Part number 0555222 is a Repacking Kit containing all necessary seals, packings, and O-rings required to rebuild the fluid section of compatible sprayer pumps. This kit restores pump performance by replacing worn components that cause pressure loss, surging, and leakage.
| Part Number | 0555222 |
|---|---|
| Part Description | Repacking Kit |
| Fits | Advantage GPX 220; Spraytech GPX 220 |
| Condition | New |
Part number 0555222 is a complete Repacking Kit for the fluid section of compatible GPX 220 series sprayer pumps. This comprehensive kit contains all the wearable sealing components that degrade over time due to friction, chemical exposure, and pressure cycling. It typically includes piston packings, throat seals, O-rings, backup rings, and other critical sealing elements required for a complete fluid section overhaul.
The piston packings are the primary seals that prevent fluid from leaking past the piston during the pressure stroke. As these packings wear, the pump loses efficiency, resulting in reduced pressure, surging output, and fluid bypass. Other seals in the kit prevent external leaks at the pump inlet, outlet, and various connection points.
Rebuilding the fluid section with this repacking kit is a standard maintenance procedure that restores the pump to like-new performance. It is significantly more economical than replacing the entire pump assembly and extends the service life of the equipment.
| Pressure Restoration | Replaces worn piston packings to eliminate internal bypass and restore full pressure |
|---|---|
| Leak Prevention | Installs new seals at all fluid connection points to stop external leaks |
| Performance Recovery | Eliminates surging and inconsistent flow caused by seal wear |
| Loss of Pressure | Unable to reach or maintain normal operating pressure |
|---|---|
| Fluid Surging | Pressure fluctuates during operation, causing uneven spray pattern |
| External Leaks | Fluid weeping or dripping from pump throat, manifold, or valve areas |
| Preventive Maintenance | Recommended after a specific number of operating hours or during annual service |
Part number 0555222 is specifically designed for the Advantage GPX 220 and Spraytech GPX 220 sprayer pumps. These models share the same fluid section design and utilize identical seal components. Always confirm fitment using the correct parts diagram for your exact pump model and serial number.
| Compatible Models | Component |
|---|---|
| Advantage GPX 220 | Repacking Kit |
| Spraytech GPX 220 |
When performing a complete pump overhaul, these related components are often inspected and replaced at the same time to ensure optimal performance and reliability.
The check valves work in conjunction with the piston packings. Worn valves can cause similar symptoms and should be rebuilt during a major service.
Inspect the piston rod for scoring, pitting, or wear. A damaged rod will quickly destroy new packings and may require replacement.
Check the cylinder bore for wear, scoring, or corrosion. Severe cylinder damage may necessitate pump replacement.
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