Section V. ORGANIZATIONAL TROUBLESHOOTING
4-11 Troubleshooting Table
a. The table in this section lists the common malfunctions which may be found during the operation or
maintenance of the semitrailer or components. You should perform the tests or inspections and corrective
actions in the order listed.
b This manual cannot list all malfunctions that may occur, nor all tests or inspections and corrective
actions. If a malfunction is not listed, or it is not corrected by the listed corrective actions, notify your
4-14. SYMPTOM INDEX
a . Electrical System.
12- or 24-volt lamps do not light
One or more lamps on chassis or body will not light
All 12- or 24-volt lamps on van bodies do not light and taillights operate normally
All 24-volt dome lamps do not light but clearance lamps operate normally
110-volt dome lamps do not light and 110-volts ac not present at wall receptacle
All 110-volt dome lamps do not light but 110-volts ac is present at wall receptacle
110-volts ac not present at wall receptacles but 110-volt dome lamps light
Dim or flickering lights
--. Brake System.
Brakes will not release
No brakes or weak brakes
Slow brake application or release
Brakes drag and one or more brake drums running hot
c. Landing Leg
Difficulty in turning handcrank
d. Springs, Shock Absorbers, and Wheels.
. Hard pulling
. Improper spring action
. Excessively worn, scuffed, or cupped tires