MCi Crusader II 1989 Maintenance Manual page 456

Date 1-1-89 · Page 14-2
MC-9. MAINTENANCE MANUAL
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BOLT
148-1-28
RADIAL LINE ON NUT
AT 60° COUNTER CLOCKWISE
FROM DOT ON NUT--
GRADE 8 NUT
OR
PART NO.
19-3-162
6 GROOVES IN HEX NUT
Figure 14-2. Propeller Shaft Flange Bolts and Nuts.
DISASSEMBLY OF UNIVERSAL JOINTS
Bend tangs of lock plate. Unscrew capscrews and remove
lock plate. To remove the needle bearings and retaining cap
subassembly use a large pair of channel tock pliers on retaining
cap edges, turn retaining cap and bearing subassembly at the
same time lifting upward to remove the subassembly from the
journal trunnion diameter and out of the yoke hole. Turn the
joint over and tap the exposed end of the journal cross until the
opposite needle bearing is free. Use a soft round drift with flat
face about 1 / 32" (. 79 mm) smaller in diameter th~n the hole in
the yoke.
Remove the journal cross by sliding i! to one side of the yoke
and tilting it over the top of the yoke lug.
CLEANING AND INSPECTION
Thoroughly clean grease from bearings, journals, and other
parts. Clean all lubricant passages in the journal, and the lubri-
cation fittings. Needle bearing assemblies may be soaked in
cleaning solution to soften particles of hard grease. It is
extremely important that bearing assemblies be absolutely
clean, since even very small particles of dirt or grit can cause
rapid bearing wear. Do not attempt to disassemble needle
bearings.
Bearing journal areas should be inspected for roughness or
grooving.
If
light honing does not remove roughness, the entire
bearing assembly should be replaced. Excessive wear of the
needle bearings is indicated if the needles drop out of the
retainer, or if marks are present on the journal bearing surface.
Inspect yokes for cracks, wear or distortion.
REASSEMBLY
Pack needle bearing assemblies with clean grease. Insert
one trunnion of the journal into the yoke as far as possible from
the inside, and tilt until opposite trunnion clears the yoke and
drops into position. Install lubrication fittings and lubricate bear-
ings approximately 1 / 3 full with the lubricant specified in Sec-
tion 10.
Insert bearing assemblies from outside of yoke and tap into
place with plastic hammer. Do not use a steel hammer for this
purpose. The joints should move freely in the bearings and not
bind. Also. if new needle bearing assemblies are not being
installed, care should be taken to replace bearing assemblies in
the same locations from which they were removed. Install bear-
ing caps, new lock straps. and capscrews. Tighten capscrews
firmly then lock screws by bending lock straps against screw
heads.
LUBRICATION
UNIVERSAL JOINTS
To insure proper lubrication of all four bearing assemblies
on universal joints, it is essential to add lubricant until it appears
at all journal cross bearing seals. See figures 14-3 thru 14-6.
This assures removal of dirt particles and other contaminants
that may find their way into the bearings and indicates that the
bearings are fully lubricated.
Do not assume that bearing cavities have been filled with
new lubricant unless flow is noticed around all four bearing
seals.
Figure 14-3. Propeller Shaft Grene Nlppln and Mounting
Bolts.