Contents: Disassembly ↡ Assembly ↡
6b - Outer brake support B1; 6c - Piston; 6d - Piston return disc spring; 6f - Disc spring of the disc block; 6g - Gear Block; 6e, 6h - Retaining rings; 073 - Puller; A - Brake oil channel B1
Section of the Brake B1
6b - Outer brake support B1; 6c - Piston; 6f - Disc spring; 6h - Retaining ring; 69 - Friction discs; 70a - Outer disc thickness 1.8 mm; 70b - Outer disc thickness 3.5 mm/new disc 2.8 mm; 70c - Outer disc thickness 4.0 mm; "L" - Gap
Disassembly
1. Remove retaining ring 6h.
2. Remove the disc block 6g and disc spring 6f from the outer support.
3. Place puller 073 on disc spring 6d and compress it until the groove for the retaining ring is released.
4. Remove retaining ring 6e.
5. Remove piston 6c from the outer support, carefully feeding air into hole A.
Assembly
1. Install piston 6c on the outer support.
2. Install the 6d disc spring
3. Place puller 073 on disc spring 6d and compress it until retaining ring 6e is seated in the groove.
4. Insert retaining ring 6e.
5. Insert the disc spring 6f and disc block 6g onto the outer support and measure the clearance L. Insert the brake discs B1 together in the order shown in the illustration and install them one by one.
6. Install press 078 on outer disk 70c.
7. Compress the disc block until it stops (until the marker ring is visible) (small arrow).
8. Measure the clearance "L" between the retaining ring 6h and the outer disc 70c at three points. The clearance values in the B1 multi-disc brake are given in the table.
9. Adjust the clearance with the 6h locking ring if necessary.
Retaining ring thickness: 2.6, 2.9, 3.2, 3.5, 3.8 and 4.1 mm.
10. Install retaining ring 6h.