Cub Cadet Domestic Series 7000 Service Manual page 23

8.5. Control Linkage Description:
• The feedback rod and link assembly governs the
motion of the lift arms. It transmits motion from
the lift arms back to the pin that provides the ful-
crum point that the bottom end of the feedback
link pivots on.
• A pin on the operator controlled linkage engages
the top end of the feedback link.
• The valve link is connected to the center point of
the feedback link.
• The control input to the valve is determined by
the balance between the two ends of the feed-
back link.
• As the arms aproach the position set by the
operator controlled lever, the feedback rod
moves the feedback link back to a position that
returns the control valve to neutral.
8.6. If a high pitched squeal emanates from the con-
trol valve after repositioning the lift arms, the
feedback rod is not working properly.
8.7. Inspect the feedback rod and link. If there is any
sign of damage (bent rod, worn ferrule, stripped
threads, etc....) or corrosion, repair the linkage.
See Figure 8.7.
Operator
controlled
linkage
Feedback
link
Feedback
rod
Fulcrum point
(moves with feedback rod)
Figure 8.7
8.8. The length of the feedback rod is not adjustable.
Only the load on the compression springs at
each end is adjustable. The locking nuts should
each be.25 inch (.65 cm.) from the end of the
rod.
Control input to valve
19
Domestic Series 7000 Hydraulics
8.9. The category 1 three point hitch system on the
domestic Series 7000 tractor should be capable
of lifting 950 lbs. (430 Kg.), 24 in. (61 cm.)
behind the hitch. If it does not perform as
designed, use the following procedure to diag-
nose it.
8.10. Confirm that the lift cylinder control valve is get-
ting pressure from the steering pump:
8.11. Remove any rear mounted attachments that are
supported by the lift arms or will interfere with
access to the lift cylinder and control valve.
8.12. Lift and safely support the rear of the tractor.
8.13. Remove the right rear wheel using a 21mm
wrench.
8.14. Lower the lift arms to the bottom of their travel,
and confirm that the lift cylinder is fully retracted.
See Figure 8.14.
Figure 8.14
8.15. Disconnect the flexible hydraulic line from the
bottom of the control valve using a 3/4" wrench
and a 5/8" wrench.