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Note: This MOS no longer exists. The information below is maintained here for historical purposes, only.

Major duties. The heavy-wheel vehicle mechanic performs unit maintenance on heavy-wheel vehicles (prime movers designated as more than 5 tons and their associated trailers) and material handling equipment.

    (1) Skill Level 1. Maintains compression ignition engines, compression ignition engine fuel systems, compression ignition air induction systems, wheel vehicle exhaust systems, vehicle liquid cooling systems, vehicle starting systems, vehicle charging systems, wheel chassis electrical systems, standard transmission assemblies, automotive transmission assemblies, air-controlled semi-automatic transmission assemblies, transfer assemblies, propeller shaft assemblies, axle assemblies, drum brake systems, hydraulic brake systems, air/hydraulic brake systems, air (wedge, s-cam) brake systems, mechanical brake systems, wheel vehicle suspension systems, wheel vehicle wheel/hub assemblies, wheel vehicle hydraulic (power) steering systems, fifth wheel assemblies, wheel vehicle crane/hoist/winch assemblies, and material handling equipment hydraulic systems.

    (2) Skill Level 2. Performs duties in preceding skill level, supervises lower grade soldiers and provides technical guidance to the soldiers in the accomplishment of their duties.

Physical demands rating and qualifications for initial award of MOS. Heavy-wheel vehicle mechanics must possess the following qualifications:

    (1) A physical demands rating, of very heavy.

    (2) A physical profile, of 222222.

    (3) Normal color vision.

    (4) A minimum score, of 105 in aptitude area MM.

    (5) Current equipment qualification record for all types of equipment maintained.

    (6) Formal training (completion of MOS 63S course conducted under the auspices of the USA Ordnance Center and School) mandatory.

Additional skill identifiers

    (1) HS--Recovery Operations.

    (2) P5--Master Fitness Trainer,

    (3) 4A--Reclassification Training.

Training/School Information

    Information derived from Army Pamplet 611-21

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