Product Description
Piston spring
Frequently Asked Questions
Q: What forklift models use the 13819 piston spring?
A: The 13819 piston spring is a replacement component for hydraulic systems in Crown, Toyota, Raymond, Hyster, and Jungheinrich forklifts. It controls piston movement and pressure regulation in lift cylinders. Confirm your cylinder bore size and rod diameter match before ordering.
Q: What material is the 13819 piston spring made from?
A: The 13819 is manufactured from hardened steel wire with a protective finish to resist corrosion in hydraulic fluid environments. The spring rate is calibrated to specific pressure tolerances required for lift cylinder operation. Do not substitute springs of different wire diameter or coil count.
Q: How does a worn piston spring affect forklift performance?
A: A failed or weakened 13819 spring causes sluggish lift response, inadequate load holding pressure, and possible uncontrolled descent under load. Hydraulic pressure relief valves cannot compensate for a weak spring. Replacement restores proper pressure balance and load stability.
Q: What is the service life of the 13819 piston spring?
A: Under normal operating conditions, a piston spring typically lasts 5 to 8 years. Higher cycle rates, extreme temperatures, or contaminated hydraulic fluid accelerate spring fatigue. Preventive replacement during major hydraulic overhauls extends equipment reliability.
Q: Can the 13819 spring be used with different hydraulic fluid types?
A: The 13819 is compatible with standard ISO VG 46 hydraulic oils and biodegradable fluids used in material handling. Do not mix hydraulic fluid types in the system. Verify your equipment documentation before switching fluid types, as incompatibility can damage seals and shorten component life.