Cub Cadet 5000 Series - Manual (Page 11)

Domestic Series 5000 Hydraulics
7
3.6. If the tractor fails to achieve normal ground
speed, and the hydro pump emits an unusual
amount of noise, check for brake drag:
• Confirm that the neutral return and hydro control
linkages are correctly adjusted.
• With the tractor on a smooth, firm, level surface,
place the gear selector in neutral, release the
parking brake, and attempt to push the tractor.
• If the tractor does not roll with a reasonable
amount of effort, check the brakes for drag.
• The left and right brakes can be checked individ-
ually by jacking-up the rear of the tractor and
attempting to rotate the rear wheels. Leave the
transmission in neutral.
• If either or both brakes drag, confirm that the
linkage moves firmly and is properly adjusted.
• If the linkages are properly adjusted, and brake
drag is still present, check the pull-off springs on
the brake calipers.
• Bear in mind that both brake calipers act on a
common cross-shaft within the transmission.
With the rear wheels off the ground differential
action will still occur when the brakes are
applied, unless the differential lock is applied.
• Look for blueing on the brake rotors and free-
dom of movement when the brakes are
released.
NOTE: Complete brake adjustment procedures
can be found in the 2004 Cub Cadet Technical
C.D.
3.7. If there is no drive at all, confirm whether the
problem lies in the hydro or elsewhere.
• With the engine running, confirm that the PTO
operates when it is turned-on. This confims that
the input shaft is turning.
• On smooth, firm, level ground, with the engine
turned-off and the parking brake released:
• Place the gear selector in high range and
attempt to push the tractor. It should not roll.
• Place the gear selector in low range and attempt
to push the tractor. It should not roll.
• If the tractor rolls, the problem is gear-related.
• Place the gear selector in neutral and attempt to
push the tractor. It should roll. If it does not, the
problem may be gear or brake related.
3.8. Check the fluid at sight glass gauge on the back
of the transmission. Check the level, and com-
pare the fluid to a sample of Cub Cadet Hydrau-
lic Drive System Fluid Plus. Top-up or replace
the fluid as necessary. See Figure 3.8.
3.9. Replace the hydrostatic filter if there is any ques-
tion of it’s condition.
3.10. Visually inspect the hydraulic system filter and
the suction tube that feeds fluid to the auxiliary
pump from the sump of the transmission. If it is
kinked or crushed, replace it. See Figure 3.10.
NOTE: Drain the transmission fluid before
removing the suction tube.
3.11. Check that the set screw holding the control arm
to the hydro control shaft has not backed-out,
worn, or sheared.
Figure 3.8
Sight glass
Fill plug
Suction line feeding
auxiliary pump
Figure 3.10
Hydraulic filter
Suction tube
to auxiliary
pump