1 January 2005
with change 25 October 2006
AReA MAIntenAnCe sUPPORt ACtIVItY (AMsA)
4-5.1.1 The ancillary shop areas for AMSA, such as the shop offices, tool rooms,
flammable storage, battery rooms, mechanical rooms, custodial areas and workbays
are similar to those of OMS in functional requirements; therefore, refer to the OMS
individual space criteria in Section 4-3 above for these AMSA spaces.
4-5.1.2 An AMSA, due to its full-time staff and maintenance mission, is also
authorized spaces and equipment not found in an OMS. These additional spaces are
4-5.2.1 There is one major difference between the OMS and AMSA (or DS/GS)
workbays: an AMSA (or DS/GS) is authorized a crane. The crane typically covers the
majority of workbays; it may not cover them entirely, but covers the bulk of the
4-5.2.2 The typical crane is a 7.5 ton (6.8 metric ton), single-girder, top-running crane,
equipped with a low-headroom, bottom-running trolley with a wire rope hoist. Structural
columns with a supporting haunch must be strategically placed to support the crane
girder and rail, which supports the bridge crane. The maximum span of the bridge crane
itself will be 60 ft (18,000 mm). It is not economically feasible to span the entire 80 ft
(24,000 mm) width of the building. Verify clear hook height required with the Tenants,
based on the equipment they service. \ Note that this lift height will be limited to a
maximum of 18 ft (5,400 mm) for the standard structural eave height of 24 ft
(7,200 mm)./2/ Some units servicing heavier equipment may require a crane with a
larger lifting capacity.
4-5.2.3 The crane will be Class C, moderate service CMAA Duty Classification.
Provide push button pendant \ control station with strain-reliever chain or cable
permanently attached to the hoist frame and integral with pendant conductor cable /2/.
Minimum and maximum speeds: hoist 15 fpm (.076 m/s) and 25 fpm (.127 m/s); trolley
45 fpm (.229 m/s) and 75 fpm (.381 m/s); and bridge 75 fpm (.381 m/s) and 150 fpm
(.762 m/s). Provide warning horn and light when crane is in motion, and warning alarm
and light when crane malfunctions or is overloaded.
4-5.2.4 Space Design Information see OMS workbays, Section 4-3.9 above. See
4-3.9.4 if welding is authorized.
Small Arms Shop and Vault
4-5.3.1 The shop and vault provide space for the repair and storage of small arms
such as rifles, machine guns, grenade launchers, etc. The shop should be located
adjacent to the arms vault with access to the vault through the shop, similar to the