|
| |
TM 9-2320-364-20-2
2-1533
(1) Set multimeter select switch to ohms.
(2) Is there continuity on wire 1435
between trailer service lights relay
R14, terminal 85 and a known good
ground?
(a) If there is no continuity, repair
wire 1435 (see schematic
Fig 2-35) or notify DS
Maintenance.
(b) If there is continuity, wire 1435 is
OK.
CONTINUITY TEST
Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry or tools contact positive electrical
circuits, a direct short may result. Damage to equipment, injury or death to personnel may occur.
Circuit breakers CB5, CB6, CB12, CB20, CB22, CB23 and relays R3, R13 - R19, R26, R28, R32, R33
are always electrically hot and can cause severe injury to personnel. Care must be exercised when
working under the electrical circuit board cover.
(1) Set multimeter select switch to
volts dc.
(2) Connect positive (+) multimeter lead
to wire 1008C at trailer service lights
relay R14, terminal 87.
(3) Connect negative (–) multimeter lead
to known good ground.
(4) Turn ON ENGINE switch
(TM 9-2320-364-10).
(a) If 22 to 28 vdc are not present,
turn OFF ENGINE switch and
replace relay R14 (Para 7-95) and
perform Step (5) below.
(b) If 22 to 28 vdc are present,
turn OFF ENGINE switch and
repair wire 1008C (see schematic
Fig 2-35) or notify DS
Maintenance.
(5) Install two ECB covers and 15 screws.
VOLTAGE TEST
Relay test must be performed with relay
partially removed.
NOTE
Relay test must be performed with relay
partially removed.
NOTE
|
