TM -9-2330-373-14 & P
TROUBLESHOOTING PROCEDURES (cont)
3-6. INTRODUCTION (cont)
SYMPTOM INDEX
Troubleshooting
Chart
Item No. Page
ELECTRICAL SYSTEM
All lamps fail to light ................................................................................................................................ 1
All chassis lights are on and van clearance
lights are off ...................................................................................................................................... 3
Directional signals inoperative ................................................................................................................ 4
One or more lamps will not light.............................................................................................................. 2
BRAKE SYSTEM
Brakes will not release ............................................................................................................................ 5
Grabbing brakes ..................................................................................................................................... 8
No brakes or weak brakes ...................................................................................................................... 6
Slow brake application or slow release ................................................................................................... 7
SUSPENSION SYSTEM
All air springs flat................................................................................................................................... 10
Semitrailer sags to one side.................................................................................................................... 9
AIR MOUNTED FIFTH WHEEL KINGPIN
Air springs flat ....................................................................................................................................... 11
Air leakage from tires ............................................................................................................................ 15
Excessively worn, scuffed, or cupped tire(s) ........................................................................................ 14
Noisy wheels ......................................................................................................................................... 12
Wobbly wheels ...................................................................................................................................... 13
Erratic operation or binding .......................................................................................................... . . . . . . . 16
3-8