General Maintenance
6.10
General Maintenance
Brakes
This section describes how to maintain the brake system
of your Zero S/SR/DS/DSR motorcycle. It covers the ABS
(Anti-lock Brake System), brake pad examples (specific
brake pads for front and rear are shown), and maintaining
brake fluid levels and types for front and rear systems.
Bleeding the Brake System
Your motorcycle is equipped with ABS. You can only bleed
the brake system if fluid still remains in the HCU (Hydraulic
Control Unit).
Bleeding a dry HCU requires an evacuation and fluid fill
machine.
Brake Fluid Level Inspection
CAUTION: Do not spill brake fluid on painted surfaces; the
finish could be damaged. Spilling brake fluid on the body
panels will cause them to crack.
Always place a shop towel under the master cylinder
reservoir prior to removing cover/cap.
Low fluid levels may indicate worn brake pads or a leak in
the hydraulic system. Inspect the brake pads for wear
and/or the hydraulic system for leaks. Use only new DOT 4
brake fluid from a sealed container.
Front Brake Fluid Reservoir
Inspect the level of the front
brake fluid, visible through the
reservoir (C). If the fluid level
is visibly below the MIN level
mark (B), brake fluid must be
added. Clean any dirt or
debris from the cover (A)
before opening the reservoir.
Note: The motorcycle should
be in an upright position prior
to checking fluid level.
Clean off any brake fluid spills immediately.
1. Remove the two screws securing the cover onto the
reservoir.
2. Add new DOT 4 brake fluid.
3. Inspect the cover seal, ensuring that it is free of any
wear or damage and that it is positioned correctly.
4. Install the reservoir cover screws. Torque - 0.7 ft lb
(0.9 Nm).
Zero Owner's Manual (S and DS).book Page 10 Wednesday, February 28, 2018 11:21 AM
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