NHTSA ID Number: 10161721
Manufacturer Communication Number: IS-18025A
TSB/Document Date: 2019-07-03
Summary
This instruction sheet shows how to replace kneeling level sensor #21643575 by sensor #22194741.
Instruction Sheet
IS-18025 A
KNEELING LEVEL SENSOR REPLACEMENT
REVISION : A
THIS BULLETIN SUPERSEDES PREVIOUS VERSION.
2019 06 03
Reference for air spring clearance values updated
Description:
This instruction sheet shows how to replace kneeling level sensor #21643575 by sensor #22194741.
APPLICATION FOR FRONT I-BEAM AXLE SUSPENSION
Model
VIN
From 2PCH33499CC712007
up to
2PCH33498EC712504 incl.
H3-45 coaches
Model Year : 2012 - 2014
KIT
TO
ORDER
PAGE
132117
2
132119
10
KIT
TO
ORDER
PAGE
132118
19
From 2PCH33491EC712506
up to
2PCH33491FC712815 incl.
H3-45 coaches
Model Year : 2014 - 2015
From 2PCG33493EC735538
up to
2PCG33491FC735796 incl.
X3-45 coaches
Model Year : 2014 - 2015
X3-45 Commuter
4RKG33497F9737001
Model Year : 2015
APPLICATION FOR INDEPENDENT FRONT SUSPENSION (IFS)
Model
H3-45 coaches
Model Year : 2012 - 2013
X3-45 coaches
Model Year : 2012 - 2013
VIN
2PCH33495CC712019
2PCH33499DC712235
2PCH33494DC712272
2PCH33491CC712020
2PCH33490DC712236
2PCH33495DC712362
2PCG33496CC735241 2PCG33498CC735242
2PCG33491CC735275 2PCG33493CC735276
2PCG3349XCC735291 2PCG33490DC735382
2PCG33492DC735383 2PCG3349XDC735387
2PCG33491DC735388 2PCG3349XDC735390
2PCG33491DC735391 2PCG33493DC735392
2PCG33495DC735393 2PCG33497DC735444
2PCG33496DC735449
NOTE
Material can be obtained through regular channels.
Writer: ml
IS-18025 A
Page 2 / 26
H3 FRONT I-BEAM AXLE SUSPENSION (2012-2014)
Order kit # 132117 that contains the following parts:
Part No.
22194741
Description
Qty
SENSOR
1
132123
C-SHAPE ADAPTOR
1
132121
SENSOR ARM ASSEMBLY
1
5001745
SCR CAP HEX N500 M8X25 G8.8
4
502851
NUT HEX N500 M8-1.25
5
500321
WSH BEL SPR N500 .331X.827X.098(M8,5/16)
5
5001736
WSH FL N500 8.4X18X2 (M8,5/16)
2
504637
CABLE TIE MIDDLE SIZE
4
IS-18025
INSTRUCTION SHEET
1
FI-18025
FEUILLE D’INSTRUCTIONS
1
PROCEDURE
DANGER
Park vehicle safely, apply parking brake, stop the engine. Prior to working on the vehicle, set the
ignition switch to the OFF position and trip the main circuit breakers equipped with a trip button. On
Commuter type vehicles, set the battery master switch (master cut-out) to the OFF position.
EXISTING ARM AND LEVEL SENSOR REMOVAL
1. Raise the vehicle with safe lifting equipment
and procedures.
2. Remove cable ties that support the sensor
wiring.
3. Unscrew the sensor connector cap and
disconnect the wiring.
FIGURE 1
Writer: ml
IS-18025 A
Page 3 / 26
4. Disconnect the top of the valve connecting
rod with the valve lever.
5. Keep fasteners for reinstallation.
FIGURE 2
6. Dismount the existing sensor arm from the
existing sensor and from the valve lever.
7. Discard the arm and the fasteners.
FIGURE 3
8. Dismount sensor (2 screws).
9. Discard sensor and fasteners.
FIGURE 4
Writer: ml
IS-18025 A
Page 4 / 26
10. Remove rust on the valve lever, clean it and
apply liquid lubricant. Do these operations on
four faces and only half of the lever
(connecting rod side).
FIGURE 5
11. Remove rust on the sensor bracket mounting
faces and clean it.
FIGURE 6
Writer: ml
IS-18025 A
Page 5 / 26
NEW ARM AND LEVEL SENSOR INSTALLATION
12. Assemble the sensor with the ‘’C-shape’’
support.
NOTE
Never alter the sensor for any reason.
Make sure the flat on the sensor rotor is
orientated as shown in Figure 7.
NOTE
Screw head must be inside the ‘’C-shape’’
support.
Install flat washers with the screw head side
and Belleville washers on the nut side.
FIGURE 7
13. The ‘’C-shape’’ support has arced slots to
allow angle adjustment of the sensor.
Orientate the sensor with the screws in the
middle of the arced slots and tighten.
FIGURE 8
14. Install the ‘’C-shape’’ support with the sensor
on the vehicle structural bracket.
15. Tighten the nuts.
NOTE
Screw head must be inside the ‘’C-shape’’
support.
Install Belleville washers on the nut side.
FIGURE 9
Writer: ml
IS-18025 A
Page 6 / 26
16. Install the sensor arm slider on the valve
lever.
17. Reinstall the connecting rod on the valve
lever.
FIGURE 10
18. Install new arm on the sensor. Use Belleville
washer and tighten the nut.
FIGURE 11
Writer: ml
IS-18025 A
Page 7 / 26
19. Connect existing wiring to sensor and screw
the sensor connector cap.
20. Secure the wiring with cable ties.
FIGURE 12
LEVEL SENSOR ANGLE ADJUSTMENT
FOR VEHICLES C-2007 UP TO D-2363 USE DIAGRAM D061140 P32.1 REV.04 or REV.06
FOR VEHICLES D-2364 UP E-2504 USE DIAGRAM D061340 PAGE 32.1 REV.0
Writer: ml
IS-18025 A
Page 8 / 26
21. Run the vehicle 5 minutes to fill the
pneumatic system with air pressure.
22. Go on the Technical Publications website at
this link:
23. https://techpub.prevostcar.com/en/manuals
24. Select the Technical Manual tab.
25. Enter the short VIN of you vehicle.
26. Select ‘’Maintenance’’ as Manual type and
click on the Search button.
27. Click on ‘’File List’’ button.
28. Download the Suspension section file.
FIGURE 13
29. Use ‘’spring clearance’’ words with the
search tool to find the information about the
clearance for I-Beam and Independent
suspension clearance values.
FIGURE 14
30. Into the front service compartment, locate
A46 module for vehicles C-2007 up to D2363 or A45 module for vehicles D-2364 up
E-2504.
FIGURE 15
Writer: ml
IS-18025 A
Page 9 / 26
31. Locate pin 13 on connector A46-J1 for
vehicles C-2007 up to D-2363 or on
connector A45-J1 for vehicles D-2364 up E2504.
NOTE
The wire color is white and the wire ID should
be ‘’KneelLevel’’.
FIGURE 16
32. With a voltmeter, back probe pin 13. The
voltage should be around 2.5 volts with the
normal clearance.
FIGURE 17
33. If the voltage is higher or lower than 2.5
volts, loosen the nuts that fix the sensor to
the ‘’C-shape’’ support and apply a slight
rotation.
34. Tighten the nuts, check the suspension
below clearance and the voltage.
35. Repeat previous steps until you reach 2.5
volts with the clearance.
FIGURE 18
36. Using the kneeling dash switch, adjust the vehicle at its maximum height by pressing and maintaining
the upper part of the switch. Check the voltage. It should be around 3.5 volts.
37. Using the kneeling dash switch, adjust the vehicle at its minimum height. Check the voltage. It should
be around 1.8 volts.
38. Bulletin is complete for this installation.
Writer: ml
IS-18025 A
Page 10 / 26
H3/X3 FRONT I-BEAM AXLE SUSPENSION (2014-2015)
Order kit # 132119 that contains the following parts:
Part No.
22194741
Description
Qty
SENSOR
1
132126
C-SHAPE ADAPTOR
1
132124
SENSOR ARM ASSEMBLY
1
5001745
SCREW CAP HEX N500 M8X25 G8.8
4
502851
NUT HEX N500 M8-1.25
5
500321
WASHER BELLEVILLE N500 .331X.827X.098(M8,5/16)
5
5001736
FLAT WASHER N500 8.4X18X2 (M8,5/16)
2
504637
CABLE TIE MIDDLE SIZE
4
IS-18025
INSTRUCTION SHEET
1
FI-18025
FEUILLE D’INSTRUCTIONS
1
PROCEDURE
DANGER
Park vehicle safely, apply parking brake, stop the engine. Prior to working on the vehicle, set the
ignition switch to the OFF position and trip the main circuit breakers equipped with a trip button. On
Commuter type vehicles, set the battery master switch (master cut-out) to the OFF position.
EXISTING ARM AND LEVEL SENSOR REMOVAL
39. Raise the vehicle with safe lifting equipment
and procedures.
40. Remove cable ties that support the sensor
wiring.
41. Unscrew the sensor connector cap and
disconnect the wiring.
FIGURE 19
Writer: ml
IS-18025 A
Page 11 / 26
42. Disconnect the top of the valve connecting
rod with the valve lever.
43. Keep fasteners for reinstallation.
FIGURE 20
44. Dismount the existing sensor arm from the
existing sensor and from the valve lever.
45. Discard the arm and the fasteners.
FIGURE 21
46. Dismount sensor (2 screws).
47. Discard sensor and fasteners.
FIGURE 22
Writer: ml
IS-18025 A
Page 12 / 26
48. Remove rust on the valve lever, clean it and
apply liquid lubricant. Do these operations on
four faces and only half of the lever
(connecting rod side).
FIGURE 23
49. Remove rust on the sensor bracket mounting
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TSB/Document ID: IS-18025A
Replacement Service Bulletin Number:
MFR Communication Date: 2019-06-03
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: SUSPENSION
MFR Component System:
MFR Component Subsystem:
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