SERVICE UPON RECEIPT AND OPERATING INSTRUCTIONS
Section I. SERVICE UPON RECEIPT OF THE AN/GSM-286
the preliminary operating procedures and the various
2-1. General. When an AN/GSM-286/287 is received
controls and indicators on each instrument before putting
at the using organization, it is the responsibility of the
the individual standards into operation. All preliminary
officer in charge to determine whether the material has
been properly prepared for service by the supplying
vehicle are contained in TM 9-2320-260-10.
organization and assure that it is in condition to perform
its assigned mission when placed into operation. For
these reasons, inspect all major units (each standard) to
Preliminary Operating Procedures
assure they are properly assembled and secure.
Check all equipment against the packing list to assure all
(1) Prior to applying power to the
standards and accessories are present and not
equipment van, assure all equipment switches are in
damaged. Refer to Chapter 3 for detailed inspection
the "OFF" position.
Checking Unpacked Equipment
As a safety precaution to equipment, all output
Inspect the equipment for damage incurred
producing instruments should be set to the
during shipment. If the equipment has been damaged,
lowest range, unless otherwise specified by
report the damage on DD Form 6.
individual operating procedures for that
component listing in tables 1-2, 1-3, 1-4, and the packing
list to see if the shipment is complete. Report all
(2) After power has been applied to the
discrepancies in accordance with the instructions in DA
equipment, observe the equipment for a short period of
PAM 738-750. The equipment should be placed in
time (1 to 2 minutes) for blown fuses or short circuits.
service even though a minor assembly or part that does
not affect proper functioning is missing.
(3) Operational checks for performance
Check to see whether the equipment has
should be made on initial operation for all standards.
been modified. (Equipment which has been modified will
Thereafter, the instrument should be checked for
have the Modification Work Order (MWO) number on the
operational performance at the time it is to be used, or at
front panel, near the nomenclature plate.) Check to see
intervals established by internal operating procedures
whether all currently applicable MWO's have been
applied. (Current MWO's applicable to the equipment are
(4) Refer to individual instrument manuals
listed in DA PAM 25-30.)
when detailed operating instructions are necessary.
2-3. Preliminary Operational Checks. The following
procedures describe the preliminary operation checks for
Preliminary Operating Procedures ,
the AN/GSM-286/287. To avoid improper operation or
possible equipment damage, personnel should become
(1) Assure that mounting plate for torque
calibrators is positioned on a solid, level bench top prior
(2) Prior to making any pressure vacuum
measurements, assure that all fittings, hoses, coupling,
etc., are securely connected and free from leaks.