Construction Equipment Repairer Duty Descriptions

91L2O Construction Equipment Repairer
Performed field level maintenance on construction equipment which includes that used for earth moving, grading, and compaction; lifting and loading; quarrying and rock crushing; asphalt and concrete mixing, and surfacing; water pumping; air compression equipment; performed troubleshooting of engines, power trains, fuel and electrical systems, hydraulic systems, earth-moving components, and pneumatic equipment; supervised lower grade Soldiers and provided technical guidance to the Soldiers in the accomplishment of their duties.




91L Motor Sergeant
Serves as the Motor Sergeant in a Corps asset Multi-Role Bridge Company (MRBC), assigned to the 19th Engineer Battalion; responsible for the professional development, discipline, and training of five Noncommissioned Officers and 23 Soldiers; responsible to the Commander for the daily maintenance operation of over 400 pieces of wheel, bridge, engineer, and watercraft equipment; coordinates for the service and repair of 167 pacing items valued over $14,000,000; manages daily, weekly, monthly reports and supervises the shop stock; responsible for facilities, tools, equipment, and all Sets, Kits, and Outfits (SKO) valued in excess of $3,000,000.




91L20 Heavy Costruction Vehicle Repairer Mechanic
Serves as a heavy construction vehicle repairer mechanic in a Field Maintenance Team for an Engineer Forward Deployed Mobility Augmentation Company in support of the 20th Engineer Battalion; responsible for the accountability, serviceability, and maintenance of 47 pieces of equipment to include 3 RG-31A1, 14 RG-31A2, 2 MTV, 1 Forward Repair System, 3 M916A3, 3 M870A1 Trailers, 6 IVMMDs, 3 generators, 4 M984A4 Wreckers, 5 MATVs and 3 Buffalos valued at $8 million dollars; responsible for the combat readiness, training, health, welfare, discipline, and accountability of 7 Soldiers and their combat equipment.




Movement Supervisor
Supervises and performs field and sustained maintenance on tracked and wheeled vehicles, construction equipment, and special purpose equipment maintenance activities to include: power generation equipment, air conditioning/ refrigeration equipment and quartermaster and chemical equipment; performs as support maintenance machine shop supervisor or metal working supervisor; supervises recovery operations on tracked vehicles, wheeled vehicles and related activities including electrical wiring harness system repair/ maintenance.






91L30 Construction Equipment Repairers:

Supervises and performs unit, direct and general support maintenance on construction equipment which includes that used for earth moving, grading, and compaction; lifting and loading; quarrying and rock crushing; asphalt and concrete mixing, and surfacing; water pumping; air compression equipment; performs troubleshooting of engines, power trains, fuel and electrical systems, hydraulic systems, earth-moving components, and pneumatic equipment; supervises lower grade Soldiers and provides technical guidance to the Soldiers in the accomplishment of their duties.

Supervises lower grade soldiers and provides technical guidance to the soldiers in the accomplishment of their duties. Troubleshoots, repairs and overhauls engines, final drives, power trans, hydraulic systems, and fuel system components. Performs welding and cutting to accomplish repairs.



91L20 Duties performed by Soldiers in this MOS include:

Maintains unit direct and general support and replaces brake actuators, batteries, starter motors, alternators, mechanical fuel pumps, hydraulic cylinders/ pumps/ control valves, drive shafts, universal joints, service brake shoes, disc-brake pads, water pumps, turbochargers, cylinder heads, high-pressure fuel injection pumps, wheel bearings/ seals, steering unit torque link, and road wheels. Adjusts engine speed governor/ valves, carburetors, boom-hoist brakes/ clutches, dry-disc clutches, steering brakes, track tension/ assemblies, fuel injector racks, and steering unit brake levers; charges suspension accumulators, transmission shift accumulators, and main hydraulic accumulators.



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