i have a home made grapple question. i have a new 2" diameter by 8" push hydraulic cylinder. i want to measure the opening distance of my grapple before i install the hydraulic lines. question:? can i extend the hydraulic ram cylinder with out the hydraulic lines attatched? in other words, if i open the in/out ports, can i pull the cylinder out with out damage? thank you for any thoughts and help. mark