The PAM main components are inner and outer square tubes,friction clutch and clamp for holding the mast. The outer square tube is used to mount the assembly to the shelter wall of the roof of the transport vehicle. The inner square tube is connected to the mast clamp by a spring loaded friction clutch and is extended or retracted by means of roller wheels. The outboard and inboard movement of the inter square tube is contained by a spring loaded retaining catch and a screw lock. Rotation of the mast is resisted by a spring loaded friction clutch. Ideally, force must be applied to rotate the mast.
Click here for link to PAM and MECPAM datasheet (pdf 548 KB).
