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3. Pivot assembly re–assemble.
A. Press ball joints into pivot casting. Bottom ball
joint first.
B. Insert and orientate grease fittings to face up-
ward.
C. Install retaining rings on back side of ball
joints.
D. Clean any debris, oil, or dirt from tapered joints
on span casting and tapered sleeve. Any nicks
should be filed off.
E. Install pivot casting into chamber housing with
spacer plate on top and bottom of pivot casting.
F. Install pilot pin into 5/8 inch (16 mm) diameter
"pivot" hole and drive flush with top surface of
chamber housing.
G. Install eccentric cam through assembly with
identification mark facing forward. Use a small
amount of anti–seize compound on the diameter
interface between eccentric cam and pivot cast-
ing.
H. Install 7/16 inch grade 8 fasteners (and thick
washers) and tighten assembly such that eccen-
tric cam can still rotate pivot casting in chamber
housing.
I. Install span casting over ball joints in pivot
casting.
J. Use a soft mallet, tap tapered sleeve into place
in top ball joint position.
K. Torque ball joints as follows:
IMPORTANT: Failure to torque ball joints as fol-
lows can result in premature wear of ball joints
due to pre–load applied to ball joint sockets.
Bottom ball joint nut
Top ball joint nut
Bottom ball joint nut
Top ball joint nut
NOTE: It is NOT recommended to use slotted
nuts on ball joints due to the need to over tighten
or back–off slotted nuts and to align cross holes
for use with a cotter pin.
Contour 82 Cutting Unit
50 ft–lbs (7 Kgm)
50 ft–lbs (7 Kgm)
125 ft–lbs (17 Kgm)
125 ft–lbs. (17 Kgm)
Page 10 – 16
6
4
5
Figure 25
1. Pivot casting
2. Pivot pin
3. Eccentric cam
4. Ball joint
Groundsmaster 3000/3000–D
Rev. A
3
2
7
1
4
5. Span casting
6. Tapered sleeve
7. Pivot spacer (2)
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