3-23. NEEDLE VALVE - Continued
If 'O' rings or back-up washers are damaged, remove 'O rings and back up washers.
Replace 'O' rings or back-up washers.
If 'O' rings are not defective and some other fault exists, replace needle valve.
Install repaired or new needle valve (1) in manifold (2) and tighten.
END OF TASK