Cub Cadet 2000 Series - Manual (Page 70)

2000 Series Tractors
64
Symptom Root problem Mechanical cause Recommended action
Complete loss of
drive Loss of control input Inoperative pedal linkage or
control arm not moving trun-
nion shaft Visually inspect linkage and
force-check the control arm/
trunnion connection.
Loss of power to
hydro pump Drive shaft and couplings to
engine and Transmission Inspect and force -check drive
shaft and coupling. May require
drive shaft removal.
Sheared input shaft at hydro
pump Remove drive shaft and force-
check input shaft (push/pull/
turn). May need to remove
charge pump cover to confirm
shaft rotation.
Loss of hydraulic
pressure Bypass valve open Check position of bypass con-
trol rod. Check for proper move-
ment of the linkage and valve
plunger.
Low/no hydraulic fluid Check the transmission's dip-
stick
Restricted flow to charge
pump Check external parts: pick-up
tube, fluid filter (Cub Cadet P/N
723-3014). NOTE: fluid & filter
replacement is a reasonable
first step
Failed charge relief valve Remove and inspect charge
relief valve.
Failed charge pump Remove charge pump cover for
physical inspection
2 completely inoperative
charge check valves (very
unlikely scenario) Remove and inspect charge
valves.
Mechanical drive fail-
ure Pinion gear/bevel gear failure The brake rotor is on the same
shaft that carries the bevel
gear. If the brake rotor turns in
response to drive inputs, but the
wheels do not, the problem is
down-stream of the bevel gear
Ring gear, differential, or axle
failure See cell above
Wheel hub not driven by axle Inspect and force-check wheel
hub
Loss of drive in For-
ward only Loss of hydraulic
pressure in forward
circuit Completely inoperative
charge relief valve Remove and inspect charge
check valves.