1989-Montero · auto tranny · страница 30 из 109 · Открыть оригинал PDF ↗
7. Shift to D and measure governor pressure at each output
shaft rpm.
Standard value:
| Output shaft speed (rpm) | Vehicle speed km/h (mph) | Governor pressure kPa (psi) |
|---|---|---|
| 1,000 | 28(17) | 133-163(19.4-23.6) |
| 2,000 | 56 (35) | 251-281 (36.4-40.6) |
| 3,200 | 90 (56) | 400-430 (58-62.2) |
JUDGEMENT BY GOVERNOR PRESSURE
| Governor pressure,is not within | l Line pressure malfunction |
|---|---|
| the standard value | l Oil leak in governor circuit l Governor malfunction |
LINE PRESSURE TEST
1. Place the vehicle on a chassis dynamometer.
2. Remove the plug from the line pressure takeoff
port.
3. Install special tool as shown in the figure and
place the meter inside vehicle.
4. Apply the parking brake.
5. Start the engine.
6. Place the selector lever in the “D” range.
7. Depress the brake pedal firmly by the left foot
and operates the accelerator pedal by the right
foot to measure the line pressure at each engine
rpm. If the measured pressure is not nominal,
check adjustment of the throttle cable and read-
just if necessary before conducting the test
again.
8. Place the selector lever in the “R” range and test
as above.
Standard value:
| Line pressure | kPa (psi) |
|---|---|
| “D” range | “R” range |
| 51 O-590 (74-85) | 770-890 (112-130) |
| 1080-1280(156-185) | 1570-l 960 (227-285) |

JODGEMENT BY LINE PRESSURE
| Hydraulic pressure higher than nominal in all ranges | (1)Regulatorvalve faulty (2)Throttle valve faulty (3)Throttle control cable incorrectly adjusted |
|---|---|
| Hydraulic pressure lower than nominal in all ranges | (1)Oil pump faulty (2)Regulator valve faulty (3)Throttle valve faulty (4)Throttle control cable incorrectly adjusted (5)0.D. clutch faulty |
| Hydraulic pressure lower than nominal in “D” range | (1)Largefluid leaks in “D” range hydraulic circuit (2)Forvvard clutch faulty (3)0.D. clutch faulty |
| Hydraulic pressure lower than nominal in “R” range | (1)Largefluid leaks in “R” range hydraulic circuit (2)Brake No. 3 faulty (3)Direct clutch faulty (4)0.D. clutch faulty |




