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Tractor Stack Valve Modifications S/N 398796 & Down
Tractor Stack Valve
Modification:
6.
Locate Replacement LH End Plate for
Stack Valve. The replacement LH End Plate is
shipped as part of Machete (See Figure 6). The
new end plate comes with a shipping plate and
gasket bolted on to it with three bolts and nuts.
DO NOT remove this Shipping Plate till after the
Load Sense elbow has been installed.
7.
Install Load Sense Elbow in End Plate.
There are 2 plugs in the Replacement End Plate.
These can be identified by the type plug used.
The Load Sense Port Pug is a solid Hex Headed
Plug; the Load Sense Bleed Off Adjustment is a
Hex Headed Plug that has a plastic removable
Plug in the center of it. If you were to remove the
plastic plug you would see a slotted screw in the
hole, this is the adjusting screw. For the current
Machete application this screw is screwed all
the way in from the factory and should remain
that way. (See Figure 6). Screw the 90 deg. # 4
Elbow into the load sense port. Tighten Elbow to
where it is pointing back (See Figure 8).
8.
Remove End Plates Shipping Plate &
Gasket. Remove 3 bolts and Nuts from shipping
plate. Carefully lift up shipping plate (See Fig-
ure 9). Make sure that Shuttle Check Disk and
the End Plate O-Rings did not stick to the Gasket
(See Figure 10). Put the Shipping Plate on the
old End Plate to protect it and the O-Rings.
.
Figure 8
Machete (JD -62,63,6420 Asy Man) 10/04
© 2004 Alamo Group Inc.
Bolt on Shipping
Plate & Gasket to
protect end plate
Bleed Off
Adjustment
Plug
Figure 6
4MJ-12MM90
(Part # 02969509)
90 Elbow Adapter
Load Sense Port
Figure 7
Figure 9
Section 5 - 4
Load Sense
Port Plug
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