Workshop Manuals Factory service & repair Fiat
01 Introduction02 Engine03 Fuel system04 Ignition system05 Cooling system06 Clutch07 Gearbox and differential08 Rear suspension and wheels09 Front suspension and hubs10 Steering11 Brakes12 Electrical equipment13 Bodywork14 Technical data and wiring diagrams
Fiat 500 Classic Workshop Manual (1957-1975)11 · Brakes
11 · Brakes

Maintenance

Make
Fiat
Model
500 Classic Workshop Manual
Year
1957–1975
Section
Maintenance › Maintenance
BrakesMaintenance

Maintenance

Brake adjustment {Station Wagon)

Jack each wheel in turn after first chocking the remaining three wheels and releasing the handbrake. Depress the brake pedal so as to force the brake shoes against the drum and keeping the shoes in this position turn the adjuster nuts until they contact the shoes and then back the nuts 20 deg. This will correctly set the shoe to drum clearance which should be checked for binding by releasing the brake pedal and ensuring that the road wheel revolves freely. The operation should then be repeated on the other wheels. This adjustment will automatically set the handbrake.

Preventative maintenance

  1. Thoroughly inspect the metal hydraulic fluid lines for rusting, cracking or flattening and that they are located away from any sharp edges which could cause a failure.
Diagrammatic view of service and rear wheel parking brake system
FIG 10:1 Diagrammatic view of service and rear wheel parking brake system
Key to Fig 10:1
1Bleeder connections
2Brake fluid reservoir
3Service brake pedal
4Hand lever, mechanical parking brake on rear wheels
5Hand lever travel adjustment stretchers
6Stop lamps
7Mechanical brake operating lever, controlled from lever 4
8Shoe clearance self-adjusting device
9Wheel cylinders
10Master cylinder
11Stoplight pressure-operated switch
Left front wheel brake assembly (500 Sedan)
FIG 10:2 Left front wheel brake assembly (500 Sedan)
  1. Check that the hydraulic flexible hoses are not contaminated with oil or grease which would destroy the rubber.
  2. Ensure that all pipeline fastening clips are secure otherwise hydraulic line failure could occur due to cracking caused by excessive vibration.
  3. Carefully clean all connections and inspect for hydraulic fluid leaks. Should any leaks be detected then the connections should be tightened taking very great care not to twist the pipes during this operation.
  4. Ensure that the hydraulic fluid level in the reservoir is correctly filled up to the top of the filter using Fiat special 'Blue Label' brake fluid. Extra care must be taken to ensure that no fluid is spilled over the body paintwork, as this acts as a strong solvent.
  5. Ensure that the play between the brake pedal pushrod and the master cylinder plunger is .019 inch. This will correspond to approximately .098 inch free pedal travel.

Never use any fluid but the recommended hydraulic fluid. Do not leave it in unsealed containers as it will absorb moisture which can be dangerous. It is best to discard fluid drained from the system or after a bleeding operation. Observe absolute cleanliness when working on all parts of the hydraulic system.

Parts & tools for this job For 1957 Fiat 500 Classic

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