Vespa GTS Super 300 ie - Service manual > Fill
Rear - combined
- Remove the rubber cap from the bleed screw.
- Insert a rubber pipe in the bleed screw to permit the brake fluid to be recovered.
- With the left-had brake lever, load the system and bring it up to the required pressure.
- Keeping the left-hand brake lever pulled, loosen the bleed screw to permit the air in the system to escape. Then tighten the bleed screw
- Repeat the operation until only brake fluid comes out of the rubber pipe.
- Remove the fluid recovery pipe and refit the rubber cap over the bleed screw.
- Top up the brake fluid to the right level in the reservoir.
If necessary, bleeding can be done using a special vacuum pump
N.B.
DURING THE BLEEDING OPERATIONS, MAKE SURE THE BRAKE FLUID DOES NOT COME INTO CONTACT WITH THE BODYWORK SO AS NOT TO DAMAGE IT. FURTHERMORE, DURING THE BLEEDING OPERATIONS REGARDING THE BRAKE CALLIPERS, MAKE SURE THE BRAKE FLUID DOES NOT COME INTO CONTACT WITH THE DISC BRAKES AND WITH THE BRAKE PADS. FAILURE TO OBSERVE THIS PRECAUTION WILL ENDANGER THE PROPER WORKING AND EFFICIENCY OF THE BRAKING SYSTEM
Specific tooling 020329Y Mity-Vac vacuum-operated pump
Locking torques (N*m)
System bleed calliper fitting: 12 to 16 Nm
Brake fluid level check
- Position the vehicle on a flat surface and on the centre stand
- Remove the brake pump cover as indicated in the photo
- Use the appropriate spyglass on the pump to check the level of the brake fluid, as shown in the photograph
- If the level is below the minimum, fill up by acting on the two screws shown in the figure.
- Remove the gasket and fill with recommended brake fluid until the spyglass is completely covered.
CAUTION
AVOID CONTACT OF THE BRAKE FLUID WITH YOUR EYES, SKIN, AND CLOTHING. IN CASE OF ACCIDENTAL CONTACT, WASH WITH WATER.
CAUTION
THE BRAKING CIRCUIT FLUID IS HIGHLY CORROSIVE.
THEREFORE, WHEN TOPPING UP, AVOID LETTING IT COME INTO CONTACT WITH THE PAINTED PARTS OF THE VEHICLE. THE BRAKING CIRCUIT FLUID IS HYGROSCOPIC, THAT IS, IT ABSORBS HUMIDITY FROM THE SURROUNDING AIR. IF MOISTURE CONTAINED IN THE BRAKE FLUID EXCEEDS A CERTAIN VALUE, THIS WILL RESULT IN INEFFICIENT BRAKING.
CAUTION
BRAKE FLUID IS HYGROSCOPIC; THAT IS, IT ABSORBS MOISTURE FROM THE SURROUNDING AIR. IF THE LEVEL OF HUMIDITY IN THE BRAKE FLUID EXCEEDS A GIVEN VALUE, BRAKING EFFICIENCY WILL BE REDUCED.
Never use brake liquid in open or partially used containers.
Under standard climatic conditions, replace coolant as indicated in the scheduled maintenance table.
For refitting purposes carry out the removal operations but in reverse order and respect the tightening torques of the tank cover screws.
Locking torques (N*m)
Brake pump reservoir screws 1.5 รท 2
See also:
Vespa GTS Super 300 ie - Service manual > Rear/Front brake pads
Front brake pads Removal Remove the front wheel Pre-loosen the two fixing pins of the brake pads Remove the brake calliper Remove permanently the two pad fixing screws Check that there are no flaws or warping. If there is, replace it. Check the thickness of the friction material is more than 1.5 mm. If it is not, replace it The replacement must be made with greater residual thickness if the pad has not worn evenly. A 0.5 mm thickness difference in the residual friction material is permitted
Vespa GTS Super 300 ie - Service manual > Front brake pump
Removal Remove the rear handlebar cover. 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
