TM 11-6625-2629-14&P
structions for performing the required checks are
tinuous operation, check and service only
identified as periodic checks in this manual.
those items that can be checked and
serviced without disturbing operation;
4-6. Checks and Services
make the complete checks and services
The modulation meter shall be checked and
when the equipment can be shut down.
serviced periodically in accordance with tables 4-1
and 4-2.
NOTE
If the equipment must be kept in con-
Table 4-1. Operator's Preventive Maintenance Checks and Services
D Daily
Time-0.7
Interval
and
ITEM TO BE INSPECTED
Work
time
Sequence
(N/H)
PROCEDURE
No.
D
1
0.1
Check to see that the equipment is complete.
0.1
2
EXTERIOR SURFACES
Clean the exterior surfaces, including the panel and meter glasses (pare 4-5). Check all meter
glasses and the indicator lens for crocks.
0.1
3
CONNECTORS
Check for tightenss of all connectors.
4
0.2
CONTROLS AND INDICATORS
Observe that the mechanical action of each dial, and switch is smooth and free of external or
internal binding, and that there is no excessive looseness. Check meters for sticking or bent
pointers.
5
0.2
OPERATION
Operate the equipment in accordance with the instructions contained in paragraph 3-4.
Table 4-2. Organizational Preventive Maintenance Checks and Services
Total man-hours required:
Interval
and
ITEM TO BE INSPECTED
Work
Sequence
time
No.
(M/ H)
PROCEDURE
W
M
Q
e
.
1
CABLES
Inspect cords, cables, and wires for chafed crocked, or frayed insulation. Replace
connectors that are broken, arced, stripped, or worn excessively.
2
HANDLES AND LATCHES
Inspect handles, latches, and hinges for looeeness. Replace or tighten as necessary.
METAL SURFACES
1
Inspect exposed metal surfaces for rust and corrosion. Clean and touchup paint as
required.
JACKS
2
Inspect jacks for snug fit and good contact.
1
INTERIOR
Clean interior of chassis and cabinet.
2
PLUCKOUT ITEMS
Inspect seating of pluckout items. Make sure that tube clamps grip tube bases
tightly.
3
TRANSFORMER TERMINALS
Inspect the terminals on the power transformer. All nuts must be tight. There
should be no evidence of dirt or corrosion.
4
TERMINAL BLOCKS
Inspect terminal blocks for loose connections and crocked or broken insulation,
5
RESISTORS AND CAPACITORS
Inspect the resistors and capacitors for recks, blistering, or other detrimental
defects.
4-2
