CAP 1397941 - Caterpillar

Illustration 1 g06069295
Main Screed
(1) Tamper motorThe screed is equipped with three tamper motors (1). One tamper motor is mounted on the right side of the main screed. A tamper motor is also on each screed extender. The main screed tamper motor is shown.Tamper motor (1) is a gear-type hydraulic motor with a fixed displacement. The motors are driven in a single direction.
Illustration 2 g06069302
Front of Screed
(2) Drive shaft
(3) Eccentric follower
(4) Tamper bar
(5) Intermediate drive shaftNote: The front deflector plates are removed in the illustration above to show the tamper components.Tamper motor (1) turns drive shaft (2) which operates set of eccentric followers (3). The followers convert rotational motion into linear motion. Tamper bar (4) is connected to the followers. When the motor rotates, the tamper bar oscillates in a vertical direction. The speed of the motors determines the tamper frequency.The main tamper motor drives right tamper bar (4) on the main screed (shown). The left tamper bar is driven through intermediate drive shaft (5).