HEATER A-OIL 5R7516 - Caterpillar

Illustration 1 g00490601
Swing Frame (1) Right swing drive (2) Port (swing brake) (3) Port (swing drive) (4) Left swing driveThe swing drive consists of two sections, the swing drive gear section and the swing brake section.
Illustration 2 g00841305
Swing Drive (2) Port (swing brake) (5) Shaft (swing motor) (6) Swing brake housing (7) Friction Plates (8) Brake piston (9) Spring (10) Retention plate (11) Planetary shaft (first stage) (12) Chamber (swing pilot brake release) (13) Sun gear (first stage) (14) Roller bearing (15) Ring gear (16) Planetary gear (first stage) (17) Carrier (first stage) (18) Planetary shaft (second stage) (19) Planetary gear (second stage) (20) Sun gear (second stage) (21) Roller bearings (22) Carrier (second stage) (23) Roller bearing (24) Splines (25) Housing (26) Roller bearings (27) Pinion shaftThe swing drive gear section consists of two sets of gears for the following components:
Sun gears
Ring gears
Planetary gearsThe planetary gears reduce the rotating speed of the swing motor. The swing motor is bolted on the swing brake housing (6). The swing drive housing (25) is bolted to the upper structure. The teeth of the swing drive output pinion shaft (27) engage with the swing bearing gear which is located in the lower structure. Pinion shaft (27) provides motion to the upper structure by rotating around the swing bearing gear.The swing drive gear section consists of the following two sections:
The first section functions as a double reduction of motor speed. The first stage reduction consists of sun gear (13), planetary gears (16), carrier (17) and ring gear (15). The second stage reduction consists of sun gear (20), planetary gears (19), carrier (22), and ring gear (15) .
The second section functions as the drive for the reduced swing motor output. The second section consists of pinion shaft (27), roller bearings (23), and roller bearing (26) in housing (25) .The planetary reduction gears reduce the swing speed. The speed is reduced in a ratio of sun gear tooth numbers to ring gear tooth numbers.
Illustration 3 g00490603
Swing Drive Planetary Gears (11) planetary shaft (first stage) (13) Sun gear (first stage) (15) Ring gear (16) Planetary gear (first stage) (17) Carrier (first stage)The swing motor output shaft is splined to swing motor shaft (5). Swing motor shaft (5) has the first stage sun gear (13) on the opposite end. Planetary gears (16) on first stage carrier (17) mesh with sun gear (13). As shaft (5) rotates sun gear (13) counterclockwise, first stage planetary gears (16) rotate clockwise on planetary shafts (11). Planetary shafts (11) move counterclockwise around ring gear (15). Ring gear (15) is bolted to housing (25). First stage carrier (17) rotates counterclockwise.Splines on the inner circumference of first stage carrier (17) engage with the splines on second stage sun gear (20). This causes sun gear (20) to rotate counterclockwise. Second stage planetary gears (19) turn clockwise on planetary shafts (18). Planetary shafts (18) move counterclockwise around ring gear (15). Ring gear (15) is bolted to housing (25). The ring gear (15) causes second stage carrier (22) to