1. Gather necessary parts:
- Power steering gear box (including Pitman arm and sector shaft)
- Power steering pump
- Power steering reservoir
- High pressure power steering hoses
- Low pressure power steering return hose
- Power steering fluid
- Steering shaft coupler (if required)
- Mounting brackets for power steering components
- Necessary hardware (bolts, nuts, washers)
2. Remove the manual steering gearbox:
- Disconnect the steering linkage from the manual steering gearbox.
- Remove the bolts holding the manual steering gearbox in place.
- Carefully remove the manual steering gearbox from the vehicle.
3. Install the power steering gearbox:
- Mount the power steering gearbox using the mounting brackets.
- Ensure the sector shaft of the power steering gearbox aligns with the Pitman arm.
- Connect the steering linkage to the Pitman arm of the power steering gearbox.
4. Install the power steering pump:
- Mount the power steering pump in a suitable location.
- Connect the drive belt or gear to the power steering pump to drive it.
- Connect the pressure and return hoses to the power steering pump.
5. Install the power steering reservoir:
- Mount the power steering reservoir in a convenient location.
- Connect the return hose to the reservoir.
6. Fill the power steering system with fluid.
7. Bleed the power steering system to remove air:
- Follow the specific bleeding procedure for the power steering system in your Peterbilt 359. This usually involves turning the steering wheel from lock to lock while the engine is running with the reservoir open to allow air to escape.
8. Test the power steering system:
- Start the engine and check for any leaks in the power steering system.
- Turn the steering wheel to ensure that the power steering system is functioning correctly and providing assistance.
9. Adjust the steering:
- With the engine off, turn the steering wheel from lock to lock to center the steering gear.
- Adjust the length of the steering shaft to ensure proper alignment of the steering wheel.
Remember that this is a general overview, and the specific steps may vary depending on the exact model and configuration of your Peterbilt 359. It is recommended to consult with a professional mechanic or refer to the vehicle's service manual for detailed instructions and safety precautions.
