Part No. 140-501 is a major pump service kit designed to restore full operating performance of compatible Speeflo Commander air powered airless sprayers. The kit includes critical wear components required to rebuild the pump and correct pressure loss, leakage, or inconsistent output. It is made up of One Minor service kit with Part No. 140-052 (which contains Upper packing set, o-ring, Lower packing set, ball, two gasket), One Cylinder (with Part No. 140-922) and One Rod displacement (with Part No. 138-917)
| Part Number | 140-501 |
|---|---|
| Part Description | Major Pump Service Kit |
| Function | Complete pump rebuild / performance restoration |
| Fits | Speeflo Commander Air Powered Airless Sprayer |
| Condition | New |
The 140-501 Major Pump Service Kit is engineered for comprehensive pump maintenance on the Speeflo Commander air powered airless sprayer. This kit replaces primary wear components within the pump, restoring pressure consistency, sealing integrity, and overall spray performance.
Over time, packings, seals, and internal wear parts degrade due to high-pressure operation and abrasive coatings. Installing a major service kit addresses internal leakage, pressure drop, and erratic spraying caused by normal pump wear.
| Pump sealing | Restores internal sealing and pressure retention |
|---|---|
| Wear correction | Replaces worn packings and sealing components |
| Performance recovery | Returns pump to proper operating condition |
| Pressure loss | Pump will not maintain consistent pressure |
|---|---|
| Internal leakage | Material bypass or output fluctuation |
| Excessive wear | Visible damage to packings or seals |
| Scheduled service | During full pump overhaul or rebuild |
Part 140-501 is compatible with the following air powered airless sprayer. Always verify pump configuration using the appropriate service manual.
| Sprayer Model | Component |
|---|---|
| Speeflo Commander Air Powered Airless Sprayer | Major pump service kit |
Major pump service is often paired with inspection of other air and fluid components.
Excessive wear can accelerate packing failure.
Valve wear can cause pressure instability.
Proper sealing is critical after a pump rebuild.
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