TM 11-6625-2981-14
SCHEDULED
MAINTENANCE
4 - 2 . Scheduled Maintenance.
Introduction.
This chapter describes the scheduled and preventive
Ohmmeter should be cleaned, lubricated and per-
maintenance for the ohmmeter.
formance tested at 6 month intervals.
Periodicity
Maintenance Action
Reference
Cleaning
S
4-3
S
Lubrication
4-4
S
Performance Test
4-5
Nomenclature
National Stock Number
Tool kit, electronic eqpt. TK-101/G
I
Resistor, fxd film 1 Megohm 1%
Resistor, fxd film 10 Megohm 1%
Resistor, fxd film 100 Megohm 1%
Voltmeter, electronic ME-202C/U
4-3. Cleaning.
air source must limit the nozzle pressure to
no more than 29 pounds per square inch
CAUTION
guage (PSIG). Goggles must be worn at all
If solvents are required for cleaning, use
times while cleaning with compressed air.
only alcohol or freon. Do not use tri-
b. Interior Cleaning. Remove the six screws holding
chlorotrifluoroethane (trichloroethane) as
the ohmmeter to the case. Remove the ohmmeter from
that solvent will damage some of the plastic
the case. Using compressed air, clean out the case.
parts. Do not use abrasives or scouring
Refer to figure 4-1. Clean ohmmeter if dirt is present.
powders as they will damage the finish and
Use compressed air for cleaning. Do not blow air di-
may leave a residue.
rectly into meter movement, item 1 of figure 4-1. Do
a. Exterior Cleaning. Clean the exterior surface of
not replace the ohmmeter in the case until lubrication,
all dirt or grease using a clean cloth.
4-4, has been completed.
WARNING
To be usable for cleaning, the compressed
