TM 9-2330-373-14 & P
Table 4-2. Troubleshooting (cont)
TEST OR INSPECTION
BRAKE SYSTEM (cont)
Step 5. Inspect intervehicular air hoses (1) for proper connection and
damaged or missing performed packing (2).
a. Connect hoses (1) properly.
b. Replace missing or damaged performed packing (see towing vehicle
Step 6. Apply towing vehicle brakes and release. Emergency relay valve
should vent brake chamber air through exhaust port when towing
vehicle brakes are released.
If brake chamber air is not vented when towing vehicle brakes are released, replace the emergency relay valve (para 4-25).