Product Description
SPRING TORSION
Frequently Asked Questions
Q: What is the difference between the TO 00591-57750 and TO 00591-57750-81 torsion springs?
A: The TO 00591-57750-81 is a variant designation of the TO 00591-57750 torsion spring, typically reflecting a specific Toyota model year or mast assembly configuration. Both are OEM springs for Toyota electric lift trucks. Verify your exact truck model and year to ensure you order the correct variant.
Q: Does the TO 00591-57750-81 work on the same mast assemblies as the standard TO 00591-57750?
A: The -81 designation indicates this spring is designed for specific Toyota electric lift truck models or mast versions. Do not assume interchangeability. Confirm your truck model number and mast configuration match the TO 00591-57750-81 specifications before ordering.
Q: What are the spring rate and preload specifications for the TO 00591-57750-81?
A: The TO 00591-57750-81 torsion spring has specific spring rate and preload values that match Toyota mast assembly requirements. For exact specifications, contact our parts team with your truck model and serial number. Incorrect spring rate compromises mast balance and control.
Q: How long is the service life for the TO 00591-57750-81 torsion spring?
A: Under normal warehouse conditions, the TO 00591-57750-81 typically lasts 7 to 10 years. High-cycle operations (frequent mast raises and lowers) may reduce lifespan. Monitor mast control and drift during lowering. Replace the spring if performance degrades.
Q: What symptoms indicate the TO 00591-57750-81 spring has lost tension?
A: A weakened TO 00591-57750-81 spring causes mast drift-down (mast descends slowly when controls are released), sluggish raising speed, or mast oscillation during operation. These symptoms indicate spring fatigue and require replacement to restore safe mast control.