TM 11-5805-587-15/3
TO 31W2-l-471-3
Quarterly Preventive Maintenance Checks and Services.
If the equipment must be
kept in continuous operation,
Note:
check and service only those items
that can be checked and serviced
without disturbing operation; make
complete checks and services when
the equipment can be shut down or
during periods of light traffic.
Sequence
Procedure
References
Item
No.
Check operation
Selector
control
cir-
Chap 4,
and transfer
cuits
Sect IV
features.
Check operation
Test equipment
Para 2-51
of all porta-
through
ble and rack
2-5n
mounted test
Chap 4,
equipment.
Sect III
through
Sect X
Check station
None
TSC
ground.
Semiannual Preventive Checks and Services.
If the equipment must be
kept in continuous operation,
Note:
check and service only those items
that can be checked and serviced
without disturbing operation; make
complete checks and services when
the equipment can be shut down or
during periods of light traffic.
Sequence
No.
Item
Procedure
References
Power equipment
Perform routine
Para 2-5a
checks on all
power equip-
ment, bus bars,
and power dis-
tribution
equipment.
Register-senders
Check the puls-
Chap 4,
ing limits.
Sect V