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5. Front brake master cylinder
6. Rear brake pump
7. Front brake control lever
8. Rear brake pedal
9. Front brake circuit inlet solenoid valve (normally open)
10.Rear brake circuit inlet solenoid valve (normally open)
11.Front brake circuit outlet solenoid valve (normally closed)
12.Rear brake circuit outlet solenoid valve (normally closed)
13.Rear/front brake circuit low pressure accumulator
14.Dual hydraulic circuit pump (ABS)
15.Hydraulic circuit motor
16.DC electric motor
Inlets and outlets:
1. Supply to the rear brake calliper.
2. Intake from the rear brake pump.
3. Inlet from front brake master cylinder.
4. Outlet to front brake calliper.
ABS OPERATION
General specifications:
The front circuit is the same as the rear one.
•
The ABS inlet valve (9 - 10) is normally open and it is closed only when the system intervenes
to avoid wheel locking.
•
The exhaust valve (11 - 12) is normally closed and it is opened only when the system in-
tervenes to avoid wheel locking.
•
With the system in stand-by mode, the ABS processor controls the wheel speed instant by
instant to assess any slippage of the wheels.
•
When in standby, the system does not intervene at all when the rider brakes; the braking
system is the same as the one without ABS.
ABS Cycle phases (the following operations refer to the front circuit but they are also valid for
the rear):
A - Brake activation: the rider starts braking
as he would usually do.
B - Pressure reduction:
coincides with the recognition of the dangerous situation (wheel slippage
exceeds the threshold): the system closes the inlet valve (9-10) and opens the outlet valve (11-12)
temporarily.
Braking system
TUAREG 660
BRAK SYS - 226
Summary of Contents for TUAREG 660
Page 1: ...SERVICE STATION MANUAL 2Q000524 TUAREG 660 ...
Page 4: ......
Page 6: ...INDEX OF TOPICS PRE DELIVERY PRE DE ...
Page 18: ...INDEX OF TOPICS CHARACTERISTICS CHAR ...
Page 29: ...INDEX OF TOPICS SPECIAL TOOLS S TOOLS ...
Page 35: ...INDEX OF TOPICS MAINTENANCE MAIN ...
Page 57: ...INDEX OF TOPICS ELECTRICAL SYSTEM ELE SYS ...
Page 122: ...INDEX OF TOPICS ENGINE FROM VEHICLE ENG VE ...
Page 123: ...TUAREG 660 Engine from vehicle ENG VE 123 ...
Page 124: ...INDEX OF TOPICS ENGINE ENG ...
Page 125: ...TUAREG 660 Engine ENG 125 ...
Page 126: ...INDEX OF TOPICS POWER SUPPLY P SUPP ...
Page 128: ... Remove the fuel pump complete with seal Power supply TUAREG 660 P SUPP 128 ...
Page 129: ...INDEX OF TOPICS SUSPENSIONS SUSP ...
Page 164: ...INDEX OF TOPICS CHASSIS CHAS ...
Page 221: ...INDEX OF TOPICS BRAKING SYSTEM BRAK SYS ...
Page 264: ...INDEX OF TOPICS COOLING SYSTEM COOL SYS ...
Page 274: ...INDEX OF TOPICS BODYWORK BODYW ...