Other Scheduled Maintenance Service.
Scheduled calibration of AN/GSM-286/287 components
3-5. Daily Preventive Maintenance Services. The
will be controlled by the "Recall System." Scheduled
daily preventive maintenance service is a systematic
maintenance, other than operator maintenance, for
inspection of any instrument or item each day it is
vehicles and power generators will be coordinated by
operated and after each time it is emplaced so that
team chief with maintenance supervisors at motor pools
defects may be discovered and corrected before they
and generator shops. Refer to TM 9-2320-260-10 for
result in serious damage or failure. This service is
operator's instructions regarding the M820A2 vehicle.
performed by the operator. Any defects noted, beyond
scope of the operator to correct, will be reported
immediately to the supervisor.
Section II. MAINTENANCE INSTRUCTIONS
3-7. General. This
section contains information
3-9. Maintenance Allocation Chart (MAC)
regarding methods for determining the degree of
maintenance required on the AN/GSM-286/287
explanations of all maintenance and repair functions
authorized for the various echelons. The maintenance
functions are assigned to the lowest available
Preventive Maintenance. 1 Preventive
maintenance category based on the following conditions:
maintenance is action taken by the operator of
(1) Skills available.
equipment to attempt to prevent repair from becoming
(2) Time required.
necessary by making periodic visual checks and
(3) Tools and equipment authorized.
inspection of equipment in order to detect physical
(4) Repair parts available.
irregularities in equipment.
Maintenance should be performed in
Cross Check.1 A method of detecting
accordance with the appropriate TM, TB, or
change in equipment that may establish trends and
Manufacturer's Manual. Repair parts and special tools
assist in the prevention of usage of out-of-tolerance
lists available as Department of the Army publications for
equipment for performance of calibration. By use of the
selected items of AN/GSM-286/287 equipment are listed
cross check method, the technician can ascertain
in appendix A with a cross reference to the
whether further maintenance service is required.
manufacturer's model number. Coverage for items of
The comparison of an
equipment not listed is provided in the manufacturer's
instrument of unverified accuracy to an instrument of
manual. The manufacturer's manuals also contain
known accuracy to correct any discrepancy in the
theory of operation and calibration instructions as well as
accuracy of the unverified instrument. Through the
detailed schematic diagrams to be used as an aid in
calibration process the technician can determine if repair
troubleshooting and repair functions.
efforts will be necessary.
Because of the multiple use application of individual instruments, test hookups, pictorial presentations and operating
instructions are not given in this manual. These instructions and presentations are not contained in the individual
instrument manuals and technical bulletins supplied with the AN/GSM-286/287.