TM 11-6625-596-12
CHAPTER 4
ORGANIZATIONAL MAINTENANCE
4-1.
Scope of Organizational Maintenance
The assigned maintenance duties for organizational maintenance are listed below, together with references to the
paragraphs covering the specific maintenance functions. These duties do not require special tools or test equipment.
a.
Weekly preventive maintenance checks and services (para 4-2).
b.
Monthly preventive maintenance checks and services (para 4-3).
c.
d.
Repairs and adjustments as follows:
(3) Replacement of front panel knobs and dial indicators (para 4-6c).
4-2.
Weekly Preventive Maintenance Checks and Services Chart
Seq
Item
Procedure
Reference
No.
1
Cable
Inspect the cords, cables, and wires for chafed, cracked, or
frayed insulation Cuts in the power cord insulation can
be repaired by being covered with rubber tape and then
with friction tape Replace connectors that are broken,
arced, stripped, or worn excessively.
2
Handles, latches, and
Inspect handles, latches, and hinge for looseness Replace or
hinge
tighten as necessary.
3
Pushbutton switches
Inspect for proper action If contacts do not make and
break correctly, or are otherwise defective, return to
higher category maintenance for repair.
4
Clamping fixture plunger
Check pressure exerted by plunger when pressed.
5
Instrument transit case
Inspect for seating If it has been cut or broken, the whole
gasket
gasket must be replaced If necessary, send to higher
category maintenance for repair.
6
Dust and moisture gaskets
Check for cracks and breaks If necessary, 'send to higher
on pushbutton
category maintenance for repair.
switches.
7
Shock mounts on 20-Hertz
necessary, send to higher category maintenance for
(fig4-1)
repair.
8
Metal surfaces
Inspect for rust and corrosion. Replace rusted or corroded
hardware.
4-1