Table 2-1. Operator/Crew Preventive Maintenance Checks and Services - Continued
NOTE: Within designated interval, these checks are to be performed in the order listed.
For Readiness Reporting
Item to be Inspected
Equipment is Not Ready/
Procedure: Check for and have repaired,
fiIled, or adjusted as needed
BRAKE SYSTEM (Cont)
Service brakes fail to
b. Test brake system by connecting semitrailer
to towing vehicle. Check hose connections and
make sure the towing vehicle air service line valve
is turned on. Actuate the service brakes.
Service brakes can be heard to actuate at
Air leaks are found.
c. With semitrailer connected to the towing
vehicle, have an assistant actuate the service brakes
and listen for air leaks at the intervehicular connect-
ing hoses (5) and at the emergency relay valve (6)
and air reservoir (7).
d. Be alert for unusual difficulty in stopping that
would indicate that the trailer service brakes are