BS5388E

BS5388E
SERVICE BULLETIN
REFERENCE:
Nova Bus Manuals
SECTION:
14: Heating and ventilation
RS NO:
MQR 7621-2543
APPLICATION DEADLINES: 2024JU01
CLAIM REFERENCE NUMBER:WB5388
EFFECTIVE IN PROD.: NA
SUBJECT:
AC defroster suction line
JUSTIFICATION:
Condensation dripping from AC hose
LEVEL
1
DIRECT CHARGES
DESCRIPTION
Install insulation on AC hose above the front door
2
–
TIME
LABOUR
MATERIAL
Nova Bus
Nova Bus
4h
–
–
–
MATERIAL REQUIRED PER VEHICLE
QTY
PART NO
REV.
DESCRIPTION
1
N8951380*
–
INSUL TUBE 3/4"ID, 1/2" WALL, 6FT
5
N84090-12*
A
P-CLAMP ID 1.750"THK 0.040"M8
2
N68156*
B
CABLE TIE
LEVEL 1
LEVEL 2
–
–
–
–
*Parts are already on hand, no need to order
DISPOSAL OF PARTS
REMOVED PARTS ARE:
DISCARDED
*
RETAINED
Yes
–
* Dispose of the unused parts and the defective parts in
accordance with local environmental standards in effect.
REVISION HISTORY
REV.
DATE
NR
2023MR20
APPROVED BY:
NQF772001 version 5
CHANGE DESCRIPTION
Initial release
WRITTEN BY
André Pelletier
signed by Jean-Nicolas Fournier
Jean-Nicolas Fournier Digitally
Date: 2023.03.23 14:16:42 -04'00'
PAGE 1 OF 4
SERVICE BULLETIN
CLIENT
ORDER
ROAD NUMBER
BS5388E
VIN (2NVY/4RKY...)
FROM
TO
FROM
TO
QTY
Montgomery County - Maryland
LC33
194600
194600
S92J1K9777351
S92J1K9777351
1
Montgomery County - Maryland
LC34
1946001D
1946015D
S92J4L9777474
S92J2L9777490
15
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NQF772001 version 5
SERVICE BULLETIN
BS5388E
WARNING
FOLLOW YOUR INTERNAL SAFETY PROCEDURES.
PROCEDURE
1.1.
Park the vehicle on an even surface with the transmission on neutral.
1.2.
Apply the parking brake and set the master control switch to the stop position.
1.3.
Set the battery disconnect switch in the battery compartment to the off position.
1.4.
Remove the first baselight (BR1).
1.5.
Open the main panel (RF0) and the front door compartment.
Main panel (RF0)
AC defroster hose
Front Door
Compartment
First baselight
(BR1)
Front door
Figure 1 - Hoses Location
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NQF772001 version 5
BS5388E
SERVICE BULLETIN
1.6.
Remove curtain accessories for a better access to the hose.
1.7.
Remove the p-clamps on larger (cold) hose and install the new insulation tube with the cut side up between
the point A and B shown in the figure below.
1.8.
Replace p-clamps with N84090-12 and install new cable ties N68156 if required.
P-clamps
A
B
Figure 2 - Install the Insulation Tube
1.9.
Reinstall removed components and close all panels.
1.10.
The vehicle may return in service.
New p-clamp
N84090-12
New insulation tube
N8951380
Figure 3 - View After Installation
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NQF772001 version 5