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Tractor Stack Valve Modifications S/N 398797 & UP
Tractor Stack Valve Hose
Connections:
1.
Clean the Area around Stack Valve on rear of
Tractor. The area around the Stack Valve on Tractor
must be cleaned of all dirt before any work is per-
formed; NO DIRT or any contamination can be al-
lowed to get in Hydraulic System at all. If Hydraulic
System is contaminated it will be damaged.
2.
Identify the Pressure and Return Ports on the
new Spacer Block of Stack Valve. These are located
on the Stack valve spacer in the rear of the Tractor.
The Pressure and Return Ports will have Plugs in
them (See Figure 28). Remove the plugs and using
an Allen Wrench remove the Allen Head Plugs one at
a time (See Figure 28).
3.
Install Straight Adapters. The Plugs will be
replaced with the two Straight Hydraulic Adapters
(Part # 02980922), tighten these Adapters to proper
torque now but leave plastic caps on them. See Chart
on Page 5-10 to torque specs. The Pressure and
return has # 8 adapters and the load sense has # 4 (P/
N 02980923)
4.
Install Elbow Adapters. Attach two Elbow Adapt-
ers (Part # 02761100) to the two Straight Hydraulic
Adapters. Tighten these Elbows with them pointing
down, (See Figure 34) leave the plastic caps on them
until you are ready to install the hoses (See Figure 34)
Install the Elbow Adapter for the load sense port (P/N
02962022)
Figure 32
Machete (JD -62,63,6420 Asy Man) 10/04
© 2004 Alamo Group Inc.
Figure 30
John Deere Optional 3 Remote Optpion
Figure 31
Figure 33
Section 5 - 14
Old Style S/N 398796
Dec. 2003 & Down
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