Cub Cadet 5000 Series - Manual (Page 28)

Domestic Series 5000 Hydraulics
24
9.16. Unbolting the loader valve bracket from the
frame of the tractor will provide additional
wrench clearance between the pivot bracket and
the fender. This can be done with a 1/2” wrench.
See Figure 9.16.
9.17. It is necessary to unbolt the pivot bracket
assembly from the loader valve in order to get a
wrench on the relief valve adjustment screw.
The pivot bracket can be unbolted using a 3/8”
wrench. See Figure 9.17.
9.18. Once access is gained to the adjustment screw,
index the screw, jam nut, and housing using a
marker.
9.19. Loosen the jam nut using a 7/8” wrench and turn
the adjuster screw using a 7/16” wrench.
See Figure 9.19.
9.20. Make adjustments to the relief valve in single-
facet increments:
• Loosen the jam nut.
• Make adjustment: 1/6th turn or less.
• Tighten jam nut.
• Install pivot bracket.
• Test relief valve pressure.
• Repeat as necessary.
• DO NOT “crank-up” the pressure beyond 1,500
PSI (103 Bars).
• Install the fenders when adjustment is com-
pleted.
9.21. The pressure readings at both sets of ports
should respond equally to adjustments made to
the relief valve. If there is substantial difference
between the pressures found at the two sets of
ports, there is an internal problem with the
loader valve.
9.22. If the loader valve does not respond to adjust-
ment, or does not perform as described in this
section:
• Confirm that the pressure delivered to the loader
valve is adequate, and if not, why not. -or-
• Replace the valve.
Figure 9.16
Loader valve bracket
Figure 9.17
Pivot bracket
Loader valve bracket
Adjustment screw
Jam nut
Figure 9.19