NOvaBUS

SERVICE BULLETIN

BS4848ER1

APPLICATION DEADLINE: 2022JL29

CLAIM REFERENCE NUMBER: WB-4848

REFERENCE: Nova Bus Manuals
SECTION: 02: Engine and Cooling
RS N°: MQR 7621-1834

EFFECTIVE IN PROD.:

N/A

SUBJECT:

Electric Cooling Package (ECP) power cable lugs and junction bus bar corrosion.

JUSTIFICATION:

Corrosion problems at the junction bus bar used for the 24 volts power distribution
between the alternator, the super capacitor and the electric fans of the ECP.

DIRECT CHARGES
LEVEL DESCRIPTION TIME
LABOUR | MATERIAL
1 inspecting and cleaning of the power cable lugs and junction bus Nova Bus | Nova Bus | 1.75h
2 Replacing the damaged or corroded cables and junction bus bar. Nova Bus | Nova Bus | 0.25h

MATERIAL
QTY PART N° REV. DESCRIPTION REPLACES PART
Ne
LEVEL 1
1 N57807 —__| Mount w/ Cable Tie =
2 N44887 - Nut Locknyl M6 -
4 N100476 —__| Alternator Deflector Bracket -

LEVEL 2 (5% of 10 vehicles)

1 N90588 = Busbar 3-Stud 650A Assembly =
41 N91748-01 - | Cable Assembly C1042 4/0 AWG BK-RD -
1 N94656-01 —__| Cable Assembly C1133 4/0 AWG BK-RD -
1 N94647-05 — | Cable Assembly C1134 4/0 AWG BK-RD -

Materials will be available within 48 days. To order, please contact Prevost Parts by phone at 1-800-771-6682, by fax at
1-888-668-2555 or by email at prevostparts.commandes@volvo.com. Specify document number, quantity of parts required

and shipping address.

DISPOSAL OF PARTS

REMOVED PARTS ARE: LDISCARDED | RETAINED | « Dispose of the unused parts and the defective parts in
Yes _ accordance with local environmental standards in effect.
REVISION HISTORY
REV. DATE CHANGE DESCRIPTION WRITTEN BY
NR 2020DE15 Initial release Yuvaraj J
Level 2 BOM items modified:
Rt 2021MA28 - Cable assembly C1133 was N94656-05 Devanand
- Cable assembly C1134 used for both LB76 & LB77
- Cable assembly C1077 removed for LB77
Digitally signed by Jean-Nicolas Fournier
APPROVED BY: DN: cn=Jean-Nicolas Fournier, o=Nova Bus, email=jean- PAGE 1 OF 12

NQF772001 VERSION 3

Jean-Nicolas Fournier

nicolas fournier@volvo.com, ¢=CA
Date: 2021.05.28 10:39:21 -04'00'

NOvaBUS

SERVICE BULLETIN

BS4848ER1

SHOP SUPPLY

4.0 Oz N8910847 - | Citrus Degreaser -
(20 Oz Spray Can, 15 Oz / 425 g Net Wt.)
3.2 Oz N8910848 — | QD Contact Cleaner -
(16 Oz Spray Can, 11 Oz/ 311 g Net Wt.)
4.0 Oz N8910809 — | Dolph-Spray ER-44 Aerosol Red Air-Drying Varnish =
(20 Oz Spray Can)
Note:

N8910847 (Citrus Degreaser)
1ea=200z

4.0 Oz/ Bus (0.2 * 20 Oz can)

40 Oz for 10 buses (4.0 * 10 buses)
2. cans for entire campaign

N8910848 (QD Contact Cleaner)

1 ea=16 Oz

3.2 Oz / Bus (0.2 * 16 Oz can)

32 Oz for 10 buses (3.2 * 10 buses)
2 cans for entire campaign

N8910809 (Dolph-Spray ER-44)
1ea=200z

4.0 Oz/ Bus (0.2 * 20 Oz can)

40 Oz for 10 buses (4.0 * 10 buses)
2 cans for entire campaign

NQF772001 VERSION 3

ROAD NUMBER VIN (2NVY/4RKY...)
CLIENT ORDER QTY
FROM TO FROM To
Rochester New York - RTS LB76 1901 1901 L82J3K9777052 L82J3K9777052 1
Rochester New York - RTS LB77 1902 1910 L82J4K9777352 L82J3K9777360 9
PAGE 2 OF 12

NOVvaBUS SERVICE BULLETIN BS4848ER1

Mo WARNING

FOLLOW YOUR INTERNAL SAFETY PROCEDURES.

PROCEDURE

1.1. Park the vehicle on an even surface with transmission on neutral (N).
1.2. Turn the master control switch to the OFF position and engage the parking brake.
1.3. Set the master control switch to the STOP position (see figure 1).

Master control switch in
STOP position

Figure 1 - Master Control Switch in STOP Position

1.4. Set the battery disconnect switch in the battery compartment to the OFF position (see figure 2).

Battery disconnect
switch in the OFF
position

Main power light
turned OFF

Figure 2 - View of Battery Disconnect Switch

PAGE 3 OF 12

NQF772001 VERSION 3

NOVvaBUS SERVICE BULLETIN BS4848ER1

& CAUTION