Product Description
Seal
Frequently Asked Questions
Q: What equipment does the CR 87412 seal fit and what is its function?
A: The CR 87412 is a seal component for Crown electric lift truck hydraulic or pneumatic systems. Seals prevent fluid or air leakage at pump shafts, motor shafts, or valve connections. This specific seal is engineered for Crown equipment and typical warehouse temperatures and pressures. Verify your equipment type and the sealed component before ordering.
Q: What Crown electric lift truck models use the CR 87412 seal?
A: The CR 87412 seal is compatible with multiple Crown electric pallet jack and reach truck models, but the exact applications depend on whether it seals a pump inlet, motor shaft, or valve assembly. Confirm your truck model, serial number, and the specific component location to ensure you order the correct seal specification.
Q: What materials is the CR 87412 seal made from?
A: The CR 87412 seal uses elastomer materials such as nitrile rubber or EPDM rubber selected for compatibility with hydraulic fluid or compressed air. The seal body resists temperature swings common in warehouses and maintains elasticity under cyclic pressure changes. Material selection ensures the seal does not degrade when exposed to the specific fluid or air pressure of Crown equipment.
Q: What are the signs that the CR 87412 seal needs replacement?
A: Replace the seal if you notice fluid leakage around the sealed shaft or connection, a drop in hydraulic pressure or air pressure, or visible cracks in the seal material. Contaminated hydraulic fluid or persistent air loss indicates seal failure. Do not delay replacement because continued leakage can damage downstream components and reduce equipment performance.
Q: How often should the CR 87412 seal be replaced in normal service?
A: The CR 87412 seal lifespan depends on operating pressure, temperature, and fluid contamination. Typically, seals in warehouse environments last 3 to 5 years before rubber elasticity degrades and leakage begins. Replace seals proactively during major equipment service to prevent unexpected failures. Contaminated hydraulic fluid or air shortens seal life significantly.