Chapter 6. MARINE AND TERMINAL TRANSPORTABILITY GUIDANCE

TM 55-2320-279-14

CHAPTER 6

MARINE AND TERMINAL TRANSPORTABILITY GUIDANCE

Section I. GENERAL

should be inspected for their condition and ade-

6-1. Scope

quate capacity.

This chapter provides marine and terminal trans-

f. All personnel should be cautioned not to stand

p o r t a b i l i t y guidance for movement of the

HEMTTs. It covers technical and physical charac-

or walk under vehicles being lifted.

teristics of HEMTTs, as well as safety consider-

g. All lifts should have at least two tag lines at-

ations. It also prescribes the materials and guid-

tached to control the swing of the vehicles while

ance required to prepare, load, tie down, and

suspended.

unload the HEMTTs.

6-3. Water Shipment

6-2. Safety

Marine transport of the HEMTTs can be accom-

In addition to the safety precautions contained in

plished without significant restrictions because of

chapter 3, the following should be noted, as appli-

vehicle dimensions or weight. Hold-by-hold analy-

cable:

sis for hatch length, stowage, and height and boom

a. If ammunition and/or explosives are to be

capacity is required for cargo ships, with most

transported with the vehicles, the activity offering

s h i p s having holds capable of stowing the

the cargo for transport must notify the carrier in

HEMTTs. Except for the LARC V and LARC XV,

compliance with paragraph 2-7, AR 55-228.

logistics-over-the-shore (LOTS) craft can carry the

b. Ammunition, explosives, and vehicles will be

HEMTTs.

handled and stowed in accordance with provisions

contained in Title 46/Title 49, Code of Federal

NOTE

Regulations.

The methods described in this chapter are

c. Fire extinguishers must be available during

recommended procedures for lifting and

loading and unloading operations.

securing HEMTTs. Other methods of han-

d. Vehicle fuel tanks must not be more than

dling and stowing may be used provided

one-fourth full.

they will ensure safe delivery without

e. All slings, lifting rings, shackles, and other

damage.

items used in loading and discharge operations

Section Il. LOADING AND SECURING

hicles with fuel tanks three-quarters full

6-4. General Rules for Stowing

when vehicles are loaded on vessels that

a. General. Whenever possible, the HEMTTs

are adequately ventilated by power blow-

should receive the protection of below-deck stow-

ers, such as the roll-on/roll-off (RORO)

age. In general, good stowage of vehicles means ve-

vessels.

hicles are placed fore and aft as close `together as

practicable with minimum spacing between outer

b. Lifting. Lifting points on the HEMTTs are

vehicles and sweatboards. Breakable parts are pro-

identified in figures 22 through 25. Forward lift-

tected, and spare parts are in or near the vehicles.

ing provisions are the same on all vehicles, but

Vehicles are stowed in neutral with brakes set and

rear lifting provisions are different on each model.

battery terminals disconnected and are secured

The M977 and M985 requires removing the rear

with adequate blocking and lashing. Securing in-

cargo bed end panel. The M978 rear lift points are

cludes blocking of wheels on all four sides so that

reached by opening access panels on top of the

the vehicles cannot move in any direction; bracing

pump and reel compartment and require special

of individual vehicle blocks to bulkheads, stan-

shackles (fig 62). The M983 lift points are at the

chions, and other vehicle blocks; and lashing of ve-

rear ends of the frame. The M984E1 lift points are

hicle with wire rope or chain.

at the top of the recovery crane unit. Each differ-

ent model will require different sling leg lengths

NOTE

for level lifting. A typical lifting diagram for the

Department of Transportation Exemption

HEMTT is shown in figure 6-1, and a drawing of

(DOT-E-7280) authorizes DOD to ship ve-

6-1