Note: Conventional claw jacks cannot automatically lower in a zero-weight environment (newer claw jacks have a spring-assisted retraction mechanism to help the jack piston return quickly). The top load is twice the claw load. If height permits, use the upper position whenever possible.
Note: Conventional claw jacks cannot automatically lower in a zero-weight environment (newer claw jacks have a spring-assisted retraction mechanism to...
When using a claw jack, first tighten the hydraulic valve bolts with the handle. Then, move the hand pump up and down to raise the jack. To lower it, ...