Crown Hydraulic Seal Kit for PTH-50 Pallet Jacks
CR 44648
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Compatibility
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Visit our diagram page for part references to popular models
Product Description
The 44648 is a complete hydraulic seal kit engineered for Crown PTH-50 manual pallet jacks. This precision-molded seal assembly restores pump performance and eliminates costly hydraulic leaks. The kit includes nitrile and polymer seals sized for hydraulic cylinders, pistons, and valve applications, delivering reliable pressure containment in demanding warehouse and dock environments.
Specifications
Part Numbers & Compatibility
| Make | Crown |
| Model | PTH50 |
| Manufacturer Part Number | 44648 |
| Compatible Equipment | Crown PTH-50 manual pallet jack, Serial #7-000000 through 7-512501 |
| Alternate Model Designations | PTH50, PTH 50 |
Cylinder Dimensions
| Rod Diameter | 0.625 inch |
Performance Specifications
| Hydraulic Pressure Rating | 2900 PSI maximum hydraulic system pressure |
Seal Specifications
| Seal Materials | Nitrile rubber and polymer blend |
| Seal Hardness | 70 Shore A (nitrile components) |
Frequently Asked Questions
Q: What models is the CR 44648 compatible with?
A: The CR 44648 is compatible with Crown PTH-50 manual pallet jacks. Always verify your equipment model before ordering to ensure proper fit.
Q: What materials are used in the CR 44648?
A: The CR 44648 contains nitrile rubber and polymer blend seals with a Shore A hardness rating of 70. This material composition delivers excellent resistance to hydraulic fluid, temperature extremes, and the pressure cycling typical of manual pallet jack service.
Q: When should I replace hydraulic seals?
A: Hydraulic seals degrade over time due to pressure cycling, temperature exposure, and fluid contact. Common signs of seal failure include visible oil leaks around the cylinder rod, reduced lift speed, or inability to maintain load. Replacing seals with the CR 44648 restores system integrity and prevents further damage to pump and cylinder components.
Q: What is the CR 44648 used for?
A: The CR 44648 is a complete hydraulic seal kit designed to restore pump performance and eliminate costly hydraulic leaks in Crown PTH-50 manual pallet jacks.
Q: What are the benefits of using the CR 44648?
A: The CR 44648 provides reliable pressure containment in demanding warehouse and dock environments. It includes precision-molded nitrile and polymer seals for hydraulic cylinders, pistons, and valve applications.