Graco 249057, 277070, 277069 Service, Pressure Relief Procedure, Pump Repair Kits, Tools Needed

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Service

Pressure Relief Procedure

WARNING

PRESSURIZED EQUIPMENT HAZARD The system pressure must be manually relieved to prevent the system from

starting or spraying accidentally. To reduce the risk of an injury from accidental spray from the gun, splashing fluid, or moving parts, follow the Pressure Relief Procedure whenever you:

Dare instructed to relieve the pressure, D stop spraying,

D check or service any of the system equipment, D or install or clean the spray nozzle.

1.Engage gun safety latch.

2.Turn ON/OFF switch to OFF.

3.Unplug power cord.

4.Disengage gun safety latch. Hold metal part of gun against grounded metal pail and trigger gun into pail to relieve pressure.

5.Engage gun safety latch.

6.Open any fluid drain valves in system. Leave drain valve open until ready to dispense again.

Pump Repair Kits

Pump

Repair Kit

 

 

248204, 255968

248212

 

 

253056

287825

 

 

248205, 249057, 249059,

248213

257146

 

 

 

Tools Needed

Vise

12 in. adjustable, open end wrench (2) Hammer, 20 oz maximum

Small screwdriver Throat Seal Liquid

Pick or long small screwdriver

Cleaning and Inspecting Parts

1.Clean and inspect parts. Pay particular attention to the ball seats in the intake valve and piston, which must have no nicks or wear, and to the inside of the sleeve and the outside of the piston rod, which must not be worn or scratched. Replace worn or damaged parts.

WARNING

COMPONENT RUPTURE HAZARD Never use sharp or pointed tools to

remove sleeve or other components which could result in pump rupture and

cause serious bodily injury. If the sleeve cannot be removed easily, return the sleeve and cylinder to your Graco distributor for removal.

2.Remove and clean the sleeve when you are repacking the pump.

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Contents Repair Table of Contents Pump Repair Kits ServicePressure Relief Procedure Cleaning and Inspecting PartsRemove packing nut 202 and throat adjust- ment spacer Repair When Pump Is Off The SprayerAssembling the pump Torque to 27 +/--3 ft-lb Grease piston packings 230 231 Skin Injection Hazard Repair When Pump Is On The SprayerRemove piston rod and sleeve Remove piston valve from piston rod with a wrench Ti7341a Push up retaining spring 26 with screwdriver 7570f Ti4258a Technical Data Model 248204, Series a 277069, Series a 255968, Series a Parts -- Pump 248204, 277069Parts Pumps 248205, 249057, 249059, 277070 Parts -- Pump 310643 For Graco Canada Customers Graco Standard Warranty

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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