Tronair - Cylinder Seal Kit | K-1049
Something's broke and it needs fixing. It happens. Repairs are in order. Rather than throw the item away you can make it good as new.
The K-1049 is designed as a replacement item for the following 5 Ton Tripod Jacks: Part Numbers 02-0566-0110 and 02-7856-0100. To be sure, however, please refer to the manual of your specific unit to see if the K-1049 is right for you.