TM 9-6695-27-14
Section II. DESCRIPTION
cation for ease of reading. When an item is peculiar to
1-4.
General. This section contains a description
the AN/GSM-287 only, the AN/GSM-287 will be used.
of the AN/GSM-286 and the expansible van interior.
The AN/GSM-287 requires two expansible vans in the
Functional and operational instructions for the vehicle
mobile configuration.
are contained in TM 9-2320-260-10. Operating and
maintenance instructions for the power gate are
(2) The components of the AN/GSM-286
contained in the manufacturer's manual.
are secured in shock mounted racks that provide shock
1-5.
Expansible Van Description
the curbside. Nonelectrical equipment is calibrated on
the street side of the work bench. Figure 1-4 depicts the
a. Electrical Description. The expansible
mounting plate for torque wrench calibrators.
van is wired to provide 208 volts ac, 400 Hz 3 phase; 120
volts ac, 400 Hz single phase; and 120 volts ac, 60 Hz
Table 1-1. AN/GSM-286 Subset 7917000
Identification
b.
Work Bench and Equipment Racks. The work
Nomenclature
Part number
bench top consists of four sections of 1-inch plywood
AN/GSM-286: Electronic
7917002
covered with formica. These sections are bolted to a
three-section metal frame. The metal frame is bolted
AN/GSM-286: Physical
7917003
to the storage cabinets. The storage cabinets are bolted
AN/GSM-286: Repair
7917004
to the floor of the van. The equipment racks are secured
AN/GSM-286: Equipment
7915899
to shock mounts which are bolted to the work bench top.
Mounting Assembly
1-6.
AN/GSM-286/287 Description
Table 1-2. AN/GSM-287 Subset 7917001
a. Functional Description. AN/GSM-286 is a
Identification
mobile laboratory designed and configured to make
fundamental measurements in the direct current and low
Nomenclature
Part number
frequency (DCLF), physical, and repair parameters of
AN/GSM-287: Microwave
7917005
test,
measurement,
and
diagnostic
AN/GSM-287: Electronic
7917006
equipment(TMDE).The AN/GSM-286/287 and subset
AN/GSM-287: Physical
7917007
nomenclatures and part numbers are listed in tables 1-1
AN/GSM-287: Equipment
7915900
and 1-2. The AN/GSM-286 can be mounted in one
Mounting Assembly
expansible van. The normal tactical vehicle is the
M820A2.This vehicle is authorized as a separate item.
c. AN/GSM-286 Contents. The location and
quantity of standards and accessories contained in the
b.
Physical Description
AN/GSM-286 are listed in tables 1-3, 1-4, and 1-5, and
(1) TheAN/GSM-287Calibration
Set,
Secondary Transfer, consists of the AN/GSM-286
Transfer Set with additional equipment for microwave
d.
AN/GSM-287 Contents. The
location and
capability and additional physical and electronic
quantity of additional standards and
accessories
standards. Since the AN/GSM-287 is an expanded
contained in the augmented AN/GSM-287
are listed in
AN/GSM-286, the AN/GSM-286 is used in this publi-
tables 1-6, 1-7, 1-8, and shown in figures
1-2