HILL AIR FORCE BASE, Utah -- The 526th Electronic Maintenance Squadron reached a historic milestone as Airmen complete final repairs on two of the Air Force’s most recognizable munitions lift trucks: the MHU-83 and the MJ-1.
For decades, the rugged MJ-1, nicknamed the “Jammer,” has been the workhorse of the flight line, moving and positioning heavy munitions since the 1950s. Its successor, the MHU-83, introduced increased lifting capacity and hydraulic precision when it entered service in the 1970s. Together, the two vehicles have supported nearly every major U.S. Air Force aircraft weapons system for more than 50 years.
Depot-level repair of these trucks by the 526th EMXS was no small task.
Each overhaul included a complete teardown, blasting and painting of reusable parts, and reassembly with a new engine, hydraulic pumps, and hoses. Wheel bearings were replaced, new tires installed, and before leaving the shop, every truck was test driven and load tested.
Over the years, the squadron has produced more than 700 MJ-1 and MHU-83 bomb lifts.
Scott Wilson, 526th EMXS production superintendent, said the workload will be missed, noting that the squadron’s knowledgeable workforce has been producing the asset for 20 years.
With these final repairs, the last MHU-83 and MJ-1 will leave the depot, marking the end of an era at Hill Air Force Base and the unit shifts focus to other sustainment missions.
In addition to bomb lift trucks, the 526th EMXS continues to provide vital support to the Air Force and Army by repairing Basic Expeditionary Airfield Resources, or BEAR, generators, Army MEP-810 generators, and launch facility and launch control center generators.
The unit also overhauls diesel engines, alternators and electric motors, and manufactures new test cables and wire harnesses.
Its fabrication shop produces everything from complex aircraft parts to support equipment, helping the squadron remain a cornerstone of sustainment operations at Hill AFB. The 526th EMXS additionally overhauls aircraft generators, radomes, towers, and shelters.