Brakes Overheating - Derbi boulevard 125 4t Workshop Manual

Troubleshooting
Possible Cause
Loose nozzles
Incorrect float level
Transmission and brakes
Clutch grabbing or performing inadequately
IRREGULAR CLUTCH PERFORMANCE OR SLIPPAGE
Possible Cause
Slippage or irregular functioning
Insufficient braking
Possible Cause
Worn brake pads or shoes
Front brake disk loose or deformed
Air bubbles inside the hydraulic braking system
Fluid leakage in hydraulic braking system
Excessive backlash in the rear brake control cable Adjust the backlash with the appropriate adjuster

Brakes overheating

Possible Cause
Rubber gaskets swollen or stuck
Compensation holes on the pump clogged
Brake disc slack or distorted
TROUBL - 48
Check the maximum and minimum nozzles are
Restore the level in the tank by bending on the float
the thrusting reed of the petrol inlet rod so as to
have the float parallel to the tank level with the
Check that there is no grease on the masses.
Check that the faying surface between the clutch
masses and the clutch bell is mainly in the middle
and with equivalent specifications on the three
Check that the clutch bell is not scored or worn
INEFFICIENT OR NOISY BRAKING
Replace the brake pads or shoes and check for
Check the brake disc screws are locked; use a dial
gauge and a wheel mounted on the vehicle to
(there must be no flexible movement of the brake
BRAKES OVERHEATING
Clean carefully and blast with compressed air
Check the brake disc screws are locked; use a dial
gauge and a wheel mounted on the vehicle to
Operation
adequately fixed in their fittings
carburettor inverted.
Operation
masses.
abnormally
Never run the engine without the clutch bell
Operation
brake disk or drum wear conditions.
measure the axial shift of the disc.
Carefully bleed the hydraulic braking system,
lever).
Failing elastic fittings, plunger or brake pump
seals, replace
located on the back part of the crankcase.
Operation
Replace gaskets.
measure the axial shift of the disc.