Product Description
SPRING CAP
Frequently Asked Questions
Q: What is the 00591-43244-81 spring cap used for?
A: The 00591-43244-81 is a spring cap assembly for manual pallet jack pump cylinders. It seats on top of the pressure relief valve stem and contains the spring mechanism that controls pump pressure. This part maintains proper hydraulic system function during load handling.
Q: What equipment models is the 00591-43244-81 compatible with?
A: This spring cap fits manual pallet jacks from Crown, Toyota, Raymond, Yale, Hyster, and Jungheinrich. Verify that your pump cylinder has a matching pressure relief valve stem before ordering. Compatibility depends on the cylinder assembly revision.
Q: What material is the 00591-43244-81 made from?
A: The spring cap is constructed from ductile iron with a hardened steel spring insert. Ductile iron provides wear resistance and durability in high-cycle hydraulic environments. The spring maintains consistent pressure calibration under repeated use.
Q: How long does the 00591-43244-81 spring cap typically last?
A: Under normal warehouse conditions, this spring cap lasts 3 to 5 years. Lifespan depends on pump cycle frequency and hydraulic fluid condition. Replace if the jack loses pressure hold or you observe fluid leakage around the cap. A weakened spring may indicate the unit needs replacement.
Q: Are there equivalent part numbers for the 00591-43244-81?
A: Cross-reference this part with aftermarket suppliers for equivalent spring cap assemblies. Verify the pressure relief valve stem diameter and cap bore size match before substituting. Some OEM pump cylinders use sealed cartridge designs that are not compatible with this cap.