641 / 1575
PROPELLER SHAFT
15
PROPELLER
SHAFT
6. To remove the opposite bearing assembly, turn
the yoke over and straighten the cross in the
open cross hole. Then carefully press on the
end of the cross such that the other bearing
assembly moves straight out of the bearing
cross hole.
INSPECTION
1. Check the U. J. cross for defects like Brinelling
and End Galling.
2. Check for excessive looseness across the ends
of the bearing assemblies and
trunnion this
looseness should not exceed 0.15 mm
maximum. If found to be more, replace the U. J.
cross.
3. Check the shaft for damage, bent tubing or
missing balance weights. Make certain there is
no build up of foreign material on the shaft such
as undercoat or concrete. If any of these are
found then, remove it carefully to avoid damage
to the propeller shaft. If shaft is found bent,
damaged replace it.
4. Check for run out. Check tube for ovality.
5. Remove the end yoke from the propeller shaft
and place in a soft jawed vise to inspect the
cross hole surfaces. Raised metal can be
removed with a rat tail or half round file. Emery
cloth should be used to remove all rust and
corrosion from cross hole bores.