Product Description
Valu-Jack VJ 55F148 is a flat washer designed for use in the pump piston assembly of Valu-Jack 5500-2 manual pallet jack hydraulic units. Manufactured to provide axial load distribution and hydraulic seal retention, the washer is typically composed of plain carbon steel and is compatible with other components in the hydraulic unit such as the pump piston, spring, and wiper.
Compatibility: Fits pallet jacks made by Valu-Jack, model 5500-2 Hydraulic Unit. Alternate model: 55002 Hydraulic Unit; 5500 2 Hydraulic Unit. SKU: VJ 55F148
Specifications
Material & Construction
| Material Specification | Carbon steel (generic for washer used in hydraulic applications) |
| Finish | Plain steel, no external coating specified |
Part Numbers
| Manufacturer Part Number | VJ 55F148 |
| OEM Part Number | VJ 55F148 |
| Compatible Models | Valu-Jack 5500-2 manual pallet jack hydraulic unit |
Frequently Asked Questions
Q: What is the function of the VJ 55F148 flat washer in a pallet jack hydraulic unit?
A: The VJ 55F148 distributes axial loads and provides hydraulic seal retention in the pump piston assembly. It maintains proper spacing between the piston, spring, wiper, and other components, prevents component migration, and ensures seals remain properly compressed during pump operation.
Q: Which Valu-Jack models use the VJ 55F148 flat washer?
A: The VJ 55F148 is designed for Valu-Jack model 5500-2 Hydraulic Unit, with alternate designations 55002 Hydraulic Unit and 5500 2 Hydraulic Unit. Confirm your hydraulic unit model before ordering.
Q: What material and finish does the VJ 55F148 have?
A: The VJ 55F148 is manufactured from carbon steel in a plain steel finish with no external coating. This material composition is standard for washers used in hydraulic applications and provides cost-effective load distribution while withstanding pump pressures and fluid exposure.
Q: Can the VJ 55F148 washer be replaced individually or must it be ordered as part of a kit?
A: The VJ 55F148 is available as a standalone component. Technicians order it individually when only the washer requires replacement. However, when disassembling the pump piston assembly for maintenance, consider ordering complete hydraulic seal kits that include the washer and all related sealing components.
Q: What happens if the VJ 55F148 washer is missing or damaged?
A: A missing or damaged washer can allow seal components to shift or become misaligned during pump operation, resulting in loss of hydraulic pressure, slower lifting response, and internal leakage from the pump assembly. The pallet jack will not function reliably until the washer is replaced.
Q: Is the VJ 55F148 compatible with other pallet jack brands?
A: The VJ 55F148 is specified for Valu-Jack 5500-2 hydraulic units only. While it is a standard carbon steel washer, it is certified only for Valu-Jack compatibility. Verify bore fit and spacing requirements before use in other brands or models.