Cub Cadet T2-HP - Manual (Page 7)

T2 ® 3
figure 1, T2 Hydraulic schematic
desCrIpTIOn and OperaTIOn (COnTInued)
HydraulIC sCHemaTIC
Figure 1 is a schematic of the hydraulic oil
circuit . The oil supply for the hydraulic system
of the T2 ® is also utilized for lubricating the
components of the final drive assembly.
The input shaft and pump cylinder block are
turned in one direction only by the engine/drive
belt/pulley combination. Output of the oil flow is
controlled by the direction and amount that the
variable swashplate is angled . As the pump pis-
tons compress they force the oil to flow through
one of two passageways (forward or reverse) in
the center section to the motor cylinder block
and motor shaft. Since the motor has a fixed
displacement angle it is forced to turn with the
flow of oil. As the angle of the pump swashplate
is increased the amount of oil being pumped will
increase and cause a higher speed output of the
motor . Reversing the angle of the swashplate
will reverse the direction of oil flow.
During the operation of the transaxle, fluid
is “lost” from the hydraulic loop through leak
paths designed into the product for lubrication
purposes (around pistons, under the rotating
cylinder blocks, etc.). This “lost” fluid returns
to the transaxle housing, then is pulled back
into one of the check valves depending upon
the direction of vehicle operation . All of this
oil must pass through an internal filter.
The motor cylinder block mounts onto a splined
motor shaft which drives the gear train .
The bypass feature in the T2 has a mechanical
lever which lifts the motor block off the center
section running surface. This allows oil flow
from the cylinder blocks to be discharged .