Removal from the JH3 gearbox
Place the vehicle on a two-post lift, apply the parking brake, turn off the ignition, open the hood and disconnect the ground wire from the battery.
Remove the gearbox (see here).
Note: When replacing the bearing, you do not have to remove the gearbox completely, but only move it away from the engine to the required distance. This work is shown here.
Remove bearing 1, Figure 4-1, by disengaging the clutch by turning the fork in direction A.
Figure 4-1 - Removing the clutch release bearing from the JH3 transmission: 1 - clutch release bearing; A - direction of rotation of the fork for removing the clutch release bearing
Remove the clutch release fork 1, Figure 4-2, by pulling it towards the inside of the clutch housing.
Figure 4-2 - Removing the clutch release fork from the JH3 transmission: 1 - clutch release fork
Installation on JH3 gearbox
Make sure there are no signs of oil leakage at the output of the primary shaft; if necessary, replace the front support of the primary shaft as an assembly.
Apply MOLYKOTE BR2 grease to the walls of the guide bushing and to the clutch release fork tabs (consumption rate 2 g).
Install the clutch release fork 1, Figure 4-2, onto the gearbox.
Install bearing 1, Figure 4-1, of the clutch release on the guide sleeve, inserting the grips 1, Figure 4-3, into the fork legs.
Make sure that the clutch release bearing slides normally along the guide sleeve.
Figure 4-3 - JH3 Gearbox Clutch Release Bearing: 1 - clutch release bearing grip
Install the gearbox.
Figure 4-4 - Checking the travel of the clutch release fork of the JH3 gearbox
After installing the gearbox, check the travel of the clutch release fork. The fork travel should be within 27...28 mm, Figure 4-4 (caliper ShTs-1-125-0.1).
If necessary, adjust the clutch release fork stroke.
Removal from the JR5 gearbox
Place the vehicle on a two-post lift, apply the parking brake, turn off the ignition, open the hood and disconnect the ground wire from the battery.
The clutch release bearing on a hydraulically driven gearbox is integral with the clutch slave cylinder.
Before removing the clutch release bearing and clutch slave cylinder, it is necessary to remove the brake fluid from the reservoir using a syringe (technological syringe).
Remove the gearbox (see here).
Note: You don't have to remove the gearbox completely, just move it away from the engine to the required distance. This work is shown here.
Unscrew the two bolts 1, Figure 4-5, securing the clutch release bearing (replaceable head 8, extension, ratchet).
Remove clutch release bearing 2.
Figure 4-5 - Removing the clutch release bearing from the JR5 transmission: 1 - clutch release bearing mounting bolt; 2 - clutch release bearing; 3 - gearbox
Installation on JR5 gearbox
Replace the clutch release bearing with a new one.
In order to remove as much air as possible from the working cylinder, when installing the clutch release bearing, it is necessary to first fill it with brake fluid (brake fluid according to the current "Codifier of the main and auxiliary materials used in the maintenance and repair of LADA vehicles" K 3100.25100.00018).
Install a new clutch release bearing 2.
Install and tighten bolts 1 of the clutch release bearing to a torque of 21 N·m (2.1 kgf·m) (replacement head 10, extension, ratchet).
Caution! Do not apply grease to the primary shaft of the gearbox to avoid failure of the clutch slave cylinder.
Caution! Do not press the clutch pedal when the slave cylinder is removed.
Install the gearbox.
Remove air from the clutch hydraulic system.
(Information taken from the website LADAMAN.ru)