Graco 288400 important safety instructions Troubleshooting

Page 7

3.Remove the thermostat housing by removing the two mounting screws and carefully pulling the housing away from the heater.

4.Push in the red reset button on the switch.

5.If the Thermal Limit Switch does not feel as though it reset, then disconnect one lead from the Thermal Limit Switch and read continuity across the switch with an ohmmeter. If there is no continuity, the switch is defective and must be replaced.

6.If this does not solve the problem, replace the thermostat.

7.Move the thermostat housing back into place and install the two mounting screws.

8.Switch on the electrical power and monitor the operation of the primary heater to ensure it is functioning properly.

9.Heating Rods - The primary heater contains four 1250-watt (38.7 ohms each) heating rods wired in parallel.

To check that all rods are operational, proceed as follows:

a.Turn OFF all switches and lock out incoming power at the source.

b.Remove the thermostat housing by removing the two mounting screws and carefully pulling the housing away from the heater.

c.Remove the heating rod wire nuts. Separate the heating rod leads from the wire harness and read the resistance across the four heating rods with an ohmmeter. The combined resistance should be 9.6 ohms. A higher resistance indicates that at least one of the rods is not working. If this is the case, proceed to Step d.

d.Disconnect the heating rods and measure the resistance of each rod. Each rod should measure 38.7 ohms.

e.Reconnect the heating rods and recheck the resistance.

f.Move the thermostat housing back into place and install the two mounting screws.

Troubleshooting

g.Switch on the electrical power and monitor the operation of the primary heater to ensure it is functioning properly.

The design of the primary heater allows it to maximize the heat transfer from the power available. However, under certain conditions, reducing the flow rate is necessary when the heater is not available to reach the required temperature.

311327E

7

Page 6 Page 8
Image 7
Page 6 Page 8
Contents Predator Proportioner Related Manuals ContentsElectric Shock Hazard Fire and Explosion Hazard Before Beginning Repair Pressure Relief ProcedureFlushing Problem Solution TroubleshootingProblems SolutionsTroubleshooting Proportionting System Hose Heat System Troubleshooting Proportioning Pumps Perform Pressure Relief Procedure,Repair Pump RemovalSee Air Motor Assembly on Pump InstallationAir Motor Removal ServiceInstallation Fluid Inlet Filter Screen Primary HeaterIsocyanate Pump Lubricant Follow Pressure Relief Procedure,Recommended Spare Parts AccessoriesParts Ref. Part Description Qty Parts Main AssemblyElectrical Console Part Description Qty Parts Electrical ConsoleAir Motor Assembly Pump Air Motor AssemblyPrimary Heater Assembly Stop Primary Heater AssemblyHose Heat Power Pack Hose Heat Power Pack Power Supply Pneumatic Schematic Pneumatic SchematicElectrical Schematic Electrical SchematicParts Technical Data Graco Information Graco Standard Warranty

288400 specifications

The Graco 288400 is a versatile airless paint sprayer designed for both professional contractors and DIY enthusiasts. Renowned for its reliability and high performance, the Graco 288400 offers a seamless painting experience while ensuring superior finish quality.

One of the standout features of the Graco 288400 is its powerful pump, which delivers a consistent flow of paint at a maximum pressure of 3000 PSI. This high pressure allows for the use of thicker materials, ensuring that users can tackle a variety of coatings, from stains to latex paints, without compromising on performance.

The sprayer is equipped with Graco's ProConnect feature, which allows for easy pump replacement without the need for specialized tools. This technology not only reduces downtime but also ensures that users can quickly get back to their projects with minimal interruption. The Graco 288400 is designed with user convenience in mind, featuring a lightweight design and an ergonomic handle that reduces fatigue during extended use.

Another notable characteristic of the Graco 288400 is its compatibility with a wide range of spray tips. The FlexLiner bag system eliminates the need for traditional paint buckets, allowing for quick color changes and easier cleaning. This innovative system also minimizes paint waste, making it an eco-friendly choice.

The Graco 288400 comes with a 25-foot hose, empowering users to extend their reach during large jobs without having to constantly reposition the sprayer. This added length ensures that users can efficiently cover large areas, such as homes or commercial buildings, with ease.

Safety is also prioritized with features such as the built-in pressure control and the easy-to-use on/off switch. These elements help ensure safe operation while providing users with the flexibility to adjust the pressure settings based on their project needs.

In summary, the Graco 288400 stands out as a high-quality airless paint sprayer that combines powerful performance, user-friendly features, and innovative technologies. With its robust design and efficient capabilities, the Graco 288400 is an excellent choice for those looking to achieve professional-grade painting results with ease. Whether you are a seasoned contractor or a homeowner tackling a DIY project, the Graco 288400 promises to deliver the quality and durability needed to get the job done right.
Top Page Image Contents