C1,TM 9-2330-205-14&P
ORGANIZATIONAL TROUBLESHOOTING - CONTINUED
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. LAMPS DIM OR FLICKERING - CONTINUED.
Step 2.
Check continuity between ground wire eyelet end and trailer frame.
If no continuity exists, remove eyelet and clean mating surfaces.
Step 3.
Check continuity between edge of lamp socket and light assembly housing.
If no continuity exists, replace light assembly:
Blackout light (page 4-17).
Composite light (page 4-20).
Service taillight (page 4-19).
Check continuity between edge of lamp socket and trailer frame.
Step 4.
If no continuity exists, clean mating surfaces.
BRAKE SYSTEM
3. BRAKES WILL NOT RELEASE.
NOTE
If only one wheel's brake will not release, proceed to step 4.
Check relay valve for proper operation. Refer to page 2-12, step 27.
Step 1.
WARNING
Before performing any maintenance tasks on brake system, disconnect trailer air lines
from towing vehicle and open draincock to release all air pressure from system. Serious
injury may result from failure to do so.
Replace relay valve as required (page 4-57).
Check airbrake chamber for insufficient push rod travel.
Step 2.
Adjust service brakes as required (page 4-46).
WARNING
All parts of the service brake assembly will be coated with asbestos dust from the brake
linings. A filter mask should be worn whenever working on any assembly components.
Breathing asbestos dust may cause serious damage to health.
