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Model List:
- 821F Tier 4B (Final) Wheel Loader
- 921F Tier 4B (Final) Wheel Loader
- 1. FourWheel Drive (4WD) system 23
- 1.1. Drive shaft 314
- 2. Front axle system 25
- 2.1. Powered front axle 100
- 2.2. Front bevel gear set and differential 102
- 2.3. Final drive hub, steering knuckles, and shafts 108
- 3. Rear axle system 27
- 3.1. Powered rear axle 100
- 3.2. Rear bevel gear set and differential 106
- 3.3. Planetary and final drives 120
- 4. Brakes and controls 33
- 4.1. Hydraulic service brakes 202
- 4.2. Parking brake or parking lock 110








