Vespa GTS Super 300 ie - Service manual > Rear/Front brake disc
Rear brake disc
Removal
- Remove the rear brake calliper.
- Remove the brake disc and the hub from the wheel axle
- To remove the brake disc from the hub, hold the unit firmly with a vice and operate on the 5 fixing screws indicated in the photograph
Refitting
- To reassemble the brake disc on the hub, carry out the removal operations in the reverse order arranging the brake disc on the hub on the side opposite the wheel keying
- Follow the direction of rotation shown by the arrow and tighten to the prescribed torque.
- Fit the hub unit
- disc in the wheel axle
Locking torques (N*m)
Disk to the hub 11 ÷ 13
Disc Inspection
- Remove the rear brake calliper.
- Check the disc thickness with a micrometer
Characteristic
Standard thickness:
3.5 mm
- Repeat the measurement at no fewer than six points on the disc.
- Check the regular nature of the rotation of the brake disc assembly using the appropriate tool fixed onto the brake calliper as shown in the photo.
- In order to be able to anchor the appropriate tool properly use a metal plate with M8 threaded hole and fix it to one of the two rear brake calliper attachment points.
- Suitably fix the flange to the wheel axle with the original nut and spacer and a Æ 17 mm bearing.
N.B.
SO AS NOT TO GET A DISTORTED READING, CAUSE THE DRIVEN PULLEY SHAFT TO TURN IN ORDER TO ROTATE THE DISC.
Specific tooling
020335Y Magnetic mounting for dial gauge
Characteristic
Max. deviation allowed:
0.1 mm
- If you detect incorrect values, replace the disc. If the anomaly persists, replace the hub.
Front brake disc
Removal
- Remove the front wheel
- Remove the front brake calliper
- Remove the hub and the disc operating on the wheel axle nut
- Hold the hub and the disc firmly and remove the brake disc undoing the six screws indicated in the photograph
Refitting
- Carry out the operations in the reverse order from the removal being careful to respect the direction of disc rotation shown by the arrow printed on it
- Tighten the six screws to the specified torque.
Locking torques (N*m)
Brake disc screws 8 ÷ 10
Disc Inspection
- Remove the front wheel
- Use a micrometer to check the disc thickness as shown in the photograph
- Repeat the measurement in at least 6 points on the disk
- Remove the front brake calliper
- In order to secure the appropriate tool adequately use a metal plate with M8 threaded hole and fix it to one of the two front brake calliper attachment points
- Place the dial gauge on the disk outer edge
- Make the wheel hub turn and check the disk deviation
Specific tooling
020335Y Magnetic mounting for dial gauge
Characteristic
Standard thickness:
3.5 mm
Max. deviation allowed:
0.1 mm
See also:
Vespa GTS Super 300 ie - Service manual > Rear/Front brake calliper
Rear brake calliper Removal Remove the rear wheel. Remove the pad retention pin snap ring. Using a pin partially remove the brake pad retention pin. Remove the screws fixing the brake calliper to the crankcase then remove the brake calliper complete with pipe. Complete the extraction of the pad retention pin, the spring and the pads.
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
