Hydrax part 2403440A is a complete fluid section assembly for Hydrax 4540-7230 sprayers. This assembly includes all internal components that pressurize and deliver paint: intake and discharge valves, piston packings, cylinders, and seals. Replace a worn, leaking, or damaged fluid section to restore pump performance, pressure stability, and spraying efficiency.
| Part Number | 2403440A |
|---|---|
| Part Description | Fluid Section Assembly |
| Brand | Hydrax |
| Fits | Hydrax 4540-7230 |
| Condition | New |
The 2403440A fluid section assembly is the heart of the pumping system on Hydrax 4540-7230 sprayers. This pre-assembled unit contains all the critical wear components that draw paint from the container, pressurize it, and deliver it to the hose: intake and discharge valves, piston packings, cylinder, and associated seals.
Over time, normal wear from abrasion, chemical exposure, and continuous operation degrades packings, valves, and seals. Symptoms include loss of pressure, surging, leaking, or failure to prime. Replacing the complete fluid section assembly restores the pump to like-new performance without the need for individual part identification and assembly, saving time and ensuring all components are matched for optimal operation.
| Fluid intake | Draws paint from container through inlet valve |
|---|---|
| Pressurization | Piston and packings compress fluid to working pressure |
| Fluid delivery | Discharge valve releases pressurized paint to hose |
| Low / surging pressure | Unable to maintain consistent spray pressure |
|---|---|
| External leaks | Paint seeping from pump area |
| Poor priming | Pump fails to draw paint or loses prime repeatedly |
| Excessive wear | High hours of use; preventative replacement recommended |
Part 2403440A is specifically designed for the Hydrax 4540-7230 sprayer. Always verify fitment by consulting your machine's parts manual.
| Model | Component |
|---|---|
| Hydrax 4540-7230 | Fluid section assembly |
When replacing the fluid section, inspect these associated components to ensure complete system reliability.
A clogged or damaged siphon hose can affect priming; inspect and replace if necessary.
Check for wear in the drive mechanism that operates the piston.
Ensure filters and valves upstream are clean and functioning.
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