AB-1386~U

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MAST AB-1386/U (NSN 5985-01-381-6341) (EIC:N/A) OPERATOR PMCS WITH ELECTRICAL EQUIPMENT MOUNTING MT-6967/G (NSN MT-6968/G (NSN 5975-01-390-9612) (EIC: N/A)

Total mast height is variable from 8.3 to 33.1 ft (2.5 to 10.1 m) with all mast sections fully deployed. Accessories are provided to assist with guying, anchoring, and operating the mast in its ground mount configuration. They include a hammer, a tripod, guy assemblies, guy stakes, baseplate stakes, crank handle, baseplate, and a radius rope.

Two mounting kits may be used to adapt the HMMWV and the tracked vehicle with brackets and hardware to deploy the mast. The mounting kits are used to anchor the mast to the vehicle and to stabilize the mast when deploying it under normal conditions (i.e., winds below 25 mph [40 kph]).

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Ab-1386-gearbox.png


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GearBox Rebuild

often these gearboxes are completely seized up, usually this is due to water intrusion and rust. It is perfectly repairable, you will need to disassemble it and figure out what is wrong.

Gear Box Images

=Disassembly

There are 6 hex head screws on the bottom of the box. Remove these screws and carefully pry the lid off. Be sure the equally lift from all side and work it off, so it doesnt jam on the shafts.



Additional Files

Adobe PDF icon.png TM 11-5985-426-12&P

OPERATOR'S AND UNIT MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST EQUIPMENT DATA
MAST AB-1386/U (NSN 5985-01-381-6341) (EIC:N/A)
OPERATOR PMCS WITH ELECTRICAL EQUIPMENT MOUNTING MT-6967/G (NSN MT-6968/G (NSN 5975-01-390-9612) (EIC: N/A)