TM 9-2330-386-14&P
4-55 SHIPPING INSTRUCTIONS (CONT).
e.Preservation.
(1) All critical unpainted metal surfaces must be protected during shipment.
Oil or grease covered in the lubrication section may be used for this
purpose but it is effective for only a few days. Equipment protected in
t h i s manner must be watched for signs of corrosion. Preservatives
selection will be such that their application, use or removal will not
damage the surface to which they are applied.
( 2 ) C o a t l o w e r l a n d i n g g e a r l e g , c h a s s i s , f r a m e , exterior hardware and
suspension system with corrosion preventive compound.
(3) Spray data plates with a thin coating of ignition insulation compound.
Control overspray to avoid coating adjacent surfaces.
(4) Cover all exterior reflectors and lights with tape.
R e f e r to AR 746-1, Packaging of Army Materiel for Storage and
f. M a r k i n g s .
Shipment.
S e c t i o n XIII. MA INTENANCE UNDER UNUSUAL CONlDITIONS
Para
Extreme Cold Weather Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-56
Extreme Hot Weather Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-57
Maintenance After Fording . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-58
Maintenance After Operation on Unusual Terrain . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-59
4-56 EXTERME COLD WEATHER MAINTENANCE.
CAUTION
It is very important that approved maintenance procedures be
F M 9-207 contains general information which is
followed.
specifically applicable to this materiel as well as all other
materiel.
It must be considered an essential part of this
technical manual, not merely an explanatory supplement to it.
a . The importance of maintenance must be impressed on all concerned. Maintenance
of mechanical equipment in extreme cold is exceptionally difficult in the field.
E v e n shop maintenance cannot be completed with normal speed because equipment must
b e allowed to thaw out and warm up before the mechanic can make satisfactory
repairs. In the field, maintenance must be undertaken under the most difficult of
conditions. Bare hands stick to cold metal. Fuel in contact with the hands results
in supercooling due to evaporation, and hands can be painfully frozen in a matter of
m i n u t e s . Engine oils, except subzero grade, are unpourable at temperatures below
-40 F. Ordinary greases become solid.
b. These difficulties increase time required to perform maintenance. At tempera-
t u r e s below -40 F, maintenance requires up to five times the normal amount of time.
C o m p l e t e w i n t e r i z a t i o n , d i l i g e n t m a i n t e n a n c e , a n d well trained crews are the key to
efficient Arctic winter operation.
4-97