Graco models are engineered with advanced technologies that prioritize performance and user experience. Their features collectively enhance spray accuracy, reduce cleanup time, and facilitate a smoother painting process, solidifying Graco’s reputation as a leader in the finishing equipment market.
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