II-89
WSM Minor Change II Service Engineering Section
11. Thrust washer: Additional
(due to the holder's modified surface treatment)
2. Swash plate: Lighter-weight
4. Retainer plate: Press-worked
3. Retainer holder: Change
in material and heat treatment
1. Base plate:
Applicable for automatic
dual-speed setting
5. Dual-speed piston:
Shoeless configuration with
modified surface treatment
50. Sun gear: Snap ring eliminated
15. Ring nut: Change in material
10. Holder:
Surface treatment eliminated,
lighter-weight
13. Drive gear: Reconfigured
12. Thrust plate: Reconfigured
MODEL: MAG-33V-550E
(For 5.5-ton shovel travel)
MODEL: MAG-33V-550F
(For 5.5-ton shovel travel)
h. Travel motor minor change: KX121-3SD, 161-3SD, U45-3SD
1. Motor change points
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