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Model List:
- 521F Tier 4B (Final) Wheel Loader
- 1. Hydraulic systems 35
- 1.1. Hydraulic systems 000
- 1.2. Reservoir, cooler, and filters 300
- 1.3. Variable displacement pump 106
- 1.4. Main control valve 359
- 1.5. Pilot system 357
- 1.6. Hydraulic fan drive cooling system 752
- 1.7. Hydraulic hand control 355
- 1.8. Front loader arm hydraulic system 701
- 1.9. Front loader bucket hydraulic system 723
- 1.10. Tool quick coupler hydraulic system 734
- 2. Frames and ballasting 39
- 2.1. Frame 100
- 3. Steering 41
- 3.1. Hydraulic control components 200
- 3.2. Cylinders 216
- 3.3. Auxiliary steering 910
- 4. Wheels 44
- 4.1. Front wheels 511
- 4.2. Rear wheels 520
- 5. Cab climate control 50
- 5.1. Heating 100
- 5.2. Air conditioning 200








