TM 11-5820-803-12
CHAPTER 4
OPERATOR/CREW MAINTENANCE INSTRUCTIONS
Section I. OPERATOR/CREW TOOLS AND EQUIPMENT
4-1.
Scope of Operator/Crew Maintenance
4-2. Test Equipment and Material Required for
The maintenance duties assigned to operator/crew for
Operator/Crew Maintenance
the PSK modem consist of leaning, inspection, testing,
Material required for cleaning are lint free cleaning
and replacement of fuse indicators, and lenses.
cloths, a soft-bristle brush, and trichloroethane. The test
equipment required for system test are an Electronic
Frequency Counter, Hewlett-Packard, HP 5245L, or
equivalent and a Test Set, Modem TS3580( )/G.
Section II. PREVENTIVE MAINTENANCE CHECKS AND SERVICES
4-3.
General.
NOTE
To ensure that the PSK modem is always ready for
If the equipment must be kept in
operation it must be inspected systematically so that
continuos operation, check and
defects may be discovered and corrected before they
service only those items that can be
result in serious damage or failure. The necessary
accomplished without disturbing
preventive maintenance checks and services to be
operation. As soon as the equipment
performed re listed and described in table 4-1. Defects
can be shut down, perform ill the
discovered during operation of the unit will be noted for
required checks and services before
future corrections to be made as soon as operation has
returning the equipment to operation.
ceased Stop operation immediately if a deficiency is
noted during operation which would damage the
equipment. Record all deficiencies, together with the
corrective action taken, on DA Pam 738-750,
Maintenance Management Update.
Table 4-1. Operator' s Preventive Maintenance Checks and Service
NOTE
The checks in the interval columns are to be performed in the order listed.
B - Before operation
Item
Interval
Item to be inspected
No
B
Procedure
Equipment in not ready/available if:
1
*
Blower motors
Equipment fails to support assigned mission.
Start the equipment as instructed in paragraph 3-4.
Change 2 4-1
