VISUAL INSPECTION -726280267

TM 9-2320-364-20-1

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.

VISUAL INSPECTION

Check terminals at vernier control harness

connectors (connector and harness side) for

damage; bent, corroded and unseated pins

or terminals.

(1) If harness connectors are

damaged, repair connectors

(Para 7-101).

(2) If harness connectors are OK,

replace vernier control

(Para 7-100).

VOLTAGE TEST

(1) Set multimeter select switch to

volts dc.

(2) Connect positive (+) multimeter lead

to vernier control harness connector

MC38, terminal A.

(3) Connect negative (- ) multimeter lead

VERNIER CONTROL

to vernier control harness connector

HARNESS CONNECTOR MC38

MC38, terminal B.

(4) Turn ON ENGINE switch

(TM 9-2320-364-10).

(5) Turn on crane power switch and

latch high idle.

(a) If there is 1.0 vdc or more

present, turn OFF ENGINE

switch and repair wires 916,

1525 and/or 510 (see

schematic Fig 2-1) or

notify DS Maintenance.

(b) If less than 1.0 vdc is present,

wires 916, 1525 and 510

are OK.

(6) Turn OFF ENGINE switch and crane

power switch.

2-197