Driveshaft Cross and Bearing Service
1.
moval in this section).
Remove driveshaft from aerator (see Driveshaft Re-
5. Make sure that assembled joint moves without bind-
ing. Slight binding can usually be eliminated by lightly
rapping the yoke lugs with a soft faced hammer. If bind-
ing continues, disassemble joint to identify source of
binding.
IMPORTANT: When placing yoke in vise, clamp
lightly on the solid part of the yoke to prevent yoke
damage. Also, the use of a vise with soft jaws is rec-
ommended.
6. If driveshaft halves were separated during cross and
bearing service, note that splines on shaft and tube have
a blind spline to ensure alignment of end yokes when the
driveshaft is assembled. Align blind spline in shaft and
tube when assembling driveshaft halves.
2.
secure bearings in each yoke. Remove yoke from vise.
Lightly clamp yoke in vise. Remove snap rings that
IMPORTANT: Yokes must be supported when re-
moving and installing bearings to prevent damage.
7.
Install driveshaft to aerator (see Driveshaft Installa-
tion in this section).
3.
Use a press to remove cross and bearings from
yokes:
4
A. Place a small socket against one bearing and a
large socket against the yoke on the opposite side.
3
B. While supporting the large socket, apply pres-
sure on small socket to partially push the opposite
bearing into the large socket.
1
C. Remove yoke from press, grasp partially re-
moved bearing and tap on yoke to completely re-
move the bearing.
D. Repeat process for remaining bearings.
E. Thoroughly clean and inspect all components.
To install new cross and bearings:
3
2
4.
Figure 39
A. Apply a coating of grease to bearing bores of end
yoke and shaft yoke. Also, apply grease to bearings
and seal of bearing assembly. Make sure that all
bearing rollers are properly seated in bearing cage.
1.
2.
End yoke
Cross and bearing kit
3.
4.
Snap ring (4 used)
Shaft yoke
B. Press one bearing partially into yoke.
IMPORTANT: Take care when installing cross
into bearing to avoid damaging bearing seal.
C. Carefully insert cross into bearing and yoke.
D. Hold cross in alignment and press bearing in until
it hits the yoke.
E. Carefully place second bearing into yoke bore
and onto cross shaft. Press bearing into yoke.
F. Install snap rings to secure bearings in place.
G. Repeat procedure for other yoke.
H. Grease cross until grease comes out of all four (4)
bearing cups.
Coring Head
Page 4 − 38
ProCore 864/1298
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