Hydraulic Unit (Hu) Description - Suzuki GSF650A Service Manual

Hydraulic Unit (HU) Description

The hydraulic unit operates the solenoid valves based upon the signal which is output from the ABS control unit. The
brake fluid pressure is then adjusted accordingly. The hydraulic unit controls the front and rear brake systems
individually by operating separate components for the front and the rear, except for the pump drive motor, which is
shared by both systems.
Solenoid
valve IN
Rear brake
caliper
Rear brake pedal/
master cylinder
Rear brake
light switch
One-way
valve
Solenoid
valve OUT
Reservoir
ABS control unit
Rear wheel
speed sensor
Rear system
Front brake lever/
master cylinder
Front brake
light switch
HU
One-way
valve
Damper
M
Motor
Reservoir
ABS indicator light
ABS:
Solenoid
valve IN
Solenoid
valve OUT
Front brake
caliper
Front wheel
speed sensor
Front system
4E-4
B817H24501003
I718H1450010-01