VESPA GTS Super 125 i.e. Service Station Manual page 223

Vespa GTS Super 125 i.e.
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 pump body shows no signs of internal damage or corrosion;
- The plunger shows no sign of damage or abnormal wear;
- The piston return spring is in good condition.
CAUTION
ALL THE SEALS AND GASKETS MUST BE REPLACED EVERY TIME THE PUMP IS SERVICED.
1. Reservoir cap screw
2. Reservoir cap.
3. Diaphragm.
4. Bellows.
5. Sealing ring
6. Piston.
7. Gasket.
8. Spring.
9. Tank
Braking system
BRAK SYS - 223