TM 9-2330-356-14
e. Watch for and correct anything that might cause a
a.
Perform the checks and services at the intervals
problem with the equipment. Some things you should
shown in table 4-8.
watch for are:
(1) Do your QUARTERLY (Q) PREVENTIVE
(1) Bolts, nuts, and screws that are loose,
MAINTENANCE once each three months.
missing, bent, or broken.
(2) Do your SEMIANNUAL (S) PREVENTIVE
(2) Welds that are poor or broken.
MAINTENANCE twice a year, or each six months.
(3) Electrical wires and connectors that are bare,
(3) Do your ANNUAL (A) PREVENTIVE
broken, or loose.
MAINTENANCE once each year.
(4) Hoses and fluid lines that leak, or show signs
(4) Do your BIENNIAL (B) PREVENTIVE
of damage or wear.
MAINTENANCE once each two years.
You should know how fluid leaks affect the status
f.
(5) Do your HOURS (H) PREVENTIVE
of your equipment. Learn and be familiar with the
MAINTENANCE at the hour interval listed.
following types/classes of leakage. When in doubt, notify
your supervisor!
Ensure that all safety precautions listed in the
b.
Warning Summary are followed while performing PMCS.
Leakage Definitions for PMCS:
Pay close attention to all WARNINGS and CAUTIONS.
Seepage of fluid (as indicated by wetness
CLASS I
c.
If the semitrailer doesn't work properly and you
or discoloration) not great enough to
can't see what is wrong, refer to Section IV for
form drops.
troubleshooting instructions.
Leakage of fluid great enough to form
CLASS II
drops but not great enough to cause
WARNING
drops to drip from the item being check-
ed/inspected.
Dry cleaning solvent P-D-680 is toxic and
flammable. Always wear protective goggles
Leakage of fluid great enough to form
CLASS III
and gloves, and use only in a well-ventilated
drops that fall from the item being
area. Avoid contact with skin, eyes, and
checked/inspected.
clothes, and DO NOT breathe vapors. DO
NOT use near open frame or excessive heat,
The solvent's flash point is 100F-138F
CAUTION
(38C-59C). if you become dizzy while
using cleaning solvent, immediately get fresh
Equipment operation is allowable with minor
air and medical help. if solvent contacts eyes,
leakage (Class I or II). Of course, consider-
immediately wash your eyes with water and
ation must be given to the fluid capacity in the
get medical aid.
item/system
being
checked/inspected.
When in doubt, notify your supervisor.
Make cleanup a part of your preventive
d.
maintenance. Dirt, grease, oil, and debris may cover up a
g. When operating with Class I or II leaks, continue
serious problem. Use dry cleaning solvent (item 11,
to check fluid levels as required in your PMCS.
grease and spilled oil. Use soap and water when you clean
h.
Class III leaks should be corrected before
releasing equipment for operation.
rubber or plastic material.
4-6
