Description and Operation
| • |
The oil pump is powered by the
engine. ATF passes through the oil filter and gets distributed along the
oil channels. |
| • |
The oil becomes highly pressurized
as it exits the oil pump and passes through the line pressure valve before
being fed to the clutch & brake control valve, clutch, and brakes. |
| • |
TCM controls the hydraulic pressure
using solenoid valves and controls clutch and brake operations. |
Flow of the hydraulic system
Components and Components Location
1. Automatic transaxle
2. Oil filter
3. Mechanical oil pump
|
4. Converter housing
5. Torque converter
|
Oil Pump Description and Operation
| • |
The oil pump is built-in as a
single unit with the 26 Brake chamber. |
| • |
Rotation of the pump builds the
hydraulic pressure needed for the lubrication of the various parts of the
transaxle and operation of the clutch and brakes. |
| • |
The oil also circulates through
the torque converter and the cooler. |
Operation flow of the mechanical oil pump
Oil Pump Components and Components Location
1. Housing - Oil pump
2. Cover - Oil pump
3. Gear - Oil pump drive
4. Gear - Oil pump driven
5. Shaft - Reaction
6. Oil - Seal
|
7. Sleeve
8. Bearing - Housing
9. Cap - Sealing
10. Needle roller bearing
11. Bolt
12. Snap ring - Housing
|
Fluid Components and Components Location
1. Automatic transaxle
2. Drain plug gasket
3. Drain plug
4. ATF level check plug
|
5. ATF level check plug gasket
6. ATF injection plug O-Ring
7. ATF injection plug (Eyebolt)
|
Fluid Repair procedures
| Service Adjustment Procedure |
| • |
A check of ATF level
is not normally required during scheduled services. If an ATF leak
is found, perform the ATF level check procedure after repairs are
completed. |
|
| • |
When checking the oil
level, be careful not to enter dust, foreign matters, etc. from
fill hole. |
|
| 1. |
Remove the eyebolt (A).
|
| 2. |
Add ATF SP-IV 700cc to the ATF
injection hole (A).
|
| 3. |
Start the engine.
(Don’t step on brake and accelerator simultaneously.)
|
| 4. |
Confirm that the temperature
of the automatic transaxle oil temperature sensor is 50 ~ 60°C (122 ~ 140°F)
with the GDS. |
| 5. |
Shift the select lever slowly
from “P” to “D”, then “D” to “P” and repeat one more at idle.
| •
|
Pause at each
gear position more than 2 seconds. |
|
|
| 6. |
Lift the vehicle, then remove
the under cover.
(Refer to Engine Mechanical System - "Engine room under cover")
|
| 7. |
Remove the ATF level check plug
(A) from the valve body cover.
| •
|
At this time,
the vehicle must be at a level state. |
|
|
| 8. |
If the ATF flows out of the overflow
plug in thin steady stream, the ATF level is correct. Then finish the
procedure and tighten the ATF level check plug.
Oil level check (excess or shortage) method
| •
|
Excess: Drain
quantity exceed 900cc for tow minutes.{50 ~ 60°C (122 ~
140°F)} |
| •
|
Shortage: No
ATF flows out of the overflow plug. |
|
| •
|
Replace the gasket
before reinstalling the ATF level check plug. |
| •
|
Turn the oil
level check plug clockwise until it is set. |
| •
|
If there is no
damage at the automatic transaxle and the ATF cooler, the
ATF cooler hose, transaxle case, valve body tightening state
are normal, ATF must drip out after performing above 1 to
7 procedures. After performing above 1 to 7 procedures,
if the oil doesn’t drip out, inspect the automatic transaxle
assembly. |
|
|
| 9. |
Install the under cover. (Refer
to Engine Mechanical System - "Engine room under cover")
|
| 10. |
Put down the vehicle with the
lift and then tighten the eyebolt.
| •
|
Replace the gasket
(A) before reinstalling the eyebolt. |
|
|
ATF of 6 speed automatic transaxle doesn’t be replaced. But, if the vehicle
is severe use or business use, replace ATF every 60,000 miles for severe
usage.
Severe usage is defined as
| • |
Driving in rough road
(Bumpy, Gravel, Snowy, Unpaved road, etc). |
| • |
Driving in mountain road,
ascent/descent. |
| • |
Repetition of short distance
driving. |
| • |
More than 50% operation
in heavy city traffic during hot weather above 32°C(89.6°F) .
|
| • |
Police, Taxi, Commercial
type operation or trailer towing, etc.
|
|
| 1. |
Lift the vehicle, then remove
the under cover. (Refer to Engine Mechanical System - "Engine room under
cover")
|
| 2. |
Remove the drain plug (A) and
reinstall the drain plug after draining ATF totally.
| •
|
Replace the gasket
before reinstalling the drain plug. |
|
Drain plug tightening torque:
33.3 ~ 43.1 N.m (3.4 ~ 4.4 kgf.m, 24.6 ~ 31.8 lb-ft)
|
|
| 3. |
Put down the vehicle with the
lift and then remove the eyebolt (A). |
| 4. |
Fill the ATF about 5 liters to
the injection hole.
|
| 5. |
Check the ATF level.
(Refer to Hydraulic System - "Fluid")
|
| 6. |
Then finish check the ATF level
procedure and install the under cover. (Refer to Engine Mechanical System
- "Engine room under cover")
|
| 7. |
Put down the vehicle with the
lift and then tighten the eyebolt.
| •
|
Replace the gasket
(A) before reinstalling the eyebolt.
|
|
|
Automatic Transaxle Components and Components Location
Components Location(1)
1. Automatic transaxle assembly
2. ATF cooler tube
3. Ground line
4. Shift cable mou ...
Components and Components Location
Components Location
1. Automatic transaxle
2. Input/Output speed sensor
3. Valve body assembly
4. Solenoid valve connector ...
Hyundai Elantra AD: Hydraulic System
