Abstract: A vehicle for manipulating large diameter pipe includes a vehicle frame assembly which supports an auxiliary pipelayer frame. The pipelayer frame supports various components for manipulating the pipe, including a boom arm and a fluid cylinder for raising and lowering the boom arm. During transportation of the vehicle, certain components must be removed from the vehicle to make the vehicle conform to width and height restrictions. Normally, the boom arm and the fluid cylinder would be removed. The subject invention provides for storage of the fluid cylinder on the vehicle during transportation, without the necessity to disconnect fluid lines. Considerable time and effort is saved during dis-assembly and re-assembly of the vehicle components.

Abstract: In a lift arm structure for a bucket, for instance on a loader-type vehicle, a service support is provided to block the lift arm in the extended position during servicing and repairing either of the lift arm structure or of parts in close proximity to the lift arm structure. The service support is U-shaped in configuration so as to straddle the rod of the lift cylinder when said lift cylinder is substantially completely extended. Pads are provided on the end of the service support to contact the mounting bracket for better distribution of the loads on the service support. Attachment members are mounted on the service support and engage a plate assembly bridging the open space between the sides of the service support so that with the service support in position on an extended cylinder rod, the attachment members and plate assembly lock the service support on the cylinder rod.