Overview

DX Engineering Mastlock Tower Accessory

The DX Engineering Mastlock Tower Accessory is very helpful tool for use on ROHN and Amerite Towers in the 25, 45 and 55 series. Using this hardware combination of DX Engineering V-Bolts and our specially drilled aluminum plate, you'll be able to lock your 2 to 3 in. tower mast into position. This tool keeps the mast slipping downward, allowing rotator removal for service, and it prevents the mast from turning during tower or antenna maintenance.

The purchase and use of two DXE-MASTLOCK assemblies is suggested for locking a top-heavy mast into the center of the tower. This is especially helpful for heavily loaded masts that have most of their length above the top of the tower. Without much mast below the top, there is a lot of torque and side force trying to push the mast askew. Two of the DXE-MASTLOCK will keep that mast right in place while work is done on the mast or rotator. This accessory will work on mast tube, as well as flat top towers with thrust bearings—and can prevent accidental damage to the tower and accessories during maintenance.

The DXE-MASTLOCK plate is made from 0.250 in. thick 6061-T6 aluminum. It comes with the proven high-quality DX Engineering V-saddle clamps, sized for 2 to 3 in. masts and tower legs from 1.250 to 1.500 in..

NOTE: As with all stainless steel hardware, a good quality anti-seize, such as Jet-Lube SS-30 (part number JTL-12555), must be used to avoid galling. When installing the DXE-MASTLOCK, be sure to tighten all bolts evenly.

Documentation