1.109 HYDRAULICS Dismantling 1. Remove the four cap head screws (1) attaching the steering valve (2) to the adapter (6). Remove and discard the O-ring seals (3). 2. Remove the two cap head screws (7) attaching the adapter (6) to the steering unit (4). Remove and discard the O-ring seals (5). 3. Examine the steering valve for damage to the block or solenoids and electrical connectors. If any damage is found, the valve must be replaced as a unit. 4. Examine the adapter for damage to the block. If any damage is found, the adapter must be replaced. 5. Examine the steering unit for damage to the block. If any damage is found, the unit must be replaced. Assembly 1.
Assemble the steering valve assembly in the reverse order to dismantling. 2.Use new O-rings during assembly. 1. Cap head screw – M5 x 45 2. Steering valve 3. O-ring 4. Steering unit 5. O-ring 6. Adapter 7. Cap head screw – M10 x 46 3.Tighten the screws progressively in rotation.