Valve cartridge for Yale YA55-PT manual pallet jack
YL 550090846
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Compatibility
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Product Description
The 550090846 is a direct replacement valve cartridge designed for Yale YA55-PT manual pallet jacks equipped with Type Y hydraulic pump assemblies. This precision-machined steel component provides reliable hydraulic control for smooth lifting and lowering operations. Compatible with nitrile and polyurethane seals, it delivers consistent performance under continuous manual pump duty cycles.
Specifications
Part Numbers & Compatibility
| Make | Yale |
| Model | YA55-PT |
| Seal Compatibility | Utilizes OEM nitrile and polyurethane seals—reference part number 550090845 |
| Part Number | YL 550090846 |
| Manufacturer Part Number | 550090846 |
| Model Compatibility | Compatible with Yale YA55-PT manual pallet jack |
Additional Specifications
| Surface Finish | Machined steel, bright finish per manufacturer hydraulic specification |
| Seal Material | Nitrile rubber (NBR), polyurethane (PU) |
| Cycle Rate | Rated for manual pallet truck pump duty—maximum 120 cycles per hour continuous use |
Frequently Asked Questions
Q: What is the YL 550090846 and what does it do?
A: The YL 550090846 is a replacement valve cartridge for hydraulic pump assemblies in Yale manual pallet jacks. It provides precise control over hydraulic flow and pressure during lifting and lowering operations.
Q: Which Yale manual pallet jack models is this valve cartridge compatible with?
A: The YL 550090846 is compatible with Yale YA55-PT series manual pallet jacks that have type y hydraulic pump assemblies. Confirm your pump assembly type matches before ordering.
Q: What materials is the valve cartridge made from?
A: The valve cartridge is constructed from steel and features a bright finish to meet manufacturer specifications. It is designed for durability in hydraulic systems.
Q: What seals are compatible with this valve cartridge?
A: The YL 550090846 uses nitrile and polyurethane seals. Reference seal kit part number yl 550090845 for compatible seal assemblies.
Q: How do I replace the valve cartridge?
A: The YL 550090846 is press-fit into the lever plate cavity of the type y hydraulic pump assembly. It is designed for secure installation without additional fasteners.
Q: What should I consider before replacing the valve cartridge?
A: Ensure your Yale manual pallet jack model is compatible with the YL 550090846. Verify your pump assembly type matches before ordering.