4-20. HYDRAULIC SYSTEM FLUSHING (CONT)
Push down and hold handle of gooseneck control valve (para. 2-6) and lower gooseneck as low as it will go.
Repeat steps 1 and 3 five times to flush gooseneck cylinders. Monitor filter indicator.
Raise gooseneck to normal running height (para. 2-18). Place gooseneck support under gooseneck and lower
gooseneck onto support.
STEERING CYLINDER FLUSHING
A drain pan must be placed to collect excess fluid drainage. Fluid collected into
drain pan should be drained into waste oil receptacle as often as needed.
Place drain pan on the ground beneath streetside platform steering cylinder (20) and partially under mainbeam to
help collect fluid that will drain onto the mainbeam and out of cylinder.