The BMP 851 steers via a central articulation joint (40° each direction). A single double-acting hydraulic cylinder provides steering.
Steering adjustment:
Articulation joint maintenance:
1. Comprehensive Safety Section
2. Detailed Hydraulic Flow Diagrams
3. Step-by-Step Disassembly of the Exciter
4. Torque Specifications
5. Parts Interchangeability
| If you need to... | The manual helps? | Notes | | :--- | :--- | :--- | | Replace a hydraulic hose | Yes | Gives exact fitting torque and fluid type (ISO VG 46) | | Adjust the steering linkage | Yes | Shows eccentric adjustment on the orbitrol valve | | Replace the vibration bearing | Yes | Best section of the manual – use it | | Diagnose a no-start electrical issue | No | Get a multimeter and ignore the manual's wiring diagram | | Rebuild the propel pump | No | Only shows removal/installation, not internal repair |
The BMP 851 steers via a central articulation joint (40° each direction). A single double-acting hydraulic cylinder provides steering.
Steering adjustment:
Articulation joint maintenance:
1. Comprehensive Safety Section
2. Detailed Hydraulic Flow Diagrams
3. Step-by-Step Disassembly of the Exciter
4. Torque Specifications
5. Parts Interchangeability
| If you need to... | The manual helps? | Notes | | :--- | :--- | :--- | | Replace a hydraulic hose | Yes | Gives exact fitting torque and fluid type (ISO VG 46) | | Adjust the steering linkage | Yes | Shows eccentric adjustment on the orbitrol valve | | Replace the vibration bearing | Yes | Best section of the manual – use it | | Diagnose a no-start electrical issue | No | Get a multimeter and ignore the manual's wiring diagram | | Rebuild the propel pump | No | Only shows removal/installation, not internal repair |
