Product Description
Wesco WE A305 U-cup hydraulic seal for manual pallet jacks, designed to ensure reliable hydraulic cylinder performance by preventing fluid bypass. Technical application details must be confirmed directly with manufacturer for critical specifications (bore, pressure, material grade).
Compatibility: Fits pallet jacks made by Wesco, model CPI. SKU: WE A305
Specifications
Electrical
| Voltage | Not applicable |
Material & Construction
| Steel Grade | Not applicable (non-metallic seal) |
Part Numbers
| OEM Part Number | WE A305 |
Performance
| Flow Capacity | Not applicable |
Frequently Asked Questions
Q: What is a U-cup hydraulic seal and why does the WE A305 matter?
A: The WE A305 is a U-cup seal that prevents hydraulic fluid from bypassing the piston during compression and extension cycles. It maintains system pressure and ensures the pallet jack lifts and lowers predictably. Without this seal, the hydraulic cylinder loses pressure and becomes inoperative.
Q: Which pallet jacks does the WE A305 fit?
A: The WE A305 is a factory OEM seal for Wesco CPI series manual pallet jacks. Match your equipment model and serial range to CPI specification. Technical application details including bore size and pressure rating should be confirmed with the manufacturer for critical installations.
Q: What material is the WE A305 made from?
A: The WE A305 is a non-metallic elastomer seal compound, typically nitrile or similar synthetic rubber, selected for compatibility with mineral hydraulic oils used in manual pallet jacks. This material resists fluid absorption and maintains flexibility across normal operating temperatures.
Q: What symptoms indicate the WE A305 needs replacement?
A: Replace the WE A305 if the pallet jack fails to hold a load at height, descends slowly on its own, requires multiple pump strokes to maintain pressure, or shows external hydraulic leaks at the cylinder. These indicate internal seal failure or fluid bypass.
Q: What bore sizes and pressure ratings does the WE A305 support?
A: The WE A305 U-cup is engineered for standard Wesco CPI hydraulic cylinders. Confirm bore diameter, rod diameter, and operating pressure limits by cross-referencing your pallet jack model documentation or contacting the manufacturer. Using incorrect bore or pressure specifications will cause premature failure.