Iveco Stralis AT/AD. Manual — part 245
79509
ABS-EBL working diagram for 4x2 vehicles (trucks and tractors)
1. Compressor - 2. Air processing unit - 10.5 bars - 3. Front axle air tank - 20 l. - 4. Parking air tank - 20 l. - 5. Rear axle air tank
- 30 l. - 6. Manual discharge valve - 7. Air test point - 8. Parking manual control valve - 9. Handbrake low pressure switch
turned on — 6.4 bars - 10. Parking control relay valve - 11. Trailer slowing manual control valve - 12. Trailer brake servo control
valve - 13. Trailer system low pressure switch — 6.4 bars -
14.
Trailer half couplings for tractors - 15. Trailer half couplings for
trucks - 16. Parking system one-way valve - 17. Duplex control valve - 18. Rear axle combined cylinder - 19. Rear axle drum
brake assembly - 20. Rear axle phonic wheel - 21. Rear axle speed sensor - 22. Rear axle ABS solenoid valves - 23. EBL
pressure sensor - 24. Dual stop valve - 25. Rear axle brake control relay valve - 26. ASR control solenoid valve -
27. Controlled pressure valve with no return for ASR — 7.5 bars - 28. ABS electronic control unit - 29. Front axle brake control
relay valve - 30. Front axle ABS solenoid valve - 31. Front axle diaphragm brake cylinder - 32. Front axle disc brake assembly -
33. Front axle phonic wheel - 34. Front axle speed sensor - 35. Front axle parking brake - 36. Brake light control microswitch -
37. Microswitch for EDC control unit - A. To the air suspension system - B. To the service system - * Optional extra.
Figure 33
S
TRALIS
AT/AD
38
AIR SYSTEM - BRAKES
Base - January 2003
79510
ABS-EBL working diagram for 6x2C vehicles
1. A.P.U. unit - 2. Manual condensate bleeding valve - 3. 30-litre air reservoir - 4. 20 -litre air reservoir - 5. 15-litre air reservoir - 6.
Pressure check socket - 7. Retaining valve - 8. Manual control distributor for parking brake - 9. Low pressure switch -
10. Manual control distributor for trailer brake (optional) - 11. Three-control servo-distributor - 12. Low pressure switch -
13. Half-coupling ”ISO” - 14. Stop light control microswitch - 15. EDC control unit microswitch - 16. Phonic wheel -
17. Rev sensor - 18. Combined brake cylinder - 19. Drum brake assembly - 20. Membrane brake cylinder - 21. Relay valve -
22. ABS solenoid valve - 23. Pressure sensor - 24. Electronic control unit - 25. Duplex distributor - 26. Membrane cylinder -
27. Disc brake assembly - 28. Axle parking brake - 29. Compressor - A. To air suspensions - B. To services - * Optional.
Figure 34
AIR SYSTEM - BRAKES
39
S
TRALIS
AT/AD
77086
ABS-EBL working diagram for 6x4 vehicles
1. Compressor - 2. Air Processing Unit — 10.5 bar - 3. Front axle air tank — 20 l - 4. Parking air tank — 20 l
5. Rear axle air tank — 30 l - 6. Manual exhaust valve - 7. Rear axle air tank - 20 l - 8. Pneumatic control drive - 9. Parking
control manual distributor - 10. Low pressure switch for hand brake in — 6.4 bar - 11. Parking control relay valve - 12. Manual
distributor for slowing down trailer - 13. Servo distributor to control trailer braking - 14. Trailer system low pressure switch —
6.4 bar - 15. Trailer half couplings for tractors - 16. Trailer half couplings for trucks - 17. Parking system single-acting valve -
18. Duplex distributor - 19. Combined rear axle cylinder - 20. Rear axle drum brake assembly - 21. Combined front axle
cylinder - 22. Front axle drum brake assembly - 23. Rear axle phonic wheel - 24. Rear axle speed sensor - 25. Rear axle ABS
solenoid valves - 26. EBL pressure sensor - 27. ABS electronic central unit - 28. Rear axle braking control relay valve -
29. Double cutoff valve - 30. Non-return pressure-controlled valve for ASR - 7 bar - 31. Solenoid control valve for driving ASR
- 32. Front axle braking control relay valve - 33. Front axle ABS solenoid valve - 34. Front axle membrane brake cylinder -
35. Front axle phonic wheel - 36. Front axle speed sensor - 37. Front axle disk brake assembly - 38. Stop lights control micro
switch - 39. EDC central unit micro switch - A. To pneumatic suspension system - B. To services system - * Optional.
Figure 35
S
TRALIS
AT/AD
40
AIR SYSTEM - BRAKES
Base - January 2003
79511
ABS-EBL working diagram for stand alone 4x2 vehicles (trucks)
1. Compressor - 2. Air processing unit - 10.5 bars - 3. Air tank - 20 l. - 4. Air tank - 30 l. - 5. Manual discharge valve - 6. Air test
point - 7. Parking manual control valve - 8. Handbrake low pressure switch turned on — 6.4 bars - 9. Parking system one-way
valve - 10. Duplex control valve - 11. Rear axle combined cylinder - 12. Rear axle drum brake assembly - 13. Rear axle phonic
wheel - 14. Rear axle speed sensor - 15. Rear axle ABS solenoid valves - 16. EBL pressure sensor - 17. Dual stop valve -
18. Rear axle brake control relay valve - 19. ASR control solenoid valve - 20. Controlled pressure valve with no return for ASR
— 7.5 bars - 21. ABS electronic control unit - 22. Front axle brake control relay valve - 23. Front axle ABS solenoid valve -
24. Front axle diaphragm brake cylinder - 25. Front axle disc brake assembly - 26. Front axle phonic wheel - 27. Front axle
speed sensor - 28. Front axle parking brake - 29. Brake light control microswitch - 30. Microswitch for EDC control unit -
A. To the air suspension system - B. To the service system - * Optional extra.
Figure 36
AIR SYSTEM - BRAKES
41
S
TRALIS
AT/AD
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