![VESPA 664787 Service Station Manual Download Page 123](http://html.mh-extra.com/html/vespa/664787/664787_service-station-manual_1008802123.webp)
when it is fully empty, the level of fluid in the res-
ervoir is below the MIN level.
N.B.
THE LEVEL TENDS TO DROP AS THE BRAKE PADS GET
WORN, A MINIMUM LEVEL SHOULD NOT BE REACHED.
IF THE LEVEL IS TOO LOW, CHECK AND FIX THE SYSTEM
SEALS, IF REQUIRED. TOP UP THE PUMP TANK, IF RE-
QUIRED, CONSIDERING THAT THE "MAX." LEVEL MUST
ONLY BE OBTAINED WITH NEW PADS.
- Under standard climatic conditions, replace fluid as indicated in the scheduled maintenance table.
Front brake pump
Removal
- Remove the front and rear handlebar covers
- Remove the two screws fixing the brake pump to
the handlebar indicated in the photograph
- Remove the oil pipe joint from the pump
- Remove the connector to the stop light switch
Overhaul
Proceed as follows:
1) Remove the brake lever by loosening the retaining screw; open the cover (2) and take out the dia-
phragm (3);
2) remove the cap (4) and take out the internal parts in order;
3) Check that:
- The body of the pump shows no signs of internal damage or corrosion;
- The plunger shows no sign of damage or abnormal wear;
- The plunger return spring is in good condition.
Vespa S 50 2T
Braking system
BRAK SYS - 123
Summary of Contents for 664787
Page 1: ...SERVICE STATION MANUAL 664787 664795 IT EN FR DE ES PT NL EL Vespa S 50 2T ...
Page 4: ......
Page 6: ...INDEX OF TOPICS CHARACTERISTICS CHAR ...
Page 16: ...INDEX OF TOPICS TOOLING TOOL ...
Page 27: ...INDEX OF TOPICS MAINTENANCE MAIN ...
Page 38: ...INDEX OF TOPICS TROUBLESHOOTING TROUBL ...
Page 44: ...INDEX OF TOPICS ELECTRICAL SYSTEM ELE SYS ...
Page 48: ...Conceptual diagrams Ignition Electrical system Vespa S 50 2T ELE SYS 48 ...
Page 64: ...INDEX OF TOPICS ENGINE FROM VEHICLE ENG VE ...
Page 66: ...INDEX OF TOPICS ENGINE ENG ...
Page 97: ...INDEX OF TOPICS SUSPENSIONS SUSP ...
Page 117: ...INDEX OF TOPICS BRAKING SYSTEM BRAK SYS ...
Page 126: ...INDEX OF TOPICS CHASSIS CHAS ...
Page 136: ...INDEX OF TOPICS PRE DELIVERY PRE DE ...
Page 140: ...INDEX OF TOPICS TIME TIME ...
Page 169: ...Seat SADDLE Code Action Duration 1 004003 Saddle Replacement Vespa S 50 2T Time TIME 169 ...