STOPLIGHT DOES NOT OPERATE. (Cont) -725550209

TM 9-2330-385-14

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.

Resistors mounted on exterior of junction box assembly reach very high temperatures when power is

applied to circuit. Avoid touching or contacting resistors when working in or around junction boxes.

Failure to comply could result in injury to personnel.

VOLTAGE TEST

(1) Loosen four captive screws and

remove front junction box cover.

(2) Connect positive (+) multimeter lead

to front junction box, terminal 8.

(3) Connect negative (--) multimeter lead

to a known good ground.

(4) While assistant fully applies brake

pedal, (TM9-2320-364-10) observe

multimeter.

(a) If 22 to 28 vdc are not present,

release brake pedal and replace

connector MC15 (Para 4-30).

(b) If 22 to 28 vdc are present,

connector MC15 is OK.

(5) Release brake pedal.

VOLTAGE TEST

(1) Connect positive (+) multimeter lead

to front junction box, terminal 17.

(2) Connect negative (--) multimeter lead

to a known good ground.

(3) While assistant fully applies brake

pedal, observe multimeter

(TM 9-2320-364-10).

(a) If 22 to 28 vdc are not present,

release brake pedal and replace

front junction box (Para 4-25).

(b) If 22 to 28 vdc are present, front

junction box is OK.

(4) Release brake pedal.

(5) Install front junction box cover

and tighten four captive screws.