Section III. TROUBLESHOOTING
information for locating and correcting most of the
operating troubles which may develop in the editorial
and photomechanical unit of the special warfare printing
plant. Each malfunction for an individual component,
unit, or system is followed by a list of tests or
inspections which will help you to determine corrective
tests/inspections and corrective actions in the order
This manual cannot list all malfunctions that
may occur, nor all tests or inspections and corrective
actions. If a malfunction is not listed or is not corrected
by listed corrective actions, notify your supervisor.
Refer to table 3-2 for troubleshooting information
photomechanical shelter system and components. Any
trouble, the correction of which is beyond the scope of
maintenance echelon indicated in the Maintenance
Allocation Chart (MAC)
Table 3-2. Troubleshooting
TEST OR INSPECTION
SHELTER SYSTEM AND COMPONENTS
1. NO ELECTRICAL POWER TO SHELTER SYSTEM
Step 1. Inspect to see that generator is operating properly,.
Start the generator set in accordance with the applicable technical manual.
Step 2. Check that main power cable is correctly connected at main proper receptacle.
Do not perform any electrical maintenance or make any electrical connection or disconnection
at the main power receptacle while the generator set engine is running. Connect the primary
power cable to the input power receptacle located near the door of the shelter. The cable
connector and the receptacles are keyed to ensure proper connection.
Step 3. Check to see if the main power cable leads are properly connected at generator.
The leads of the power cable are color coded as follows :
Phase A black Pin 1
Phase B red Pin 2
Phase C green Pin 3 (marked with blue band)
Neutral white Pin 4
Step 4. Inspect to see if main circuit breaker is in the on position. Position the applicable circuit breaker to
2. NO ELECTRICAL POWER AT EQUIPMENT RECEPTACLES.
Inspect to see if the proper circuit breaker is in the on position.
Position applicable circuit breaker to on.