SUB-SECTION
AIR SYSTEM COMPONENTS
6. Wipe a coating of light grease on the body bore and on
3. Remove the balance piston U-cup and thrust ring. These
the face and small diameter of the assembled balance pis-
items an be easily replaced without disturbing the seal
ton. Install the balance piston in the outlet body, then
retainer, as the nylon thrust ring is split and the U-cup will
place the new barrier plate assembly in position on the
stretch the small amount necessary for removal and installa-
outlet body. Make sure the plate is set into the mating
tion. Install a new thrust ring and U-cup on the balance
counterbore of the body, and the small diameter of the
piston. Be sure the sealing surface of the U-cup is pointing
balance piston engages the bore in the bottom of the outlet
toward the retainer.
body.
8. Install the O-ring in the inlet body counterbore. Install
the outlet body on the inlet body with a slight turning
4. Install the wear shim and balance spring in the outlet
motion to seat the O-ring. Install six new body screws.
body cavity.
Figure 9C-15. Throttle Valve (36U29)
9C-17
