622-1207

Frequently Asked Questions

Q: What is the material specification for spring 622-1207?
A: The 622-1207 is manufactured from high-carbon spring steel per SAE 1070 to 1095 specification. This material provides the fatigue resistance and return force needed for electric lift truck handle assemblies operating under continuous duty.

Q: What are the hardness and coil specifications of the 622-1207?
A: The 622-1207 has a Rockwell hardness rating of C47 to C52 and features 14 total coils. The spring is mechanically polished to prevent corrosion and ensure consistent return force over its service life.

Q: What is the function of the 622-1207 spring in an electric lift truck handle?
A: The 622-1207 is a handle return compression spring that restores the control handle to its neutral or at-rest position after the operator releases it. This spring works with the handle assembly to ensure positive feedback and safe control during lift truck operation.

Q: Which electric lift truck models use the 622-1207 spring?
A: The 622-1207 is compatible with select electric lift truck models from Crown, Toyota, Raymond, Yale, Hyster, and other OEM brands that use OEM part number 622-1207 in their handle assemblies. Verify your equipment model and serial range before ordering.

Q: What is the typical lifespan of a handle return spring in electric lift truck service?
A: Handle return springs like the 622-1207 typically last 3 to 5 years or 2000 to 4000 operational cycles in electric lift truck service. Signs of spring fatigue include sluggish handle return, incomplete repositioning, or creaking during handle movement.

Q: How does the SAE 1070-1095 steel affect durability compared to standard spring steel?
A: High-carbon SAE 1070 to 1095 spring steel offers superior fatigue resistance, higher yield strength, and better return consistency than low-carbon alternatives. This specification ensures the 622-1207 maintains consistent restoring force throughout its service life without permanent deformation.