

Part 0551520 is a replacement mechanical control assembly for compatible Advantage, RentSpray, and SprayTech equipment. This assembly governs machine functions through mechanical linkages, providing operator control over pressure and operation. When the original control becomes worn, damaged, or fails, replacement restores proper machine control.
| Part Number | 0551520 |
|---|---|
| Part Description | Mechanical Control Assembly |
| Brand | Universal |
| Fits | Advantage 400; Advantage 500; RentSpray 400; SprayTech Airless Advantage EPX2155; SprayTech Airless Advantage EPX2255; SprayTech Airless EPX2155; SprayTech Airless EPX2255 |
| Condition | New |
The 0551520 mechanical control assembly is a direct replacement operator interface component for Advantage 400, Advantage 500, RentSpray 400, SprayTech Airless Advantage EPX2155, SprayTech Airless Advantage EPX2255, SprayTech Airless EPX2155, and SprayTech Airless EPX2255 equipment. This assembly encompasses the mechanical linkages, levers, knobs, and associated hardware that allow the operator to control machine functions such as pressure adjustment, on/off control, and other operational settings. Mechanical controls provide direct, tactile feedback and reliable operation without reliance on electronic components. A worn, damaged, or failed control assembly can make the machine difficult or impossible to operate correctly, leading to inconsistent performance and operator frustration. This replacement assembly is manufactured to match original specifications for fit, feel, and function. It includes all necessary components for a complete replacement. Installation may require access to the control panel and careful routing of linkages. Regular inspection helps identify wear before it affects controllability.
| Operator interface | Provides controls for machine functions |
|---|---|
| Mechanical linkage | Transmits operator input to machine |
| Function selection | Enables pressure and operational adjustments |
| Loose / sloppy feel | Controls have excessive play |
|---|---|
| Binding / sticking | Controls difficult to move |
| Broken components | Levers, knobs, or linkages broken |
| Lack of function | Control input has no effect |
Mechanical control assembly 0551520 is compatible with the following models. Verify fit using your equipment's parts diagram.
| Compatible Models |
|---|
| Advantage 400 |
| Advantage 500 |
| RentSpray 400 |
| SprayTech Airless Advantage EPX2155 |
| SprayTech Airless Advantage EPX2255 |
| SprayTech Airless EPX2155 |
| SprayTech Airless EPX2255 |
When replacing the mechanical control assembly, inspect these associated components to ensure proper machine operation.
Check for fraying, binding, or damage.
Replace bolts and nuts if corroded.
Inspect for cracks or damage.