Preparation
1. Insert the radial oil seal (39) into the B1 brake piston (37).
2. Insert the pin with the gaskets and sealing ring into the B1 brake piston. The sealing edge must be located outward.
3. Secure the puller (026) and screw it onto the gearbox, install the measuring device (031).
4. Insert brake piston B1 (37) with one pressure spring.
5. Screw the device (026) onto the spindle. Make sure that the brake piston pin B1 (37), which is installed on the brake band, and the radial oil seal (39) are not damaged.
6. Insert the retaining ring (41), loosen and remove the device (026).
Measuring and adjusting the gap
1. Tighten the measuring device (031) by hand until resistance is reached.
2. With the key on the bolt, screw the measuring device (031) behind the bolt, counting the number of turns until a torque of 1 N is determined. The thread of the measuring device has a pitch of 1 mm, so one turn is equal to a gap of 1 mm.
3. Loosen the device (026) and remove the brake piston if necessary.
4. Adjust the clearance by inserting or removing the shims (136) on the pin (38). The thickness of the shims is 0.5, 1.0 and 1.5 mm.
5. Install the brake piston cover (40) and the second pressure spring (35) into place in the measuring device, insert the retaining ring and unscrew the device (026).
