TM 11-6625-2632-14-1
Section III. PREVENTIVE MAIN TENANCE CHECKS AND SERVICES
of and minimum inspection required. Defects
3-6. General
To insure that the AN/PRM 32A is always ready
discovered during operation of the unit will be
noted for future correction to be made as soon as
for operation, it must be inspected systematically
operation has ceased. Stop operation immediately
so that defects may be discovered and corrected
if a deficiency is noted during operation which
before they result in serious damage or failure. The
would
d a m a g e the equipment.
necessary preventive maintenance checks and
R e c o r d all
deficiencies together with the corrective action
services to be performed are listed and described in
taken.
A-Monthly
Total task-hours required: 1.6
Item to be inspected
Item
Work
Procedure
Time
Number
(T/H)
0.2
1
WRENCH
Open cover and inspect to be sure wrench is in place in cover. If wrench is not present, order through normal
supply channels.
2
CASE
0.1
Inspect all surfaces for dirt, grease, dents, or cracks. Clean all exposed surfaces with a clean, dry, lint-free
0.2
cloth. Do not use cleaning solvents. Wipe off dirt or grease which has collected. Wipe the surface of the rubber
channel carefully so it will continue to act as a seal (para 3-7).
WARNING
The fumes of TRICHLOROETHANE are toxic. Provide thorough ventilation whenever it is used; avoid
prolonged or repeated breathing of vapor. Do not use near an open flame or hot surface, trichloroethane is
nonflammable but heat converts the fumes to a highly toxic phosgene gas the inhalation of which could
result in serious injury or death. Prolonged or repeated skin contact with trichloroethane can cause skin in-
flammation. When necessary, use gloves, sleeves and aprons which the solvent cannot penetrate.
0.1
3
CABLES
Inspect cables for dirt, cracks, loose connections, or evidence of deterioration of the covering. Replace defec-
tive cables. Order through normal supply channels.
4
0.2
CONNECTOR ADAPTER
Inspect connector adapters to be sure they are present and mated properly on ends of both cable connectors.
If they are damaged, or are not present, replace them.
0.1
5
METER
Inspect meter for cracks in cover, missing cover, or dirt lodged under cover.
0.1
TEST SET
6
With cover open inspect test set to be sure all visible components are in place. Inspect for loose or dirt y con-
nections, worn or deteriorated parts, or missing parts.
0.1
7
Clean all exposed components with a clean, dry, lint-free cloth. Do not use cleaning solvents. Wipe off dirt or
grease which has collected (para 3-7).
0.1
8
Test set operation (fig. 2-1 and 2-2). Connect the transmitter cable to a Radio Set AN/PRC-90 known to be
operating properly and the receiver cable to a second Radio Set AN/PRC-90 known to be operating properly
(para 2-8) and perform the 243.0 MHz receiver check (para 2-9f). Test set meter should indicate in the green
area. If it does not, refer the test set to general maintenance for repair.
0.1
Test set operation (fig. 2-1 and 2-2). Connect the transmitter cable to a Radio Set AN/PRC-106 (if available)
9
known to be operating properly and the receiver cable to a second Radio Set AN/PRC-106 known to be
operating properly (para 2-8) and perform the 121.5 MHz receiver check (para 2-10h). Test set meter should
indicate in the green area. If it does not, refer the test set to general support maintenance for repair.
0.2
10
If paint of case or cover is damaged, repaint as required (para 3-4).
0.1
11
If know is broken or loose, replace knob (para 3-10).
3-7. Cleaning
dirt. If dirt is difficult to remove, dampen the
a. Cleaning at the organizational category will
cloth with warm water and, if necessary, use a
mild soap.
consist of wiping the exterior of the case with a
clean, lint-free cloth to remove moisture and loose
