Product Description
CR 40225-2 is a Crown OEM hydraulic seal for manual pallet jack pump units. Engineered in nitrile rubber for use in Crown PT and PTH series hydraulic circuits. Replaces previous part numbers CR 40225 and CR 40225-003; fits PTH 50 hand jacks and compatible models. Provides reliable sealing under up to 3000 PSI system pressure for heavy-duty manual jack operation.
Compatibility: Fits pallet jacks made by Crown, model PTH 50. Alternate model: PTH50. SKU: CR 40225-2
Specifications
Dimensional
| Seal Thickness | 0.25 inch nominal |
Hydraulic
| Maximum System Pressure | Up to 3000 PSI (compatible with manual pallet jack hydraulic systems) |
Material
| Seal Material | Nitrile rubber compound (NBR), Shore A65 |
| Construction Details | Single-acting seal, vulcanized elastomer |
Part Numbers
| OEM Part Number | CR 40225-2 |
| Manufacturer Part Number | CR 40225-2 |
| Cross-Reference Part Numbers | CR 40225, CR 40225-003, CR 40225-7, CR 40225-9M, CR 40225-SM |
| Supersedes/Replaces | CR 40225, CR 40225-003 |
| Compatible Models | Crown PT, PTH, and PTH 50 manual pallet jacks |
Performance
| Working Duty Cycle | Manual operation, up to 100 lift/lower cycles per hour |
Frequently Asked Questions
Q: What Crown pallet jack models does the CR 40225-2 fit?
A: The CR 40225-2 is an OEM hydraulic seal engineered for Crown PT, PTH, and PTH 50 Series manual pallet jacks. This seal is designed for use in pump assemblies across the Crown manual jack product line rated for heavy-duty operation.
Q: What part numbers does the CR 40225-2 replace or cross-reference?
A: The CR 40225-2 supersedes CR 40225, CR 40225-003, CR 40225-7, CR 40225-9M, and CR 40225-SM. These legacy part numbers can be directly replaced with CR 40225-2. Cross-reference your existing part numbers to confirm compatibility before ordering.
Q: What is the maximum system pressure rating for this seal?
A: The CR 40225-2 is rated for up to 3000 PSI system pressure in Crown PT and PTH Series hydraulic circuits. This pressure rating applies to the pump unit sealing interface and supports heavy-duty manual jack operation without pressure loss.
Q: What material is the CR 40225-2 seal made from?
A: The CR 40225-2 is manufactured from hydraulic-grade nitrile rubber engineered for reliable sealing performance in manual pallet jack pump units. This elastomer material provides chemical compatibility and durability under continuous operating pressures.
Q: When should I replace the CR 40225-2 seal?
A: Replace CR 40225-2 seals when you observe hydraulic fluid leakage at the pump unit, loss of lifting pressure, or difficulty maintaining load. Hydraulic fluid discoloration, temperature rise, or visible corrosion on the pump body also indicates seal wear and replacement necessity.