TM 9-6150-226-13
The troubleshooting table (Table 4-3) lists malfunctions which are authorized
by the Maintenance Allocation Chart (MAC) followed by a list of probable causes
and corrective action.
b.
Troubleshooting
consists of isolating the system in which the
malfunction occurs and locating the defective component, using testing devices
and tools identified in the Maintenance Allocation Chart.
4-10. TROUBLESHOOTING.
a.
The table lists the common malfunctions which you may find during the
operation or maintenance of DISE/PDISE or its components.
You should perform
the tests/inspections and corrective actions in the order listed.
b.
The 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 next higher level of
maintenance.
WARNING
High voltage is present in this system.
DISE and PDISE
supports equipment using 120/208 V ac.
Do not make
continuity checks
injury may result.
c. Phase Designation.
designations as follows:
(1) Phase A or L1
(2) Phase B or L2
(3) Phase C or L3
with the power on.
Electrical phases are
Death or serious
designated with one of two
(4) Neutral (N) or LO
d.
Wiring Designation.
DISE and PDISE feeder/distribution center wires
are designated with 6- to 10-character codes in accordance with the following
examples:
(1) Example 1-J2A4L1.
(a) J2A-wire originates
(b) 4-wire is #4 gage.
(c) L1-wire connects to
(2) Example 2-J8B12NEUT.
from connector J2, pin A.
phase bus L1 (phase A).
. .
(a) J8B - wire originates from connector J8, pin B.
(b) 12-wire is #12 gage.
(c) NEUT wire connects to neutral phase bus (LO).
(3) Example 3-J14A12CB14.
(a) J14A-wire originates from connector J14, pin A.
(b) 12-wire is #12 gage.
(c) CB14-wire connects to circuit breaker #14.
4-8
