BS5543E

SERVICE BULLETIN
APPLICATION DEADLINE: 2025MR07
Nova Bus Manuals
16: Electrical system
REFERENCE:
SECTION:
BS5543E
CLAIM REFERENCE NUMBER: WB-5543
O
MQR 7621-2619
EFFECTIVE IN PROD.: NA
RS N :
SUBJECT:
Battery tray structure cracks.
JUSTIFICATION:
Battery tray structure cracks due to thin sheet metal.
LEVEL
DIRECT CHARGES
DESCRIPTION
LABOUR
MATERIAL
TIME
1
Install brace to tray bottom, apply torque to hinge bolts and inspect
support arm.
Nova Bus
Nova Bus
1.5 h
2
Replace battery tray, apply torque to hinge bolts and inspect support arm.
Nova Bus
Nova Bus
1.5 h
MATERIAL REQUIRED PER VEHICLE
QTY
PART NO
REV.
DESCRIPTION
LEVEL 1
1
N108101
TUBE ASSEMBLY
6
N8951500
SERRATED NUT
6
N44892
B
NUT LOCKNYL M10 FL SSA2 C70
N97990
B
BATTERY TRAY 4 BATT ASSEMBLY
LEVEL 2
1
SHOP SUPPLIES
–
–
–
–
Materials will be available within 37 days once your order has been placed.
To order, please contact [email protected]
Or by phone for CANADA 1-800-771-6682, for USA 1-877-999-8808
Specify document number, quantity of parts required and shipping address.
DISPOSAL OF PARTS
REMOVED PARTS ARE:
DISCARDED
*
RETAINED
–
–
* Dispose of the unused parts and the defective parts in
accordance with local environmental standards in effect.
REVISION HISTORY
REV.
DATE
CHANGE DESCRIPTION
WRITTEN BY
NR
2024JA16
Initial release
Rajendra N M
APPROVED BY:
NQF772001 VERSION 3
Irina
Signature
numérique de
Irina Negoescu
Negoescu Date : 2024.02.05
13:31:09 -05'00'
PAGE 1 OF 8
SERVICE BULLETIN
ROAD NUMBER
CLIENT
ORDER
Maryland Transit Administration - MTA - Maryland
BS5543E
VIN (2NVY/4RKY...)
QTY
FROM
TO
FROM
TO
LB82
20001
20001
L82J8K9777273
L82J8K9777273
1
Maryland Transit Administration - MTA - Maryland
LB83
20031
20031
S92J9K9777288
S92J9K9777288
1
Maryland Transit Administration - MTA - Maryland
LC27
20002
20030
L82JXL9777602
L82J4L9777658
29
Maryland Transit Administration - MTA - Maryland
LC28
20032
20070
S92J5L9777628
S92J3L9777689
39
Maryland Transit Administration - MTA - Maryland
LD82
21001
21003
L82J2M9777921
L82J3M9777961
3
Maryland Transit Administration - MTA - Maryland
LD82
21004
21013
L82J5M9777962
L82JXM9777987
10
Maryland Transit Administration - MTA - Maryland
LD82
21014
21014
L82J6M9777999
L82J6M9777999
1
Maryland Transit Administration - MTA - Maryland
LD82
21015
21015
L82J7M9778000
L82J7M9778000
1
Maryland Transit Administration - MTA - Maryland
LD82
21016
21020
L82J9M9778001
L82J0M9778016
5
Maryland Transit Administration - MTA - Maryland
LD82
21021
21021
L82J2M9778017
L82J2M9778017
1
Maryland Transit Administration - MTA - Maryland
LD82
21022
21023
L82J4M9778018
L82J6M9778019
2
Maryland Transit Administration - MTA - Maryland
LD82
21024
21024
L82J2M9778020
L82J2M9778020
1
Maryland Transit Administration - MTA - Maryland
LD82
21025
21029
L82J4M9778021
L82J6M9778036
5
Maryland Transit Administration - MTA - Maryland
LD82
21030
21030
L82J8M9778037
L82J8M9778037
1
Maryland Transit Administration - MTA - Maryland
LD82
21031
21034
L82JXM9778038
L82J0M9778047
4
Maryland Transit Administration - MTA - Maryland
LD82
21035
21036
L82J2M9778048
L82J4M9778049
2
Maryland Transit Administration - MTA - Maryland
LD82
21037
21037
L82J0M9778050
L82J0M9778050
1
Maryland Transit Administration - MTA - Maryland
LD82
21038
21038
L82J7M9778062
L82J7M9778062
1
Maryland Transit Administration - MTA - Maryland
LD82
21039
21042
L82J9M9778063
L82J4M9778066
4
Maryland Transit Administration - MTA - Maryland
LD82
21043
21044
L82J6M9778067
L82J8M9778068
2
Maryland Transit Administration - MTA - Maryland
LD82
21045
21045
L82JXM9778069
L82JXM9778069
1
Maryland Transit Administration - MTA - Maryland
LD82
21046
21046
L82J2M9778079
L82J2M9778079
1
Maryland Transit Administration - MTA - Maryland
LD82
21047
21050
L82J9M9778080
L82J4M9778083
4
Maryland Transit Administration - MTA - Maryland
LD82
21051
21070
L82J6M9778084
L82J9M9778127
20
PAGE 2 OF 8
NQF772001 VERSION 3
SERVICE BULLETIN
BS5543E
WARNING
FOLLOW YOUR INTERNAL SAFETY PROCEDURES.
CAUTION
Before removing, dismantling or maintaining any electrical component, the electrician should take the
necessary precautions to avoid any risk of personal injury or damage to the equipment. If necessary, mark
all wiring prior to disconnecting, to facilitate reconnection.
PROCEDURE
1.1.
Park the vehicle on an even surface with the transmission on neutral.
1.2.
1.3.
1.4.
1.5.
Apply the parking brake and set the master control switch to the stop position.
Set the battery disconnect switch in the battery compartment to the off position.
Locate the battery compartment and access the battery tray.
Release the anchor bolt of the tray and swing it outward, away from the vehicle.
ANCHOR BOLT
Figure 1 - Battery Compartment
1.6.
Inspect battery tray bottom. If no crack is found proceed with Level 1. If tray bottom is cracked, proceed with
Level 2.
PAGE 3 OF 8
NQF772001 VERSION 3
SERVICE BULLETIN
BS5543E
LEVEL 1 : INSTALL BRACE TO TRAY BOTTOM
Step 1: Torque hinge bolts
1.7.
1.8.
Apply blue loctite to the threads of the hinge bolts and torque all four bolts to 33 Nm.
Apply torque seal to the bolt heads.
Figure 2 - Location of Battery Tray Hinge Bolts
Figure 3 - Line Diagram of Battery Tray Hinge Bolts with Torque
PAGE 4 OF 8
NQF772001 VERSION 3
SERVICE BULLETIN
BS5543E
Step 2: Installation of Brace to tray bottom
1.9.
Disconnect the batteries.
1.10.
1.11.
1.12.
1.13.
1.14.
Make sure to secure the cables to avoid any risk of creating a short circuit.
Remove the battery bolts and holddowns.
The batteries can be removed from the tray.
Clean dirt and debris from the tray bottom.
Screw the six bolts without any washers in the weld nuts from the under side of the battery tray and snug tight.
Figure 4 - Installation of Bolts Under the Tray
1.15.
Slide the brace in place and screw the serrated nuts down.
Figure 5 - Installation of Brace to Tray Bottom
PAGE 5 OF 8
NQF772001 VERSION 3
SERVICE BULLETIN
1.16.
BS5543E
Hold the bolts under the tray with a wrench and torque the serrated nuts to 40 Nm.
Figure 6 - Installation of Serrated Nuts
1.17.
Install the batteries, cables and holddowns.
Figure 7 - Installation of Batteries and Cables
PAGE 6 OF 8
NQF772001 VERSION 3
SERVICE BULLETIN
1.18.
BS5543E
Install the lock nuts without any washer and torque to 7 Nm.
Figure 8 - Installation of Lock Nut
Step 3: Inspection of Support Arm
1.19.
Ensure the support arm makes contact with the bottom of the battery tray.
Figure 9 - Inspection of Support Arm
PAGE 7 OF 8
NQF772001 VERSION 3
SERVICE BULLETIN
1.20.
1.21.
BS5543E
Adjust the support arm if necessary, using a torque wrench to tighten the bolts to a torque of 33 Nm.
Apply torque seal to the nuts.
Figure 10 - Applying Torque Seal to The Nuts
1.22.
Vehicle is ready for service ❖
PAGE 8 OF 8
NQF772001 VERSION 3