KIA RIO

since 2000 of release

Repair and car operation

8.2.5. Check of pressure of transmission liquid

GENERAL INFORMATION

Check of pressure of transmission liquid is carried out to define a condition of hydraulic components and whether there are leaks.

PERFORMANCE ORDER

1. Tighten the parking brake and establish a maple emphasis under lobbies and back wheels.
2. Start up the engine before transmission warming up to temperature 60~70°C.
3. Before testing check levels of all operational liquids and, if necessary, finish them to the normal.
4. Connect to the engine a tachometer.
5. Remove a mudguard on the left side under a front bumper.
	6. Connect a manometer of OK201 190 AA0 to the union of check of pressure. For access to the union it is desirable to lift the car.

Carrying out testing

PERFORMANCE ORDER

1. Start up the engine.

2. Check frequency of rotation of a cranked shaft of the engine idling and in a selector "R" position.

Frequency of rotation of a cranked shaft of the engine idling:
For Europe and Australia: 750-850 ^mines-1
The general: 700-800 ^mines-1

3. Move the selector lever to a position "D" and on a manometer read pressure size.

Prevention

For an exception of damage of a transmission execute steps 4 and 5 during 5 pages.

4. The left foot press against the stop a brake pedal, and the right foot smoothly press an accelerator pedal.

5. When frequency of rotation of a cranked shaft of the engine does not increase any more, on a manometer read size of pressure and release an accelerator pedal.

Prevention

Operation of the engine within, at least, one minute on frequency of rotation of idling cools transmission liquid and prevents deterioration of its properties.

Before each subsequent testing, during sufficient time cool a transmission.

6. At the working engine move the selector lever to a position N and leave the engine to work at frequency of rotation of idling within, at least, one minute.

7. Similarly measure pressure in all positions of the lever of the selector:

Pressure of transmission liquid, kPa

Positions

On frequency of idling

In the stall test mode

D, 2,1

392,4–882,9

784,8–1275,3

R

490,5–981,0

1373,4–1863,9

8. Remove a manometer and close the union a stopper.

Inhaling moment: 5,0–9,8 N • m

Assessment of results of check of pressure of transmission liquid

Pressure of transmission liquid	Place of possible malfunction
Low pressure in each position of the lever of the selector	The oil pump is worn-out Leaks in the oil pump, the regulating valve and / or a transmission case The valve of a regulator of pressure is blocked
Low pressure in only positions D and 2	Leakages of transmission liquid in a hydraulic drive of coupling of a forward course
Low pressure in only a position R	Leakages of transmission liquid in a hydraulic drive of coupling of forward bottom transfers and a backing or backing coupling
Pressure is higher, than according to the specification	The valve of a regulator of pressure or the linear electromagnetic valve is blocked