Turning the hydraulic pump valves too quickly will
allow the dolly set to drop rapidly, possibly causing
damage to the dolly set and/or injury to the operating
Crew should stand clear of dolly set during lowering
Slowly close all four hydraulic pump valves by turning handles (1) clockwise to PUMP position
Adapter arms must remain vertical until contact is
made with the ground. If adapter arms are tilted, the
sides are not being lowered at the same rate.
Each crewman should loosen his strut assembly by unscrewing clamps (5). Carefully, with hands and fingers
away from struts (2), pump hydraulic pump levers (3) until cylinders open strut knee joints at pivot points (4).
Apply hand pressure on the inside of pivot point (4) to open struts, being extremely careful not to allow
fingers in a potential "pinch" point. The struts (2) must break open at this point.
Pushing the safety pins from the strut assemblies
using the fingers should not be attempted under any
circumstances as the fingers could be severed if the
strut released with a finger in the pin hole.
An alternate method to break the strut can be accomplished by applying hydraulic pressure to cylinders that
will remove pressure from the pins (6). DO NOT ATTEMPT TO PUSH OUT SAFETY PINS WITH