SERVICE BULLETIN

BS5447E

REFERENCE:

Nova Bus Manuals

SECTION:

09: Engine and Cooling

RS NO:

MQR 7621-2653

EFFECTIVE IN PROD.:

NA

SUBJECT:

Rework allied motion e-Steering motor.

JUSTIFICATION:

24V e-steering power supply threads length tolerances are not respect to standard.

LEVEL

1

APPLICATION DEADLINES: 2024DE13
CLAIM REFERENCE NUMBER:WB-5447

DIRECT CHARGES

DESCRIPTION

Installation of steel ball on the terminals.
–

2

TIME

LABOUR

MATERIAL

Nova Bus

Nova Bus

0.33 h

–

–

–

MATERIAL REQUIRED PER VEHICLE
QTY

PART NO

REV.

N620000252

–

–

–

DESCRIPTION

LEVEL 1

2

3/16 Steel Ball

LEVEL 2

–

–

SHOP SUPPLIES
4 ml

–

N67314

NCP2 Anticorossive
(4 oz bottle)

Materials will be available within 32 days once your order has been placed.
To order, please contact novabus.parts@volvo.com
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 *

Yes

–

* To be reimbursed, the parts must be retained and returned in
accordance with the usual warranty procedure.

REVISION HISTORY
REV.

DATE

NR

2023OC31

APPROVED BY:
NQF772001 version 5

CHANGE DESCRIPTION

Initial release

Eric Charest

WRITTEN BY

G S Naveen
PAGE 1 OF 5

Signature numérique de Eric
Charest Date : 2023.10.31 15:24:51
-04'00'

SERVICE BULLETIN
ROAD NUMBER
CLIENT

ORDER

Ames Transportation Agency - Iowa

BS5447E

VIN (2NVY/4RKY...)
QTY

FROM

TO

FROM

TO

LE52

7157

7158

L82M2N9778417

L82M4N9778418

2

CMBC (TransLink) - British Columbia

LE13

H22101

H22101

L82M6M3753346

L82M6M3753346

1

Demo - Boston Massachusetts Bay Transportation
Authority - MBTA

LE54

—

—

L82L2N9778330

L82L4N9778331

2

Guelph Ontario

LE69

285

288

L82M9N3753617

L82M2N3753636

4

Houston Texas - Metro

LE77

3000

3000

L82M3N9778605

L82M3N9778605

1

Milwaukee - Wisconsin

LE16

1000

1000

L82M4N9778290

L82M4N9778290

1

Milwaukee - Wisconsin

LE17

1001

1010

L82M4N9778564

L82M9N9778611

10

San Francisco California SFMTA - LFS-e+

LE39

5010

5010

L82M2N9778305

L82M2N9778305

1

University Of Vermont

LC87

—

—

L82L5L9777539

L82L5L9777539

1

PAGE 2 OF 5
NQF772001 version 5

SERVICE BULLETIN

BS5447E

Tools Required
•

Torque wrench

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.

Open the street side panel to access e-steering motor (see figure 1).

Figure 1 - Location of E-Steering Motor

PAGE 3 OF 5
NQF772001 version 5

SERVICE BULLETIN
1.5.

BS5447E

Disconnect the E-steering motor positive (+) and negative (-) cables (see figure 2).

Figure 2 - View of E-Steering Motor Positive and Negative Cables

1.6.

Measure the positive (+) and negative (-) stud length.
NOTE

If the studs are not within the tolerances(15mm - 19mm) proceed to step 1.7.
If the studs are within the tolerance (15mm - 19mm) proceed to step 1.8.

Figure 3 - Stud Tolerance Limit.

PAGE 4 OF 5
NQF772001 version 5

SERVICE BULLETIN
1.7.

BS5447E

Unscrew studs and insert steel ball N620000252 and screw terminals (see figure 4).

Figure 4 - Installation of Steel Ball

1.8.

Retorque the studs with torque values and apply anticorrosive NCP2 on reconnected cables (see figure 5).

Figure 5 - Applying NCP2 anticorrosive on the Cables.

1.9.

Close the street side panel.

1.10.

Vehicle is ready for service.

PAGE 5 OF 5
NQF772001 version 5