TM 11-5820-880-12
Table 4-1. Organizational Preventive Maintenance Checks and Services
Quarterly Schedule
Procedures
Item
Item to be
inspected
No.
Check to see that associated transceiver organiza-
1
Publications
tional maintenance manuals are on hand, including
latest changes.
Check to see whether modification work orders
Equipment Modifications
2
(MWOs) that are required have been or are
scheduled to be performed.
Check to see that the metal surfaces
a.
Multiplexer Case
3
CY-7775 ( )/GRC, 2-channel
are free of rust and corrsion.
CY-7776 ( )/GRC, 5-channel
b.
Check for water tightness.
Check to see that the metal surfaces
a.
4
Coupler
CU-2266 ( )/GRC, 2-channel
are free of rust and corrosion.
CU-2267 ( )/GRC, 5-channel
b.
Check connectors for cleanliness and damage.
c.
Check for water tightness.
Check the ground lug on the rear of the coupler
d.
for damage.
a.
Check to see that the metal surfaces are free of
Band-pass Filter
5
rust and corrosion.
F-1482 ( )/GRC
b.
Check to see that tuning knobs or selectors turn
smoothly, and are not damaged or missing.
c.
Check for water tightness.
d.
Check meter face for broken or cracked glass or
signs of possible damage, such as being fogged
e.
Check connectors for cleanliness and damage.
a.
Check to see that the metal surfaces are free of
Termination Unit
6
rust and corrosion.
MX-10080 ( )/GRC
b.
Check for water tightness.
c.
Check connector for cleanliness and damage.
4-8