Graco 309524L important safety instructions Thermal Limit Sensor, Control Knob, Heater Block

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Repair

Thermal Limit Sensor

CAUTION

To avoid damaging the capillary tube (GG), which can cause heater malfunction, do not kink or nick the tube.

To avoid shorting out the heater, do not allow the cap- illary tube to contact the block terminal (3A).

1.Follow Pressure Relief Procedure, page 14.

2.Remove housing cover (18).

3.Remove nut (FF) and nut (3B) holding the leads of the thermal limit sensor (15) and remove the sensor. See FIG. 15 or 16, page 19.

4.Apply thin film of thermal lubricant (part no. 110009) to the thermal limit sensor (15) bulb and install a new sensor in the reverse order of disassembly. See Reassembly Notes, below.

Control Knob

1.Follow Pressure Relief Procedure, page 14.

2.Turn knob (33) to setpoint 1.

3.Loosen setscrew (30) in the control knob (33).

4.Remove control knob (33).

5.Remove adjusting knob (12) from the control knob (33), and press fit it onto the new control knob. Check the bushing (29) and replace it if worn.

6.Position new knob (33) so setpoint 1 aligns with mark (JJ) on the housing (12:00 position) and the knob is about 1/16 in. (1 mm) away from the hous- ing. Tighten setscrew (30).

Heater Block

1.Follow Pressure Relief Procedure, page 14.

2.Remove housing cover (18).

3.Hazardous Location Heater only: Remove electrical junction box cover (4).

4.Hazardous Location Heater only: In the junction box (1B), disconnect the main power lead from the ter- minal of the post bushing (9A).

Non-hazardous Location Heater only: Disconnect the main power lead from the primary thermostat

5.Hazardous Location Heater only: In the electrical housing (1A), use a wrench on the flats of the post bushing (9A) to unscrew it from the housing.

6.See the appropriate sections on pages 18-20to remove the primary thermostat and probe (24), the backup thermostat (10), the thermal limit sensor

(15)and the control knob (33).

7.Remove the 6 screws (6) and lockwashers (5) hold- ing the housing to the heater block (3).

8.Reassemble heater with the new block (3) in reverse order of disassembly.

Reassembly Notes

•Refer to FIG. 15 or 16 for wiring connections.

•Non-hazardous Location Heater only: Make sure gasket (47) is installed and aligned with electrical housing screw holes.

•Secure cover (18) with lockwashers (5) and screws (6 or 52); torque screws to 89 in-lb (10 N•m).

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309524L

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Contents Viscon HP Hazardous Location Heater shownModels Hazardous Location HeatersNon-hazardous Location Heaters ApprovalsManual Conventions ContentsTranslations Skin Injection Hazard Equipment Misuse Hazard Key InstallationTypical Installation Drawing Chart Notes Selecting TubingBracket Mounting HeaterWall Mounting Fluid Connections Accessories Cart MountingElectrical Connections Requirements For All InstallationsHazardous Location Installation Requirements Grounding Wall Mounted WiringCart Mounted Wiring Determining Proper Fluid Temperature To find your fluid’s Under-Boil temperatureEffect of Temperature on Viscosity Pressure Relief Procedure OperationInitial Flushing Priming SystemRefer to FIG Setting Heater ControlAdjusting for Spraying Maintenance Follow Pressure Relief Procedure,Flushing Unclogging Fluid PassagesTroubleshooting Problem Cause SolutionBackup Thermostat Reassembly NotesRepair Primary Thermostat & ProbeThermostat Repair Hazardous Location Heaters Heater Block Thermal Limit SensorControl Knob Control Repair Hazardous Location Heaters Parts Hazardous Location HeatersRef. No Heater Block Series Volts / Watts Part No. Description QtyNon-Hazardous Location Heaters Enclosure Accessories Cable Clamp Kit 246303 Installation Cable Clamp Kit KeyTechnical Data Maximum Temperature Rise vs. Flow RateDimensions Graco Standard Warranty Graco Information

309524L specifications

The Graco 309524L is a versatile and high-performing airless paint sprayer designed for both professional contractors and DIY enthusiasts. This innovative tool stands out for its efficiency, ease of use, and excellent finish quality, making it a top choice for various painting projects, from small residential jobs to larger commercial applications.

One of the main features of the Graco 309524L is its robust power system, which delivers consistent pressure and flow. This ensures that users can achieve even coverage and a superior finish, reducing the likelihood of roller marks or brush strokes. The unit also boasts an adjustable pressure control system, allowing users to fine-tune the paint output according to the specific needs of the project. This feature enhances precision, particularly when working on intricate surfaces or detailed projects.

The Graco 309524L employs advanced technology in its design. It utilizes a "TruPulse" technology that continuously monitors and adjusts the pressure based on the requirements of the job. This results in a smoother application and optimal performance, leading to reduced paint waste and faster completion times. Additionally, the sprayer is equipped with a durable and lightweight frame, making it easy to transport and maneuver around job sites.

Another significant characteristic is the Rapid Clean technology, which simplifies the cleanup process. After completing a painting task, users can easily flush the system with water or solvent, ensuring that the sprayer is ready for future use without the hassle of a complicated disassembly process.

The Graco 309524L is compatible with a wide range of coatings, including latex, stains, and primers, broadening its utility for various projects. Its easy setup and intuitive controls enable users of all experience levels to achieve professional-quality results with minimal effort.

Moreover, the unit comes with a selection of spray tips and a flexible paint hose, providing versatility for different applications. Whether it's interior walls, ceilings, or exterior surfaces, this sprayer meets the demands of various projects with ease and efficiency.

In summary, the Graco 309524L is a reliable and innovative airless paint sprayer that combines power, precision, and user-friendly features. Its advanced technologies and versatile capabilities make it an excellent investment for anyone looking to enhance their painting experience, ensuring high-quality results on every job.
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