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Pump / Drive Assembly Instructions
Installing Pump Drive
Components:
(continued)
4C.
Install Pulley Adapter. The new Pulley
adapter to be used with Replacement Pulley
Part # 02979857 is a round plate with 4
threaded holes and four non-threaded holes in
it. Notice this pulley adapter will not have a
center hole in it (See Figure 8). The Pulley
retaining bolt must be tightened before this
adapter is installed because you will not be
able to get to the Pulley retaining Bolt after it is
installed. The Non-treaded holes are used to
mount the Adapter to the Pulley using bolts #
02979791 (10mm 1.5 P X 35mm Gr.10.9) &
Lockwasher # 00755954 (10 mm).
5.
Driveshaft Assembly. The drive shaft is a
two piece Assembly, an inner and outer shaft
assembly (See Figure 9). The Shaft End has a
four bolt flange yokes on it that connect to the
Crankshaft Pulley Adapter. The Tube end has a
splined clamp yoke on it that connects to the
Pump. This Drive Shaft connects to the New
Style or Old Style Pulley Adapter. Note that the
Universals of the Driveshaft are in time. When
installed in tractor they should be in time as
shown.
6.
Install Shaft End of Driveline / Engine end.
Install the Shaft 1/2 Assembly w/ Flanged Yoke
into the Engine compartment of Tractor, install it
from the LH front Side down and under radiator.
(See Figure 10). This needs to be installed this
way because the Flange Yoke will not go through
the Crankshaft access hole in the front of the
Tractor (See Figure 2). Bolt the Flange Yoke to
the Pulley Adapter using the four 7/16" X 1-1/4"
Bolts (Part # 02976344), use the four Lock Wash-
ers (Part # 00022200), put Locktite on the threads
of the Bolts and install them into Pulley Adapter.
To Tighten these four Bolts, use a long extension
and go through the front Crankshaft Pulley ac-
cess hole in front of Tractor. Do Not use bolts
longer than 1-1/4" long, longer bolts will damage
Crankshaft Pulley.
Machete (JD -62,63,6420 Asy Man) 10/04
© 2004 Alamo Group Inc.
Figure 7
Apply a light bead
of retaining com-
pound around the
leading edge of the
crankshaft nose.
Figure 7A
4
Non-Threaded
Holes
Figure 8
Section 3 - 5
Replacement
Washer Part
#02979829
Crankshaft Nose
4 Threaded
Holes
Pulley Adapter
Part # 02979790
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