NHTSA ID Number: 10153346
Manufacturer Communication Number: Sp18-39A
TSB/Document Date: 2019-02-19
Summary
This Special Bulletin explains how to perform the replacement of the SCR tank, when authorized.
PM Sensor, shake the sensor close to your ear to
detect a broken ceramic noise. If there is a sound of
broken ceramic, reject the PM Sensor, it is defective.
Install a PM sensor in good condition.
Writer: EL
Special Bulletin
SP18-39A
Date
Expiration
Release
Page
11.2018
11.2020
1
25(37)
50. Before connecting the PM Sensor, make
sure you align the keying tab with the
orientation slot in the mating boss.
51. Install the PM sensor and secure the harness as shown
using nylon ties.
PM sensor torque: 37 lbf-ft
PM sensor module: 89 lbf-in
H3 SERIES
X3 SERIES
Writer: EL
Special Bulletin
SP18-39A
Date
Expiration
Release
Page
11.2018
11.2020
1
26(37)
X3 SERIES
52. H3 SERIES – Take up the extra length of the PM
sensor harness shown on the image and secure to a
nylon tie mount.
H3 SERIES
Writer: EL
Special Bulletin
SP18-39A
Date
Expiration
Release
Page
11.2018
11.2020
1
27(37)
INSTALL THE POST-SCR NOx SENSOR
53. Apply anti-seize compound on the NOx sensor threads
and then fix onto the SCR converter. Secure the harness
as shown using nylon ties.
NOx sensor torque: 37 lbf-ft
H3 SERIES
X3 SERIES
REINSTALL THE SCR CONVERTER DRAIN TUBE
54. Insert the tube into the fitting and then tighten firmly.
H3 SERIES
X3 SERIES
Writer: EL
Special Bulletin
SP18-39A
Date
Expiration
Release
Page
11.2018
11.2020
1
28(37)
REINSTALLING THE “L” SHAPE BRACKET
55. H3 SERIES – Reinstall the upper mounting
bracket.
Writer: EL
Special Bulletin
SP18-39A
Date
Expiration
Release
Page
11.2018
11.2020
1
29(37)
DIFFUSER ASSEMBLY AND GRILLE INSTALLATION
56. Slide the diffuser assembly on the SCR converter tube.
Do not tighten at this moment.
H3 SERIES – NUT ON THIS SIDE
X3 SERIES – NUT ON THIS SIDE
Writer: EL
Special Bulletin
SP18-39A
Date
Expiration
Release
Page
11.2018
11.2020
1
30(37)
57. Install the drain tube.
58. Insert the drain tube in the drain tube guide.
H3 SERIES
X3 SERIES
Writer: EL
Special Bulletin
SP18-39A
Date
Expiration
Release
Page
11.2018
11.2020
1
31(37)
59. Install the SCR converter compartment grille on the top
of the coach. Tighten the screw in the order shown on
the image.
#500952 tapping screw #8x1/2 SS
H3 SERIES
Impossible d'afficher l'image liée. Le fichier a peut-être été déplacé, renommé ou supprimé. Vérifiez que la liaison pointe vers le fichier et l'emplacement corrects.
X3 SERIES
60. Adjust the spacing between the diffuser assembly and
the grille. The minimum spacing should be ¼″ (6 mm).
61. Adjust the diffuser assembly height above the grille. The
edge height should be 1/8″ to 1/4″ (3 mm to 6 mm) at the
diffuser corner shown on the image while the edge
height should be 1/8″ to 1/2″ (3 mm to 12 mm) at the
outer edge for the rest of the periphery.
Writer: EL
Special Bulletin
SP18-39A
Date
Expiration
Release
Page
11.2018
11.2020
1
32(37)
62. Slide the diffuser clamp close to the top of
the SCR converter outlet tube.
Measurement:
between 1/8″ to 1/2″ (2 mm to 12 mm)
63. Tighten the clamp.
Writer: EL
Special Bulletin
SP18-39A
Date
Expiration
Release
Page
11.2018
11.2020
1
33(37)
FINAL STEPS
64. Reconnect all previously removed cables to the negative (ground) battery terminals if applicable.
65. Start the engine and check for leaks of the exhaust system and proper operation.
66. Check for diagnostic troubleshooting code related to the after-treatment system, in particular, the PM
sensor and NOx sensor.
67. Using TechTool, perform a Data Reset of the components that were replaced (refer to the two
following images).
Writer: EL
Special Bulletin
Writer: EL
SP18-39A
Date
Expiration
Release
Page
11.2018
11.2020
1
34(37)
Special Bulletin
SP18-39A
Date
Expiration
Release
Page
11.2018
11.2020
1
35(37)
Part 2- VOLVO
9700 VEHICLES
You will find in Part 1 of this bulletin, useful information such as the diffuser removal/installation
procedure, strap installation, SCR converter insulating blanket installations, NOx sensor installation,
among others.
In complement to Part 1, please refer to the document listed below, available on Impact.
IDENTITY
ID/OPERATION
TITLE
129601506
2586-03-02-01
Aftertreatment Selective Catalytic Reduction (SCR) Catalyst,Replacement
FINAL STEPS
1. Reconnect all previously removed cables to the negative (ground) battery terminals if applicable.
2. Start the engine and check for leaks of the exhaust system and proper operation.
3. Check for diagnostic troubleshooting code related to the after-treatment system, in particular, the PM
sensor and NOx sensor.
4. Using TechTool, perform a Data Reset of the components that were replaced (refer to the two
following images).
Writer: EL
Special Bulletin
Writer: EL
SP18-39A
Date
Expiration
Release
Page
11.2018
11.2020
1
36(37)
Special Bulletin
SP18-39A
Date
Expiration
Release
Page
11.2018
11.2020
1
37(37)
PARTS / WASTE DISPOSAL
Return the defective SCR converter to Prevost.
ESTIMATED TIME
The time required to perform this special bulletin is approximately:
Prevost vehicles
10 hours
Volvo 9700
3 hours
OTHER
VBC Bulletin
N/A
Fail Code
04.04-1
Defect Code
09
Syst. Count
B
Causal Part
21970125
Access all our Service Bulletins on
http://techpub.prevostcar.com/en/
or scan the QR-Code with your smart phone.
Prevost engages in a continuous program of testing and evaluating to provide the best possible product. Prevost, however, is not
committed to, or liable for updating existing products.
Writer: EL
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TSB/Document ID: Sp18-39A
Replacement Service Bulletin Number:
MFR Communication Date: 2018-12-10
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE AND ENGINE COOLING
MFR Component System:
MFR Component Subsystem:
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