Hydraulic System, Brakes

Fluid Pump
A variable displacement pump supplies fluid under pressure to the hydraulic system. The torque converter cover rotates a driveshaft that operates the pump. The pump assembly has the following parts:
- Body (part of the main control)
- Cover
- Rotor with vanes and related parts








- Pivoting bore ring with a pump priming spring

Filter
Fluid in the sump area formed by the transaxle pan flows through a filter to the pump assembly. A magnet attached to the transaxle pan collects unwanted metallic material.
A thermostatic fluid control valve prevents foaming of fluid by maintaining a sump level below the rotating components.
The thermostatic fluid control valve stores fluid in the area of the main control when the fluid expands due to temperature. When the fluid is cold, the valve allows more fluid from the main control area to return to the sump.





The transmission fluid level check is correctly carried out when the fluid temperature is hot.

Main Control
The hydraulic system has a main control assembly. The pump assembly, hydraulic control valves and electro-hydraulic actuators are located in the main control.
Gaskets are used for the separator plate between the pump body and valve body. The separator plate between the valve body and chain cover has integral gaskets.

Accumulators
The hydraulic system has accumulators in circuits for five apply components. Each accumulator has a piston (with seal and spring) positioned on a hollow shaft.
The chain cover and side of the transaxle case contain three accumulators:
- neutral/drive (N/D).
- intermediate (1-2).
- overdrive (3-4).