« Back to PAO to Jackson Hole, WY
Frozen Bearing
KJAC
The mechanic drew a portion of this, and I added the side view on the right along with all of the labels. At the top left, is the castellated nut that you see in the prior photos. This secures a bolt that attaches a metal fitting, that screws onto the control rod from the throttle, to the prop governor control lever. The fitting also houses the bearing which siezed. The top view, which is just a magnified view of the drawing at the left, shows that the bearing protrudes from both sides of the metal fitting. When the nut is properly tighten, the washers are firmly pressed up against this bearing. In normal operation, the bearing rotates, which allows the prop control rod to move the prop governor control lever. When the bearing siezes, rotation in the bearing stops and the throttle is extremely difficult to move.