When operating with Class I or II leaks, continue to check fluid levels in addition to that
required in PMCS.
Parts without fluid will stop working or may be damaged.
is allowed with minor (Class I or II) leakage.
Fluid levels in an item/system
with such leakage
must be checked
than required in PMCS. When in doubt, notify your supervisor.
Report Class Ill leaks IMMEDIATELY to your supervisor.
Table 2-1. Operator/Crew
Checks and Services
ITEM TO BE INSPECTED
Check for and have repaired, filled, or
IS NOT READY/
adjusted as needed.
Perform Before PMCS
if you are operating
the semitrailer for the first time.
Make the following walk around checks.
a. Check for evidence of leakage (oil, fuel, or brake
fluid) on or under semitrailer.
b. Check tires for obvious
such as cuts,
bruises, bulges, flats, and unusual wear. Check
tires for correct pressure.
Correct pressure is:
48 psi (331 kPa)
40 psi (276 kPa)
32 psi (220 kPa)
Check that fire extinguisher
is in proper place
and has proper pressure.
d. Check for loose, missing,
e. Check electrical
wiring for cuts, breaks, or any
Inspect wheel and stud nuts and hub cap bolts to
seethat they are present and secure.
nected and in good condition.
a . Check for proper operation.
b . Inspect reflectors.