F 550 2WD Super Duty V10-6.8L VIN Z Bi-Fuel (2001)
5. NOTE: If the unit has a poppet adjusting screw and sealing nut that need to be replaced, remove and discard them.
With the vehicle unloaded, the engine off and the wheels in the straight-ahead position, remove and discard the fixed stop screw, if so
equipped, and the washer from the lower end of the housing.
6. Install the adjusting screw and the sealing nut assembly (without moving the nut on the screw) into the housing until the nut is firmly against
the housing. Tighten the sealing nut against the housing.
7. CAUTION: Do not mix fluid types. Mixing transmission fluid, motor oil, or other hydraulic fluids will cause seals to deteriorate faster.
Fill the power steering reservoir with the specified fluid, Motorcraft MERCON(R) ATF XT-2-QDX or MERCON(R) equivalent.
8. Place a jack under the center of the front axle and jack up the front end of the vehicle so the steering axle tires are off the ground.
9
Start the engine and let it run at idle speed.
10. Note which output shaft timing mark is nearest the housing piston bore.
11. Turn the steering wheel to make right-hand turn (which makes the pitman arm turn in a counterclockwise direction toward the poppet adjusting
screw). Turn in this direction until axle stop contact is made.
12. Pull hard on the steering wheel (put 30 pounds of rim pull on a 20-inch diameter steering wheel) after the axle stop is contacted.
13. Turn the steering wheel in the opposite direction (end of timing mark away from the adjusting screw) until the other axle stop is contacted.
14. Pull hard on the steering wheel (put 44 pounds of rim pull on an 18-inch diameter steering wheel).
15. Release the steering wheel and shut off the engine. Do not steer again until Step 18 is completed.
16. Loosen the sealing nut and back out the adjusting screw until it is past the nut. Tighten the sealing nut against the housing.
17. Start the engine and let it idle.
