Product Description
Dayton WW 97-155 is a pump valve assembly designed for manual pallet jacks, providing hydraulic load raising and release functions. OEM part number 97-155, cross-referenced with Grainger 4YX97. Compatible with Dayton pallet jacks. Dimensional data available; other mechanical, hydraulic, and material specifications not detailed in manufacturer or approved distributor sources.
Specifications
Certification
| Certifications | Excluded per requirements |
Part Numbers
| OEM Part Number | 97-155 |
| Cross-Reference Part Numbers | Compatible with Dayton Mfr. Model Number: 97-155; Grainger Part Number: 4YX97; see notes |
Frequently Asked Questions
Q: What function does the WW 97-155 pump valve assembly perform?
A: The WW 97-155 is a pump valve assembly that controls hydraulic load raising and release functions in manual pallet jacks. It directs flow from the pump to the lift cylinder and manages pressure relief during operation.
Q: What Dayton equipment models use the WW 97-155?
A: The WW 97-155 is compatible with Dayton manual pallet jacks, including the 4YX97 series. It is cross-referenced with Grainger part number 4YX97. Verify your specific jack model before ordering.
Q: Is the WW 97-155 a direct OEM replacement?
A: Yes, the WW 97-155 is an OEM replacement component with manufacturer part number 97-155. It is engineered to match original Dayton specifications for manual pallet jack pump valve assemblies.
Q: What symptoms indicate pump valve failure requiring WW 97-155 replacement?
A: Jack fails to raise load, raises slowly even with repeated pump strokes, oil leaks from the pump area, or load cannot be held and drifts down. These symptoms suggest valve malfunction or internal leakage.
Q: What is the typical lifespan of the WW 97-155 pump valve?
A: Lifespan depends on usage frequency and maintenance. Regular hydraulic oil changes and contamination control extend valve life. Failure typically occurs after extended heavy use, manifesting as loss of pressure control or flow restriction.