TM 11-6625-622-12
Seq
Procedure
Reference
No.
Item
Clean the meter unit panel and the wattmeter glass.
Exterior surfaces
1
Check for broken meter glass.
a. During operation, see that the knobs and switches
2
Knobs and switches
operate properly.
b. Tighten any loose knobs by tightening setscrews with
blade screwdriver.
c. If trouble remains, contact higher level of maintenance
for repair.
During operation, be alert for any unusual operating
Para 2-5 and 2-6.
3
Operational test
indications. If any unusual indications occur, remove
all power and contact higher level of maintenance for
repair.
3-7. Monthly Preventive Maintenance
3-6. Cleaning
Checks and Services
Inspect the exterior of the test unit and the
transit case. The exterior surface should be
Perform the maintenance functions indicated
clean and free of dirt, grease, and fungus. Per-
in the monthly preventive maintenance checks
form the following procedures as specified in
and services chart (para 3-8) once each month
the daily preventive maintenance checks and
in addition to the daily preventive maintenance
services chart.
checks and services (para 3-5). A month is
defined as approximately 30 calendar days of
Caution: Do not press on the meter face when
8-hour-per-day operation. Adjustment of the
cleaning; the meter may become damaged.
maintenance interval must be made to com-
a. Remove all foreign material with a clean
pensate for unusual operating conditions. Equip-
lint-free cloth.
m e n t maintained in a standby (ready for
b. Remove grease, fungus, and ground-in
immediate operation) c o n d i t i o n must have
dirt with a cloth dampened (not wet) with
monthly preventive maintenance checks and
water and a mild soap.
services performed on it. Equipment in limited
Caution: Do not use any cleaning solvent on
storage (requires service before operation) does
the front panels or silk screening.
not require monthly preventive maintenance.
c. Remove dust or dirt from the connectors
with a soft-bristled brush.
Seq
No.
Item
Procedure
References
Inspect the cables for deterioration and damage, such as
1
Cables
cuts, cracks, or frayed insulation. Repair minor dam-
age to insulation by covering the damaged area with
rubber electrician's tape. Replace defective cables.
2
Connectors, jacks, and
a. Hand check these exterior connectors, jacks, and
screws
screws for looseness. Tighten all loose exterior
items.
b. See that no screws are loose or missing and tighten all
loose screws.
3
Exterior surfaces
Inspect all exposed metal surfaces for rust and corrosion.
Touch up surfaces.
