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Model List:
- 850M Tier 4B (Final) Crawler Dozer
- 1. Hydraulic systems 35
- 1.1. Hydraulic systems 000
- 1.2. Reservoir, cooler, and filters 300
- 1.3. Fixed displacement pump 104
- 1.4. Main control valve 359
- 1.5. Auxiliary hydraulic valves and lines 525
- 1.6. Dozer blade cylinders 741
- 2. Tracks and track suspension 48
- 2.1. Track frame and driving wheels 130
- 2.2. Tracks 100
- 2.3. Track tension units 134
- 2.4. Track rollers 138
- 2.5. Dropbox and final drive 140








