Toyota Land Cruiser
+ 1. Maintenance instruction
+ 2. Maintenance
+ 3. Engines
+ 4. Cooling systems, heating
+ 5. Fuel and exhaust systems
+ 6. System of decrease in toxicity
- 7. Transmission
+ 7.1. Mechanical transmission
+ 7.2. Automatic transmission
+ 7.3. Transfer case
- 7.4. Coupling, driveshafts, half shafts and leading bridges
7.4.1. Technical characteristics
- 7.4.2. Coupling
7.4.2.1. Coupling details
7.4.2.2. Release bearing
7.4.2.3. The directing bearing
7.4.2.4. Main cylinder of coupling
7.4.2.5. Working cylinder of coupling
7.4.2.6. Coupling hydraulic actuator
7.4.2.7. Coupling pedal
+ 7.4.3. Cardan shaft, reducer and axes
7.4.4. Forward half shaft and epiploon
+ 7.4.5. Back (forward) bridge
+ 8. Brake system
+ 9. Suspension brackets and steering
+ 10. Body
+ 11. Electric equipment
+ 12. Electrical circuitries
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Coupling details
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1. Flywheel
2. The directing bearing
3. Fork
4. Bracket
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5. Release bearing
6. Coupling casing
7. Frictional disk |
Coupling is dry, one-disk diaphragm type with the hydraulic drive.
The contour of a hydraulic actuator switched on consistently main and working cylinders via which transfer of effort from a pedal to a fork and on the release bearing of switching off of coupling is provided.
Adjustment of coupling is carried out automatically.
Indications of wear of coupling are pro-slipping and the characteristic howling sound at transfer inclusion. In this case considerable wear of a flywheel and press disk is possible.
Wear of a frictional disk depends on skills of driving, wear is accelerated by frequent application of pro-slipping, or driving with breakthroughs owing to "throwing" of a pedal. Approximately frictional disk should be changed through 64000 km.
It is recommended to execute the following preliminary checks which allow to define a condition of coupling.
| PERFORMANCE ORDER |
| 1. Check liquid level, if necessary restore (if the tank is empty, then add liquid and pump over a hydraulic actuator). |
| 2. For check of pro-slipping of coupling press a pedal idling of the engine and several seconds later turn on the reverse gear. The gnash will indicate the increased wear of press or frictional disks. |
| 3. Check completeness of switching off of coupling. |
| 4. For this purpose on the working engine press a coupling pedal so that the pedal did not reach a floor on 13 mm. |
| 5. Several times switch from the 1st transfer to back. The complicated switching indicates wear of details. |
| 6. Check the course of a rod of the working cylinder at completely pressed pedal. If the course is small, then check liquid level. |
| 7. Check a condition of the directing bearing, be convinced that the clutch release fork lever has no side play on an axis. |
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