HYDRAULICS 1.107 Checking the steering system Steering cylinder (15) and (19) 1. Raise and securely support the front axle. 2. Turn steering fully to left. 3. Disconnnect hose from adapter on right hand end of cylinder 4. Start the engine and operate steering wheel fully left to apply maximum hydraulic pressure to cylinder. Make sure no oil flows from open right hand connection. 5. Stop engine, connect hose to right hand hose to adapter and repeat above check on left hand side of cylinder. 6. Repeat all above checks on rear axle steering cylinder. 7. Start engine and bleed the hydraulic lines free of air.
Steering unit (OSPF) (21) Start the engine and run until oil is at normal operating temperature and any air is purged from system. Set engine at maximum rev/min, turn the steering wheel until the steering stops make contact. If the steering wheel can be turned, the rotor, spool or shock valves are faulty and the steering unit must be replaced. Servicing Servicing is normally limited to the replacement of the three main components (steering unit, adapter and steering valve) and the seals between these components.