Functional check of vacuum brake system
With the engine stopped, press the brake pedal a few times in order to annul the vacuum in the servo brake. Press the pedal once
again and keep it pressed, in the brake position, by putting a certain pressure on it. Start the engine and check the pedal stroke:
-
if the stroke of the pedal increases, this implies that the servo brake and pipes are satisfactory;
-
if the pedal remains still, this implies that the outside has penetrated into the vacuum plant that is not perfectly sealed, or the
servo brake is faulty.
54
HYDRO-PNEUMATIC SYSTEM - BRAKES
D
AILY
E
URO
4
Base - March 2006
Print 603.93.651
CHECKS
Device
Designation
Checks
Pressure Reducer
Connect a vacuum meter to the intake line.
At full operation the pressure reduction must reach the value
of 0.80
÷
0.85 bar. If this value is not obtained, check if there
are any leaks in the pressure piping and servo brake
components.
Check that the distance between the top of the rotor and
cover (with unit fitted) is comprised in the range 0.07
÷
0.14mm.
Vacuum servo brake
Check the functionality and that there are no leaks. With the
vacuum meter fitted on the piping between the pressure
reducer and servo brake with engine at full speed, check that
the pressure reduction values are in the range 0.80
÷
0.85 bar
with the pedal both released and pressed fully down for a
period of 1 minute of rotation of the engine.
Brake liquid compensation tank
Check the level of the brake liquid and eventually top up with
Tutela DOT SPECIAL to the specified level. Change the brake
liquid once per year.
Load proportioning valve
Check that the values measured with special manometers, via
the test points, correspond to those indicated on the
self-adhesive plate applied to the inside of the vehicle.
Disk brake caliper
Check the condition of the brake linings; check for scratches
on the discs and the efficiency of the pistons.
Pipes and fittings
Ensure that metal pipes are in perfect condition, with no dents
or cracks. Also make sure that they are not near sharp edges
of the body work or chassis that could damage them.
Check that the rubber and cloth flexible hoses are not in
contact with oil or mineral grease, or rubber solvents. Press
hard on the brake pedal and check that the pipes are not
blown, and check that there are no leaks.
Check that all brackets fastening the pipes are securely fixed
- loose fastenings cause vibrations that could give rise to
breakage.
Check that there are no leaks from fittings, otherwise tighten
them fully, taking care when tightening not to cause irregular
pipe torsion.
In all the above cases the parts are to be replaced if there is a
minimum of doubt as to their efficiency.
Apart from their condition, it is recommended to replace hoses
after considerable mileage, or after a period of long vehicle use.
This will avoid sudden breakage due to age and fatigue.
Summary of Contents for daily euro 4
Page 1: ...DAILY EURO 4 REPAIR MANUAL MECHANICAL ELECTRIC ELECTRONIC ...
Page 12: ...Base March 2006 Print 603 93 651 ...
Page 14: ...Base March 2006 Print 603 93 651 ...
Page 16: ...2 GENERAL DAILY EURO 4 Base March 2006 Print 603 93 651 Print 603 43 671 ...
Page 30: ...2 F1A ENGINE DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 58: ...108321 Figure 30 30 F1A ENGINE DAILY EURO 4 Base March 2006 Print 603 93 651 ENGINE VIEWS ...
Page 81: ...F1A ENGINE 53 DAILY EURO 4 Print 603 93 651 Base March 2006 ...
Page 82: ...54 F1A ENGINE DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 83: ...F1A ENGINE 55 DAILY EURO 4 Print 603 93 651 Base March 2006 ...
Page 84: ...56 F1A ENGINE DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 85: ...F1A ENGINE 57 DAILY EURO 4 Print 603 93 651 Base March 2006 ...
Page 86: ...58 F1A ENGINE DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 87: ...F1A ENGINE 59 DAILY EURO 4 Print 603 93 651 Base March 2006 ...
Page 88: ...60 F1A ENGINE DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 89: ...F1A ENGINE 61 DAILY EURO 4 Print 603 93 651 Base March 2006 ...
Page 90: ...62 F1A ENGINE DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 144: ...116 F1A ENGINE DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 148: ...120 F1A ENGINE DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 150: ...122 F1A ENGINE DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 166: ...138 F1A ENGINE DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 170: ...142 F1A ENGINE DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 172: ...144 F1A ENGINE DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 213: ...107864 Figure 45 F1C ENGINE 185 DAILY EURO 4 Print 603 93 651 Base March 2006 ENGINE VIEWS ...
Page 240: ...MOTORI F1A F1C 212 F1C ENGINE DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 241: ...MOTORI F1A F1C F1C ENGINE 213 DAILY EURO 4 Print 603 93 651 Base March 2006 ...
Page 242: ...MOTORI F1A F1C 214 F1C ENGINE DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 243: ...MOTORI F1A F1C F1C ENGINE 215 DAILY EURO 4 Print 603 93 651 Base March 2006 ...
Page 244: ...MOTORI F1A F1C 216 F1C ENGINE DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 245: ...MOTORI F1A F1C F1C ENGINE 217 DAILY EURO 4 Print 603 93 651 Base March 2006 ...
Page 300: ...272 F1C ENGINE DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 322: ...294 F1C ENGINE DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 340: ...312 F1C ENGINE DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 342: ...2 CLUTCH DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 366: ...26 CLUTCH DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 368: ...2 TRANSMISSION DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 372: ...6 TRANSMISSION DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 378: ...12 TRANSMISSION DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 414: ...48 5 S 300 TRANSMISSIONS DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 416: ...50 6 S 400 O D TRANSMISSION DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 492: ...126 6 S 400 A O D TRANSMISSION DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 494: ...128 POWER TAKE OFF DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 500: ...134 POWER TAKE OFF DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 502: ...2 PROPELLER SHAFTS DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 512: ...12 PROPELLER SHAFTS DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 514: ...2 REAR AXLES DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 518: ...6 REAR AXLE NDA RS DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 530: ...18 REAR AXLE NDA RS DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 546: ...34 REAR AXLE NDA RS DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 548: ...36 REAR AXLE NDA RG DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 564: ...52 REAR AXLE NDA RG DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 566: ...54 REAR AXLE 450511 DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 578: ...66 REAR AXLE 450511 DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 594: ...82 REAR AXLE 450511 DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 596: ...84 REAR AXLE 450517 2 DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 606: ...94 REAR AXLE 450517 2 DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 608: ...96 REAR AXLE 450517 2 DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 626: ...2 AXLES DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 630: ...6 AXLES DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 632: ...8 AXLE 5817 DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 638: ...14 AXLE 5817 DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 644: ...20 AXLE 5817 DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 646: ...22 AXLE 5818 DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 654: ...30 AXLE 5819 DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 660: ...36 AXLE 5819 DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 662: ...38 AXLE 5823 DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 672: ...48 AXLE 5823 DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 674: ...50 WHEEL GEOMETRY DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 686: ...2 SUSPENSIONS DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 688: ...4 FRONT AND REAR MECHANICAL SUSPENSIONS DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 706: ...22 FRONT MECHANICAL SUSPENSIONS DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 712: ...28 FRONT MECHANICAL SUSPENSIONS DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 714: ...30 FRONT MECHANICAL SUSPENSIONS DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 724: ...40 FRONT MECHANICAL SUSPENSIONS DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 728: ...44 FRONT MECHANICAL SUSPENSIONS DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 736: ...52 REAR MECHANICAL SUSPENSIONS DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 782: ...2 WHEEL AND TYRES DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 790: ...10 WHEEL AND TYRES DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 818: ...28 STEERING GEAR DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 822: ...4 HYDRO PNEUMATIC SYSTEM BRAKES DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 922: ...24 CAB AIR CONDITIONING DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 924: ...2 SCHEDULED MAINTENANCE DAILY EURO 4 Base March 2006 Print 603 93 651 Print 603 43 351 ...
Page 936: ...14 SCHEDULED MAINTENANCE DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 1023: ...Figure 64 112286 ELECTRIC ELECTRONIC SYSTEM 87 DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Page 1110: ...174 ELECTRIC ELECTRONIC SYSTEM DAILY EURO 4 Base March 2006 Print 603 93 651 ...