COMPONENT OPERATION / Travel Device TRAVEL REDUCTION GEAR The travel reduction gear is a three-stage reduction planetary gear type. The travel motor rotates shaft (7). This rotation is transmitted to third stage carrier (2) and ring gear (1) via first stage planetary gear (8), first stage carrier (6), second stage sun gear (5), second stage planetary gear (9), second stage carrier (4), third stage sun gear (3) and third stage planetary gear (10). Third stage carrier (2) is fixed to by housing (13) and does not rotate. Ring gear (1) is secured to drum (12) with the bolt or pin. Sprocket (11) is bolted to drum (12), and are rotated with ring gear (1) together.
First Stage Second Stage Third Stage ZAXIS450-3, 450LC-3, 470H-3, 470LCH-3 T111-03-04-011 ZAXIS500LC-3, 520LCH-3 T1J1-03-05-002 T1J1-03-05-009 1 - Ring Gear 5 - Second Stage Sun Gear 8 - First Stage Planetary Gear 11 - Sprocket 2 - Third Stage Carrier 6 - First Stage Carrier 9 - Second Stage Planetary Gear 12 - Drum 3 - Third Stage Sun Gear 7 - Shaft 10 - Third Stage Planetary Gear 13 - Housing 4 - Second Stage Carrier T3-5-2 1 2 3 13 12 10 9 4 11 1 2 3 4 13 12 10 9 11 4 5 6 7 8 Pin