4-87. PREPARATION FOR SHIPMENT (Con't).
c. LUBRICATION AND MAINTENANCE.
Lubricate semitrailer according to instructions found in Chapter 3, Section I, Clean
excess grease and oil from lubrication points and grease fittings after lubrication and
Perform Quarterly (Q) PMCS according to instructions found in Chapter 4, Section Ill.
d. PRESERVATION OF EXTERIOR.
Grease or oil used as a preservative is effective for only a few days. Equip-
ment so protected must be watched for signs of corrosion.
Coat all unpainted, exposed, machined metal surfaces on exterior of semitrailer with
corrosion preventive compound (Item 8, Appendix E). If preservative listed is not
available, oil or grease (as specified in Chapter 3, Section I) may be used.
If semitrailer is being shipped overseas, additional preservatives may be required.
e. PRESERVATION OF TANK INTERIOR AND VALVES.
Levels of Preservation. There are two levels of preservation when processing tank for
storage or shipment:
Level A preservation is required for domestic or overseas shipments and any
storage outside of buildings in excess of 90 days from the date of processing.
Periodic care and preservation are required during storage.
Level B preservation is used when there is limited processing for immediate use
shipment, and for domestic or overseas shipments (excluding open deck load-
ing and any storage not to exceed 90 days from date of processing).
Preservation by purging (see paragraph 4-68) satisfies the requirements of both
Level A and Level B preservation.
If tank is purged prior to storage or shipment, no further preservation is required
to protect tank interior and valves.
Preservation by purging is the preferred method when safety regulations, per-
taining to the mode of shipment, require that the semitrailer be free of explosive
(3) Level A Preservation.
Ensure that tank is fully drained and clean. Refer to Table 8-1 of FM 10-71 to
determine if lubricating oil to be added as preservative is compatible with fuel
Fill tank with 30-55 gal. (115-208 I) of lubricating oil (Item 14, Appendix E).
Close all valves and sump drain. Close manhole and bolt closed through padlock