Inspection Window; Replacing The Seal Sel - MZ 125 SX Repair Manual

4.1.5 Inspection Window
Brakes Front
Removal
1. Position the vehicle such that the main brake cylinder sits
horizontally.
2. Open the main brake cylinder cap.
3. Suck out the brake fluid until the level is under the lower
edge of the inspection window (e.g. with
a
suitable syringe).
4.
Lift
out the clasp with a screw driver.
5. Press out the inspection window along with the seal ring.
6. Replace the seal ring and/or glass.
Installation
Install in reverse order.
The MIN mark must be parallel to the cap seal surface.
Add brake fluid, bleed (see 4.1.3 "Bleeding the Brake System").
Perform function test.
4.1.6 Replacing the Seal Set
Rubber components must be replaced by new parts in case of
damage or cracking or, in general, every 4 years.
1. Drain the main brake cylinder.
2. Remove the seal collar (1).
3. Remove the piston (4).
4. Replace the seal rings (2) and (3).
5. Clean all parts with brake cleaner.
6. Moisten new parts with brake fluid and insert them into the
main brake cylinder.
Do not use grease!
Hazard!
Accident risk!
The
seal lip
ofthe seal collar (1) mustface inward when
installed. Otherwise no braking pressure can be estab-
lished and the brake does not function.
7. Insert spring.
8. Press in the piston.
9. Slide on the seal collar.
10. Add brake fluid, bleed
(see 4.1.3 "Bleeding the Brake System").
11. Perform function test.
MZ 125 SX/SM Reoair Manual
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