TM 11-6625-2946-14/TM 08168A-14/1
CHAPTER
3
OPERATOR/ORGANIZATIONAL MAINTENANCE INSTRUCTIONS
S e c t i o n 1. TOOLS AND EQUIPMENT
the operator and organizational maintenance of the test
3-1. Common Tools and Equipment
set.
Common tools and test equipment items required for
operator and organizational maintenance of the test set
3-3. Materials Required
are listed in the maintenance allocation chart, appendix
The following materials are required for operator/or-
D. Equivalent test equipment items may be substituted
ganizational maintenance
as necessary.
a. Lint-free cleaning cloth
b. Trichlorotrifluroethane
3-2. Special Tools and Equipment
c. Soft-bristled brush.
No special tools or test equipment items are required for
Section Il. PREVENTIVE MAINTENANCE CHECKS AND SERVICES
(1) Preventive maintenance is the systematic inspec-
3-4.
General
tion, care, and servicing of the test set to insure its com-
To ensure that the test set is always ready for operation,
pleteness, serviceability, and immediate availability and
it must be inspected systematically so that defects maybe
capability for the testing of Radio Set AN/PRC-68.
discovered and corrected before they result in serious
(2) Since operation of the test set will be performed
damage or failure. The necessary preventive main-
by maintenance personnel at the organizational level,
tenance checks and services (PMCS) to be performed are
operator and organizational preventive maintenance
listed and described in table 3-1. The item numbers in-
checks and services are combined into a single procedure
dicate the sequence of the minimum inspection require-
(table 3-1 ).
ments. Defects discovered during operation of the unit
b. PMCS Scheduling. Preventive maintenance checks
will be noted for corrective action as soon as operation
for the test set are required on a before-operation, week-
has ceased. If a deficiency is noted that will result in
ly, monthly, and quarterly basis. In addition to these
damage to the equipment, stop operation immediately.
scheduled intervals, the before-operation and weekly
Record all deficiencies together with the corrective ac-
checks should be performed under the following special
tion taken as prescribed in TM 38-750. Marine Corps
conditions:
personnel will refer to current addition of TM
(1) Receipt of equipment.
4700-15/1.
(2) Return from higher category maintenance.
(3) Monthly, if the equipment is maintained in
3-5. Scope of Operator/Organizational
standby condition.
Preventive Maintenance
a. General.
Table 3-I. Operator/Organizational
Preventive Maintenance Checks and Services
Q--Quarterly
M--Monthly
W--Weekly
B--Before
Item
Equipment will be reported not ready if:
Item to be inspected procedure
no.
1
Any item is missing and replacement item is not immediately
Check to ensure that equipment, including accessory items,
available.
is complete. Refer to figure 1-1 and appendix B.
EXTERIOR SURFACE
2
Inspect exterior surfaces, with cover removed, for dust,
moisture, and corrosion. Clean as necessary (paras. 3-6 and
3-7).
CONTROLS AND INDICATORS
3
Check for missing, broken, or loose control knobs.
Operation of the test set is impaired by faulty or intermittent
Check the mechanical action of each control for binding or
control functions or inoperative or inaccurate meter.
excessive looseness. Check the meter for a bent or sticking
needle.
3-1
