Front electro-pneumatic suspension - Vehicle 382.154 |
1 | Front axle |
2 | Lower stringers of the frame |
H1 | Measuring points - NR electro-pneumatic suspension |
B32.22-0066-05
Front electro-pneumatic suspension - Vehicle 382.155/158 |
1 | Front axle |
2 | Lower stringer of the frame |
H1 | Measuring points - NR electro-pneumatic suspension |
B32.22-0053-11
Intermediate electro-pneumatic suspension - Vehicle 382.155/158 |
1 | ZF drag axle |
2 | Frame stringer |
H3 | Measuring points for the NR electro-pneumatic suspension height |
B32.22-0052-11
Rear electro-pneumatic suspension - Vehicle 382.154/155/158 |
1 | Bellows bracket fastening clamps on the rear axle |
2 | Frame stringer |
H2 | Measuring points for the height of the NR rear electro-pneumatic suspension |
B32.22-0011-05
Danger | Risk of death from lowering vehicle when working between wheels and body. Risk of injury from pinching or crushing when working on the air suspension. | Testing and repair work between the wheel and wheel arch or in the wheel well should only be performed if the vehicle is secured using suitable support fixtures to prevent it from lowering. | |
1 | Park the vehicle over a pit | Apply parking brake and chock the wheels to prevent that the vehicle moves accidentally. | |
2 | Check the pneumatic pressure system of the vehicle for working conditions | .Minimum Pneumatic pressure in which ENR stops working in the front axle | |
Calibrate | |||
3 | Loosen the rod of all sensors in the lower fixing, and place the actuation arms of the sensors at the normal position | ||
The calibration includes the adjustment of the three height levels controlled by the level sensors. | |||
Lock the level sensors. | |||
4 | Connect the diagnosis equipment in the vehicle diagnostic connector | ||
5 | Access the HHT WIN | ||
6 | Access the electronic control unit EN1 | ||
7 | Access "Activations" on the functions screen | ||
8 | Access "Electromagnetic valves test" | ||
9 | Access ”Front axle” on the “Activations” screen | ||
10 | Type F1 to put the vehicle at the “Normal height H1” and check the values of the table on the screen | .Front electropneumatic suspension, adjustment with the ENR (ECAS) system | |
11 | Access ”Front axle” on the “Activations” screen | ||
12 | Type F2 to put the vehicle at the “Normal height H2” | .Rear electropneumatic suspension adjustment height, with ENR (ECAS) system | |
13 | Access “Trailing axle” on the “Activations” screen | ||
14 | Type F2 to put the vehicle at the “Normal height H3” | .Intermediate electropneumatic suspension adjustment height, with ENR (ECAS) system | |
15 | Fasten the level sensor rods on the bottom fastening brackets. | ||
16 | Adjust the level sensor rods and tighten the adjusting nuts | Do not remove the sensor locks to avoid erroneous measuring. | |
17 | With the diagnosis equipment switched on, check the values indicated on the screen, and read in Counts | Confirm on the screen the values displayed of each sensor and write them down on a separate sheet of paper. | |
18 | Remove the sensor locks | In this position, the vehicle will be adjusted at the “Normal height H1 and H2". | |
19 | Access again the “Front axle” in “Activations” and key-in F1 to lower the vehicle on the right side to the “Bottom height H1” | .Front electropneumatic suspension, adjustment with the ENR (ECAS) system | |
20 | Key-in F2t o lower the vehicle right side to the “Bottom height H2” | .Rear electropneumatic suspension adjustment height, with ENR (ECAS) system | |
21 | Type F2 to lower the vehicle on the trailing axle to the “Lower height H3” | .Intermediate electropneumatic suspension adjustment height, with ENR (ECAS) system | |
22 | Put the vehicle again in the “Normal height” position | ||
23 | Put the vehicle at position of “upper height H1 and H2” | ||
24 | Access “Activations” and write down the values in Counts shown on the screen | ||
25 | Return to “Activations” and select “Parameterization” | ||
26 | Change the Parameter “7” to “3 Calibration Levels” | ||
27 | Return on the screen, and in “Functions”, activate “Level Calibration” | ||
28 | Enter the calibration values written down on the separate sheet | ||
29 | Select “Activations” and “Rear axle” | ||
30 | Access the screen “Calibration”, and in “Level adjust” | ||
31 | Access “Front axle adjust” | ||
32 | Insert the read values in Counts | ||
33 | Access the screen “Calibration”, and in “Level adjustment” | ||
34 | Access “Rear axle adjustment” | ||
35 | Insert the read values in Counts | ||
36 | Access the screen “Calibration”, and in “Level adjustment” | ||
37 | Access “Trailing axle adjustment” | ||
38 | Insert the read values in Counts | ||
39 | Return on the screen “Calibration”, access the screen “Level adjustment” | ||
40 | Access “Calibrate”, and type on “Enter” | The values will be transfered to the vehicle's electronic module. | |
With this operation the calibration is finished. | |||
41 | Turn on the ignition key and note the light on dashboard | After turning off and on the contact key, the suspension will adjust itself again. | |
If the light remains on: | |||
| |||
Carry out the calibration again | |||
42 | After finishing the adjusting, disconnect the diagnosis equipment from the vehicle electronic control unit | ||
43 | Apply chemical seal in the nuts of the adjusting rods | ||
Calibrating in a simplified way | |||
44 | Connect the diagnosis equipment in the vehicle diagnostic connector | The calibration in a simplified way eases the work in the cases that the vehicle already is with the sensors adjusted on the "Normal height". | |
The level sensors should be unblocked and with the rods adjusted. | |||
45 | Access the HHT WIN | ||
46 | Access the electronic control unit EN1 | ||
47 | Select on the “Level calibration” screen and insert the calibration values from the table for the axles | .Front electropneumatic suspension, adjustment with the ENR (ECAS) system | |
.Intermediate electropneumatic suspension adjustment height, with ENR (ECAS) system | |||
.Rear electropneumatic suspension adjustment height, with ENR (ECAS) system | |||
48 | Return to the “Calibration” screen and access the function “Calibrating” | ||
49 | Turn-off the ignition key to memorize the calibration values | ||
50 | Open and close the vehicle door | After this operation, the vehicle assumes, through the Electronic module, the normal calibration heights. | |
51 | Disconnect the diagnosis equipment from the vehicle electronic control unit | ||
52 | Carry out a test route | Preferably, pass through routes with uneven surfaces | |
Check the vehicle's behavior. |
Referenced documents
- ar3222b4000a Remove/install turning angle sensor
- as3222z000101a Risk of death from lowering vehicle when working between wheels and body. Risk of injury from pinching or crushing when working on the air suspension.