Replacement part 0288775 is a pressure control knob used to adjust and set the output pressure on compatible sprayers. When the original knob becomes worn, cracked, or difficult to turn, it can lead to inaccurate pressure settings and inconsistent spray performance. This knob restores precise pressure adjustment and reliable control on specified ProFinish and SprayTech models.
| Part Number | 0288775 |
|---|---|
| Part Description | Pressure Control Knob |
| Brand | ProFinish / SprayTech |
| Fits | ProFinish AS1130; SprayTech AirCoat System; SprayTech Airless ED655 Plus, ED1150 |
| Condition | New |
The 0288775 Pressure Control Knob is a user interface component that allows operators to adjust the output pressure on compatible airless and air-assisted sprayers. On ProFinish and SprayTech models, this knob provides precise control over material flow and fan pattern by regulating the pump's pressure setting.
A damaged, cracked, or stiff pressure control knob can make fine pressure adjustments difficult, lead to inconsistent spray patterns, or prevent the operator from reaching optimal pressure settings. Replacing the knob restores smooth, accurate pressure control and prevents wear on the internal adjustment mechanism.
| Pressure regulation | Allows user to increase or decrease pump output pressure for different materials |
|---|---|
| Fine adjustment | Provides precise control over spray pattern and material flow rate |
| User interface | Serves as the primary control point for pressure setting on the sprayer |
| Cracks or breaks | Visible damage that prevents proper grip or turning |
|---|---|
| Difficulty turning | Knob is stiff, binds, or requires excessive force to adjust |
| Slipping | Knob turns without changing pressure (internal teeth worn) |
| Missing knob | Original knob lost or removed, leaving adjustment shaft exposed |
Part 0288775 is compatible with the following ProFinish and SprayTech sprayer models. Always verify fitment using the correct parts diagram for your specific machine.
| Model | Component |
|---|---|
| ProFinish AS1130 | Pressure Control Knob |
| SprayTech AirCoat System | Pressure Control Knob |
| SprayTech Airless ED655 Plus | Pressure Control Knob |
| SprayTech Airless ED1150 | Pressure Control Knob |
Pressure control issues often involve more than just the knob. When replacing the knob, these components are commonly inspected or replaced together.
Worn or damaged shafts can cause knobs to slip or bind, requiring replacement.
Faulty gauges can give false readings even with proper knob adjustment.
Valve issues can cause pressure fluctuations regardless of knob setting.
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