I MUST state that I built this for MY convenience. IF you decide to copy any or all of it, I accept NO responsibility for your actions. (Thought I would add this as it seems to be the way to go these days!) Again, on the safety angle, the unit was only ever made for working on a good flat level surface. As with any piece of equipment, WORK SAFELY!!Reg & Marg Ingold.
A few points to remember. The hook MUST hang inside the wheelbase or it will tip up and you can bet your toes or similar will be in the way. The sizes I used are to allow me to move stuff in MY shop. They can be changed to suit other requirements. The unit comes apart easily to allow it to be transported to help recover a new toy. The hydraulic ram hand pump unit is as used on our concrete trucks on the rear chute. It is double acting and is a really top unit. I believe they are made here in Oz. I got mine from DAVCRON ENGINEERING. 5 Tennyson St.Granville.NSW.2142.
They carry spares for them too. No doubt there are similar units that will do the job. The multiple holes under the jib are to allow the ram to have as easy a life as possible. The small castor wheel is off a shopping trolley. It does the job well as there is no real load on it. Again, on the safety angle, the unit was only ever made for working on a good flat level surface.