VALVE & MTG GP-MAIN CONTROL 2123136 - Caterpillar

Rotation of carrier (19) is transmitted to sun gear (20) of the second stage reduction group. The second stage reduction group is splined to carrier (19). Sun gear (20) rotates clockwise. Clockwise rotation of sun gear (20) rotates planetary gears (11) counterclockwise. Planetary gears (11) are meshed with sun gear (20) .Since planetary gears (11) are also meshed with ring gear (22), the planetary gears walk around the teeth of ring gear (22). As planetary gears (11) rotate, the planetary gears circle around sun gear (20) clockwise. Planetary gears (11) are mounted to carrier (21) by planetary shafts (12) and roller bearings (2). The assembly of carrier (21) rotates clockwise.
Illustration 8 g00587363
Splines In Engagement (21) Carrier (second stage) (23) Sun gear (third stage) (31) Splines in engagementRotation of second stage carrier (21) is transmitted to third stage sun gear (23), which is splined to carrier (21) .Splines on third stage carrier (24) engage with teeth on the outer circumference of motor housing (9) through gear coupling (6). When the housing is held to the track frame, carrier (24) cannot rotate. The first stage and second stage planetary gears turn around the first stage and second stage planetary gear's own sun gears. In contrast, each planetary gear (3) will rotate on the planetary gear's individual axis from the planetary gear's original mounted position. This causes ring gear (22) to rotate counterclockwise.Ring gear (22) and sprocket housing (28) are held together with bolts (1). The sprocket wheel is bolted to the housing. The torque of sun gear (23) is transmitted to the housing. This causes the sprocket to rotate counterclockwise. The right track rotates in the forward direction.The Final Drive on CIPI Undercarriage Arrangements which are Based on 330C Track Type Excavators
Illustration 9 g00847597
Final Drive (1) Roller bearing (2) Planetary shaft (second stage) (3) Bolt (4) Planetary gear (second stage) (5) Roller bearing (6) Planetary gear (third stage) (7) Roller bearing (8) Planetary shaft (third stage) (9) Drive sprocket housing (10) Motor housing (11) Travel motor (12) Planetary gear (first stage) (13) Planetary shaft (first stage) (14) Cover (15) Sun gear (first stage) (16) Planetary carrier (first stage) (17) Ring gear (first stage) (18) Planetary carrier (second stage) (19) Sun gear (second stage) (20) Ring gear (second stage and third stage) (21) Planetary carrier (third stage) (22) Sun gear (third stage) (23) Output shaft (travel motor) (26) Roller bearingThe final drive reduces the rotational speed of travel motor (11). Output shaft (23) of travel motor (11) is splined to sun gear (first stage) (15) .The final drive consists of two groups. The first group