FT5361

FT5361
FAST TRACK
REFERENCE:
Nova Bus Manuals
APPLICATION DEADLINE: 2025JA31
SECTION:
10: Transmission and control
CLAIM REFERENCE NUMBER: WB-5361
RS NO:
MQR 7621-2275
EFFECTIVE IN PROD.: NA
SUBJECT:
Coolant pipe assy failing.
JUSTIFICATION:
The adaptor on the Coolant pipe assembly between the engine and circulation pump
broke in service at the beginning of the copper thread.
LEVEL
DIRECT CHARGES
DESCRIPTION
LABOUR
MATERIAL
TIME
1
Inspection of adaptor.
Nova Bus
–
0.25 hr
2
Installation of adaptor.
Nova Bus
Nova Bus
1.5 hr
MATERIAL REQUIRED PER VEHICLE
QTY
PART NO
REV.
DESCRIPTION
–
–
–
N79945
–
Pipe assy ORS-M-20/NPT-M-12
A
Loctite Thread sealant 565
1ea= 50ml (2 bottles for the campaign)
LEVEL 1
–
LEVEL 2
1
SHOP SUPPLIES
3 ml
N37086
Materials will be available within 248 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
Yes
–
* Dispose of the unused parts and the defective parts in
accordance with local environmental standards in effect.
REVISION HISTORY
REV.
DATE
NR
2023FE27
APPROVED BY:
NQF772001 VERSION 3
CHANGE DESCRIPTION
Initial release
Jean-Nicolas Fournier
WRITTEN BY
Nandan B S
Digitally signed by Jean-Nicolas
Fournier
Date: 2023.03.14 14:56:12 -04'00'
PAGE 1 OF 5
FT5361
FAST TRACK
CLIENT
ORDER
ROAD NUMBER
VIN (2NVY/4RKY...)
FROM
TO
FROM
TO
QTY
New York City Transit New York - NYCT Demo
LD23
9620
9622
L82LXL9777634
L82L5L9777668
3
New York City Transit New York - NYCT
LC79
9623
9703
L82L1M9777782
L82LXM9777862
81
New York City Transit New York - NYCT
LC79
9704
9784
L82L1M9777863
L82L4M9777954
81
New York City Transit New York - NYCT
LD64
9785
9805
L82L0M9777871
L82L5M9777980
21
New York City Transit New York - NYCT
LD64
9806
9806
L82L7M9777981
L82L7M9777981
1
New York City Transit New York - NYCT
LD64
9807
9811
L82LXM9777988
L82L1M9777992
5
New York City Transit New York - NYCT
LD64
9812
9812
L82L3M9777993
L82L3M9777993
1
New York City Transit New York - NYCT
LD64
9813
9828
L82L5M9777994
L82L7M9778015
16
New York City Transit New York - NYCT
LD64
9829
9832
L82L4M9778022
L82LXM9778025
4
New York City Transit New York - NYCT
LD64
9833
9843
L82L1M9778026
L82LXM9778039
11
New York City Transit New York - NYCT
LD64
9844
9844
L82L1M9778043
L82L1M9778043
1
New York City Transit New York - NYCT
LD64
9845
9910
L82L3M9778044
L82L1M9778155
66
PAGE 2 OF 5
NQF772001 VERSION 3
FAST TRACK
FT5361
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.
Lift the rear 5 seat and remove the engine access trap (see figure 1).
Figure 1 - Location of Engine Access Trap
1.5.
Locate and inspect the adaptor located between the elbow and the copper pipe (see figure 2).
Figure 2 - View of Adaptor between Elbow and Copper pipe
PAGE 3 OF 5
NQF772001 VERSION 3
FAST TRACK
1.6.
FT5361
Check for any sign of crack initiation, leakage at the bottom of the threads or at the geometry change of the
adaptor and replace if found (see figure 3).
NOTE
FOLLOW MAINTENANCE MANUAL LD64, SECTION 09: ENGINE COOLING SYSTEM FOR DRAIN AND
FILL PROCEDURES.
Figure 3 - View of Cracked Adaptor
1.7.
Apply Loctite 565 thread sealant on the new adaptor (NPT end only) (see figure 4).
Figure 4 - Apply Loctite
PAGE 4 OF 5
NQF772001 VERSION 3
FAST TRACK
FT5361
1.8.
Hand tighten the adaptor in the elbow and add an extra 1.5 turn.
1.9.
Make sure O-ring is positionned in the groove of the adaptor ORS end and connect the copper pipe.
1.10.
Apply torque pipe nut to 128-142 Nm (see figure 5).
Figure 5 - Apply torque to pipe nut
1.11.
Fill cooling system as per procedure mentioned in note of 1.6 and check for leak.
1.12.
Close the engine access trap.
1.13.
The vehicle can return in service.
PAGE 5 OF 5
NQF772001 VERSION 3