Examination
The cylinder is replaced if a leak is detected under the dust seals.
Removal and installation
1. Remove the brake drums and shoes.
2. Clamp the brake hose and disconnect the hose. If there is no special clamp, pump out the liquid and plug the hose.
3. Loosen the union nut 1/8-1/4 turn, keeping an eye on the tube. If the nut starts to unscrew freely, then unscrew the nut completely and disconnect the tube. Loosen the bolts and remove the cylinder. If the nut of the nipple is stuck to the tube and the tube starts to turn with the nut, then unscrew the cylinder mounting bolts, unscrew the nipple for bleeding and carefully move the cylinder outward like this. so that it could be turned. While holding the nut, rotate the cylinder and remove.
4. Install the cylinder in reverse order. Install the removed parts and bleed the brake hydraulic system.
Disassembly
The procedure below is only performed if you can purchase a wheel cylinder repair kit (limited availability for spare parts). It is advisable to replace the faulty cylinder.
1. Remove the wheel cylinder.
2. Remove the covers, take out the pistons, seals and spring.
3. Wash the parts with clean brake fluid or rectified alcohol.
4. Check the condition of the piston and cylinder; if there are scratches, replace the cylinder.
5. Lubricate the cylinder walls and seals with clean brake fluid.
6. Install the spring, seals and pistons.
7. Put on new dust covers.
8. Install the cylinder on the vehicle.
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