PIAGGIO NRG POWER PUREJET, Руководство по ремонту, Страница: 42 / 248

Possible Cause Operation
If it is not possible to remove any problems by sim-
ply adjusting the transmissions, check the brake
pads and front brake disc, the brake shoes and the
rear drum. If you encounter excessive wear or
scoring, make the necessary replacements.
Air bubbles inside the hydraulic braking system Carefully bleed the hydraulic braking system,
(there must be no flexible movement of the brake
lever).
Fluid leakage in hydraulic braking system Elastic fittings, piston seals or brake pump break-
down, replace
The brake fluid has lost its properties Replace the front brake fluid and top up to the cor-
rect level in the pump
Brake noise Check the wear of the brake pads and/or shoes
Brakes overheating
BRAKE OVERHEATING
Possible Cause Operation
Defective piston sliding Check calliper and replace any damaged part.
Deformed brake disc Use a comparator to check the disc planarity with
the wheel correctly mounted
Electrical system
Battery
BATTERY
Possible Cause Operation
Battery The battery is the electrical device in the system
that requires the most frequent inspections and
thorough maintenance. If the vehicle is not used
for some time (1 month or more) the battery needs
to be recharged periodically. The battery runs
down completely in the course of 5 ÷ 6 months. If
the battery is fitted on a motorcycle, be careful not
to invert the connections, keeping in mind that the
black ground wire is connected to the negative ter-
minal while the red wire is connected to the termi-
nal . Follow the instructions in the ELEC-
TRICAL SYSTEM chapter for the recharging of the
batteries.
Steering and suspensions
Troubleshooting
NRG Power Purejet
TROUBL - 4