Section II. ORGANIZATIONAL PMCS

TM 10-3930-647-14&P

Section II. ORGANIZATIONAL PMCS

1 . Do your (Q) PREVENTIVE MAINTENANCE

C-Welds: Look for loose or chipped paint, rust or

once each 3 months.

gaps where parts are welded together. If you find a

2. Do your (S) PREVENTIVE MAINTENANCE

bad weld, report it to direct support maintenance.

once each 6 months.

D-Electric wires and connectors: Look for cracked

3. Do your (A) PREVENTIVE MAINTENANCE

or broken insulation, bare wire, and loose or broken

once each year.

connectors. Tighten loose connectors and make sure

4. Do your (B) PREVENTIVE MAINTENANCE

the wires are in good shape.

once each two years.

E-Hoses and fluid lines: Look for wear, damage

5 . Do your (H) PREVENTIVE MAINTENANCE

and leaks and make sure clamps and fittings are

at the hour interval listed.

tight. Wet spots show leaks, of course, but a stain

6 . Do your (MI) PREVENTIVE MAINTENANCE

around a fitting or connector can mean a leak. If a

when the mileage of the vehicle reaches the amount

leak comes from a loose fitting or connector, tighten

listed.

it. If something is broken or worn out, report it to

7. If something doesn't work, troubleshoot it with

direct support maintenance.

t h e instructions in your commercial manual or

11. It is necessary for you to know how fluid

notify your supervisor.

l e a k a g e affects the status of your vehicle. The

8. Always do your

PREVENTIVE MAIN-

f o l l o w i n g are definitions of the types/classes of

T E N A N C E in the same order so it gets to be a

leakage you need to know to be able to determine

habit. Once you've had some practice, you'll spot

the status of your vehicle. Learn, then be familiar

anything wrong in a hurry.

w i t h them and REMEMBER-WHEN IN DOUBT,

9. If anything looks wrong and you can't fix it,

N O T I F Y YOUR SUPERVISOR!

write it on your DA Form 2404. If you find

something seriously wrong, report it to direct sup-

Leakage definitions for organizational PMCS

port maintenance RIGHT NOW.

Seepage of fluid (as indicated by wet-

Class I

10. When you do your PREVENTIVE MAIN-

ness or discoloration) not great

TENANCE, take along the tools you will need to

enough to form drops.

make all the checks. Take along a rag, you'll always

Leakage of fluid great enough to form

class II

need at least one.

drops but not enough to cause drops

to drip from item being checked/in-

WARNING

spected.

Dry cleaning solvent, used

to clean parts

Leakage of fluid great to form drops

Class III

is potentially dangerous to

personnel and

that

fall

from

the

item

being

property. Do not use near

open flame or

checked/inspected.

excessive heat. Flash point

of this solvent

is 138F.

CAUTION

Equipment operation is allowable with

A-Keep it clean: Dirt, grease, oil, and debris only

minor leakages (class I or II). Of course,

get in the way and may cover up a serious problem.

consideration must be given to the fluid

Clean as you work and as needed. Use dry cleaning

in the item/system being

capacity

solvent (SD-2) on all metal surfaces. Use soap and

checked/inspected. When in doubt, notify

water when you clean rubber or plastic material.

your supervisor.

B-Bolts, nuts, and screws: Check them all for oh

When operating with class I or II leaks,

vious looseness, missing, bent or broken condition.

continue to check fluid levels as required

You can't try them all with a tool, of course, but

in your PMCS.

look for chipped paint, bare metal, or rust around

Class III leaks should be reported you

b o l d heads. If you find one you think is loose,

your supervisor or direct support.

tighten it, or report it to direct support maintenance

if you can not tighten it.

F-S