|
| |
TM 9-2320-364-20-2
2-1473
(1) Set multimeter select switch to
volts dc.
(2) Connect positive (+) multimeter lead
to wire 1871 at retarder relay R8,
terminal 86.
(3) Connect negative (–) multimeter lead
to a known good ground.
(4) Turn ON ENGINE switch
(TM 9-2320-364-10).
(a) If 10 to 14 vdc are not present,
turn OFF ENGINE switch
and repair wire 1871 (see
schematic Fig 2-38) or notify DS
Maintenance.
(b) If 10 to 14 vdc are present,
wire 1871 is OK.
(5) Turn OFF ENGINE switch.
VOLTAGE 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) Install jumperwire on wire 213 at
connector MC9, terminal 3D end and
a known good ground.
(2) Set multimeter select switch to ohms.
(3) Is there continuity between retarder
relay R8, terminal 85 and a known
good ground?
(a) If there is no continuity, repair
wire 213 (see schematic Fig 2-38)
or notify DS Maintenance.
(b) If there is continuity, wire 213
is OK.
(4) Connect connector MC9 and
tighten screw.
CONTINUITY TEST
Relay test must be performed with relay
partially removed.
Relay test must be performed with relay
partially removed.
NOTE
NOTE
|
