Contents: Disassembly ↡ Assembly ↡
Disassembly
Design of the B1 multi-disc brake
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
1. Remove the retaining ring (6h).
2. Remove the disc block (6g) and disc spring (6f) from the outer support.
3. Place the puller (073) on the disc spring (6d) and compress it until the groove for the snap ring is released.
4. Remove the retaining ring (6e).
5. Remove the piston (6c) from the outer support, carefully feeding air into the hole (A).
Assembly
1. Install the piston (6c) on the outer support.
2. Install the disc spring (6d).
3. Place the puller (073) on the disc spring (6d) and compress it until the retaining ring 6e is positioned in the groove.
4. Insert the retaining ring (6e).
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
1. Insert the disc spring (6f) and disc block (96g) onto the outer support and measure the clearance B1. Insert the brake discs B1 together in the order shown in the illustration and install them one by one.
2. Install the press (078) on the outer disk (70c).
3. Compress the disc block until it stops (until the marker ring appears - a small arrow).
4. Measure the clearance "L" between the retaining ring (6h) and the outer disc (70c) at three points. The clearance values of the B1 multi-disc brake are shown in the table below.
If necessary, adjust the clearance by selecting a retaining ring (6h) of the required thickness. Retaining rings are available in thicknesses of 2.6, 2.9, 3.2, 3.5, 3.8 and 4.1 mm.
Install the selected ring.
B1 Multi-Disc Brake Clearance Size
| Disk | Gap size, mm | |
4 | 1.90 | 2.30 |
| 5 | 2.00 | 2.40 |