BS4972ER1

SAV.1E.2012MA
BS4972ER1
SERVICE BULLETIN
REFERENCE:
Nova Bus Manuals
SECTION:
09: Engine and Cooling
RS NO:
MQR 7621-1684
APPLICATION DEADLINE: 2022JL08
CLAIM REFERENCE NUMBER: WB-4972
EFFECTIVE IN PROD.: LD77
SUBJECT:
Intermittent low oil level alarms.
JUSTIFICATION:
Reports of intermittent low oil level telltale alarms when oil level is adequately filled.
LEVEL
1
DIRECT CHARGES
DESCRIPTION
Replacement of Hydraulic Oil Level Sensor.
2
–
TIME
LABOUR
MATERIAL
Novabus
Novabus
0.25 hr
–
–
–
MATERIAL
QTY
PART NO
REV.
DESCRIPTION
1
N99760
–
SENSOR LEVEL HYDRAULIC
1
G5007994
–
CABLE TIE (8428098,99,8877976)
–
–
N37086
–
REPLACES PART N°
LEVEL 1
N85184
–
LEVEL 2
–
–
–
SHOP SUPPLY
2 ml
LOCTITE THREAD SEALANT WHITE
–
Note:
N37086 (LOCTITE THREAD SEALANT WHITE)
1 ea = 250ml
2 ml / Bus
336 ml for 168 buses
1.34~2 Tubes for the entire campaign.
Materials will be available within 67 days once your order has been placed. To order, please contact Prevost Parts
by phone at 1‑800‑771‑6682, by fax at 1‑888‑668‑2555 or by email at [email protected].
Specify document number, quantity of parts required and shipping address. Use the supplier Purosil to order the
parts
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
2020DE17
Initial release
Devanand
R1
2021MR26
Revised Client list LC98 added.
Devanand
APPROVED BY:
CHANGE DESCRIPTION
Jean-Nicolas Fournier
Digitally signed by Jean-Nicolas Fournier
DN: cn=Jean-Nicolas Fournier, o=Nova Bus,
[email protected], c=CA
Date: 2021.03.26 10:28:19 -04'00'
WRITTEN BY
PAGE 1 OF 5
SERVICE BULLETIN
CLIENT
+
ORDER
ROAD NUMBER
SAV.1E.2012MA
BS4972ER1
VIN (2NVY/4RKY...)
QTY
FROM
TO
FROM
TO
18301
18404
L82L8J3751245
L82L3J3751444
104
CMBC (TransLink) - British Columbia
LB31
CMBC (TransLink) - British Columbia
LB32
18451
18473
L82J5J9776726
L82J4J9776748
23
CMBC (TransLink) - British Columbia
LB74
H19301
H19302
L82M3K3751678
L82M7K3751702
2
Thunder Bay Ontario - Metrolinx
LA01
—
—
L82J5H3750448
L82J7H3750449
2
Thunder Bay Ontario - Metrolinx
LA57
—
—
L82J8H3750895
L82J8H3750928
12
Moncton (Codiac) - New Brunswick
LA42
—
—
L82J8H9776066
L82J0H9776076
11
Moncton (Codiac) - New Brunswick
LA58
—
—
L82J2J9776389
L82J2J9776389
1
Moncton (Codiac) - New Brunswick
LB84
N/A
N/A
L82J3K9777004
L82J3K9777004
1
RMA World wide chauffeured Transportation
LC98
N/A
N/A
L82J6L9777693
L82J7L9777704
12
PAGE 2 OF 5
SERVICE BULLETIN
SAV.1E.2012MA
BS4972ER1
WARNING
Follow your internal safety procedures.
PROCEDURE
1.1.
Park the vehicle on an even surface with transmission in neutral (N).
1.2.
Turn the ignition switch to OFF position and engage the parking brake.
1.3.
Set the master control switch in 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 OFF
position
Main power light
turned OFF
Figure 2 - View of Battery Disconnect Switch
PAGE 3 OF 5
SERVICE BULLETIN
SAV.1E.2012MA
BS4972ER1
WARNING
Before starting any work on the vehicle, make sure the vehicle is completely and securely stationary.
Disconnect the starting circuit on the control box at the rear of the vehicle and place the battery disconnect
switches in the off position.
FOR DIESEL BUS CONFIGURATION:
1.5.
Open the engine compartment rear door to access the hydraulic tank (see figures 3 and 4)
1.6.
Cut the cable tie and disconnect the hydraulic oil level sensor electrical connector (see figure 4).
Oil Sensor
Electrical Connector
Figure 3 - Rear Door Compartment
Figure 4 - Hydraulic Tank Location
FOR HYBRID BUS CONFIGURATION:
1.7.
Open the eSteering compartment door to access the hydraulic tank (see figures 5 and 6).
1.8.
Disconnect the hydraulic oil level sensor electrical connector (see figure 6).
Oil Sensor
Figure 5 - eSteering Compartment
Figure 6 - Hydraulic Tank Location
PAGE 4 OF 5
SERVICE BULLETIN
SAV.1E.2012MA
BS4972ER1
1.9.
Apply a bead of Loctite 565 thread sealant (P/N N37086) onto male threads of the new sensor starting two
threads from the end (see figure #7).
1.10.
Unscrew and remove the existing oil sensor from the hydraulic oil tank.
1/4" - L8 NPTF
Thread Sealant
Figure 7 - Hex Head Plug
1.11.
Use a clean rag or cloth to catch any fluid that may escape the hydraulic oil tank sensor threaded hole.
1.12.
Immediately insert the new sensor into the hole and quickly fasten it finger tight. Torque to 2 turns past
finger tight using an appropriate wrench. The recommended installation torque is 9Nm. (There is no specific
mounting orientation to respect).
1.13.
Apply torque seal bead once tightened.
1.14.
Reconnect electrical connector and tie wrap to existing support.
1.15.
Return the bus to service.
PAGE 5 OF 5