TM 5-3895-383-24
Illustration 36
Eccentric Weight Cross Section (High Amplitude)
(7) Steel shot.
Eccentric weights (1) and (2) are partially filled with steel shot
(7). When the vibratory switch is placed in the HIGH
AMPLITUDE mode, the eccentric weights rotate in one
direction. The steel shot is captured in one area of the weight
compartment, as shown above.
The weight of the steel shot in this position increases the fixed
eccentricity of the weights. The drum assembly will then
vibrate in the HIGH AMPLITUDE mode.
Illustration 37
Eccentric Weight Cross Section (Low Amplitude)
(7) Steel shot.
When the vibratory switch is placed in the LOW AMPLITUDE
mode, the eccentric weights rotate in the opposite direction.
This causes the steel shot (7) to be captured in the opposite
area of the weight compartment, as shown above.
The weight of the steel shot in this position offsets the fixed
eccentricity of the weights. This causes the drum assembly to
vibrate in the LOW AMPLITUDE mode.
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