HARNESS AS- 5255899 - Caterpillar

Illustration 1 g00570891
Vibratory drum assembly (1) Eccentric weight (2) Eccentric weight (3) Drive shaft (4) Vibratory motor (5) Coupling shaft (6) Vibratory supportVibratory action for the machine occurs at the drum assembly. Drive shaft (3) is connected to the vibratory motor (4). Eccentric weights (1) and (2) are connected by the coupling shaft (5) .The vibratory motor will cause the drive shaft (3), eccentric weight (2), coupling shaft (5), and eccentric weight (1) to rotate when the operator has moved the vibratory system to the ON position. The rotation of the eccentric weights creates the desired vibratory action of the drum assembly.
Illustration 2 g00451066
Eccentric weight cross section (High amplitude) (7) Steel shotEccentric 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 increase the fixed eccentricity of the weights. The drum assembly will then vibrate in the HIGH AMPLITUDE mode.
Illustration 3 g00451068
Eccentric weight cross section (Low amplitude) (7) Steel shotWhen 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.Note: In order to achieve the proper shift of the shot, the weights must accelerate quickly. The acceleration of the weights should occur in less than 5 seconds, once the vibratory system has been operated for one half hour.