SECTION III
MAINTENANCE AND OVERHAUL
3-1. GENERAL.
3-2. This section contains information and procedures which must be followed to insure
that the test set remains in good Operating condition.
Maintenance consists of filling the
oil reservoir where necessary, emptying the fuel filter sumps, adjusting the safety relief
system, and periodic calibration of gauges in accordance with applicable military speci-
fications. Overhaul consists of troubleshooting the test set, correcting detected faults,
sad replacing parts and components when necessary.
3-3. FILLING OIL RESERVOIR.
3-4. Whenever the oil level of the reservoir falls below the minimum level indicated on the
reservoir, oil conforming to specification MIL-H-5606 must be added until the oil level is
again at proper level. To fill the reservoir, proceed as follows:
1. Prepare test set for use in accordance with procedure given in paragraph 2-3.
2. Remove cover plate on right side panel of test set to gain access to reservoir and
filler port.
3. Unscrew cap nut from filler valve port and set FILL-RUN-DRAIN valve handle
to FILL.
4. Attach filler hose to port from which cap nut was removed, and tighten securely.
Place other end of filler hose in container of oil conforming to specification MIL-H-5606.
5. Set power ON-OFF switch (12, figure 1-1) to ON. Observe reservoir through
window on right side panel; when oil level is within points indicated, set ON-OFF switch
to OFF.
3-1