TM-5-5420-279-10
Section II. LAUNCHER
3.4 CHEST PACK
Chest pack Harness Fitting/Adjustment
3.4.1.1
The concept of the chest pack webbing harness (Figure 3. 8) is to allow the operator to
remove the chest pack easily, when not needed, without having to take the harness off.
The harness should be correctly adjusted for the user. As there is usually only one
normal user for the chest pack in a team, the harness should be adjusted to correctly suit
that user. Once this is achieved, it should not need to be adjusted again.
3.4.1.2
The correct adjustment is achieved when the two rear straps are adjusted to insure that
the cross over of the straps are approximately in the middle of the back level with the
lower part of the shoulder blades. This should mean that there is no direct load onto the
back of the neck, but the load is transmitted to the back and down to the plastic anchor
plate.
3.4.1.3
The front straps should be adjusted so that the plastic anchor plate is approximately on
the waist line this will ensure that the top of the chest pack frame is below the level of the
elbow and fore arm.
3.4.1.4
The chest pack should be fitted and the shoulder straps should be connected to the lug or
vertical part of the frame on the front of the chest pack. The straps are then adjusted to
place the joysticks at a comfortable position for the hands to rest on the front corners of
the frame and the joysticks operated with the thumb and forefinger.
3.4.1.5
The chest pack can now be removed and refitted easily when not in use. If the webbing is
adjusted correctly, the loads will not be applied to the back of the neck.
