Advertisement
Pump / Drive Assembly Instructions
Installing Pump Drive
Components:
2.
Access to Crankshaft Pulley. There
are a number of ways that the Crankshaft
Pulley can be removed. It is best to See
Tractor Repair Manual for procedure to gain
access and removal of the Crankshaft Pul-
ley as recommended by Tractor Manufac-
turer.
3.
There are 2 different styles of Pul-
leys used. This means there are two differ-
ent Pulley Adapters being used. There is a
Machined Pulley with threaded holes in it
(Old Style) and there is a five spoke cast
pulley (new Style). The Five Spoke Pulley
must be replaced with a new replacement
pulley. You must check which you have
before beginning.
.
4A
Remove Factory Pulley
OLD STYLE model & S/N
JD-6415 S/N 6415M355435 & down
JD-6320 S/N 6320H361092 & down
JD-6420 S/N 6420H354699 & down
Remove Factory Pulley Adapter Spacer
(Old Style Machined Pulley (See Figure
3 Detail "B"). Remove the 4 bolts in the
center of the Crankshaft Pulley, save these
Bolts and Washers to re-use to install Pul-
ley adapter. The Tractor should be equipped
with a Spacer or a John Deer Pulley Adapter
(See Figure 3 Detail "A"). Remove the 3/8"
Spacer or Pulley Adapter that is in center of
Crankshaft Pulley. This will not be used. It
will not be required to remove Crankshaft
Pulley but center Retaining Bolt will have to
be removed.
Installing the New Pulley Adapter
Part # 02973992 (See Figure 3). Re-use
the existing 4 Bolts and Washers that were
removed from Crankshaft Pulley. Coat the
threads with Locktite and bolt Pulley Adapter
to Crankshaft Pulley. (See Figure 3). Torque
these four bolts now, as you will not be able
to later. (See Bolt Torque Chart)
Machete (JD -62,63,6420 Asy Man) 10/04
© 2004 Alamo Group Inc.
Front Cover
Plastic Plugs
Figure 1
Front Cover Removed
Pump Plate Mounting Holes
Figure 2
3/8"
Thick
3-7/8"
Dia.
Detail "A"
Mchined Style Pulley
Figure 3
Section 3 - 3
Cover
Retaining
Bolts (2)
3/8"
Thick
John Deere Pulley
Detail "B"
(Old Style)
Advertisement
