NHTSA ID Number: 10081530
Manufacturer Communication Number: ITS6273
TSB/Document Date: 2016-10-05
Summary
TECHNICAL INSTRUCTION - REPLACE COOLANT SURGE TANK - SPECIFICALLY EQUIPPED VEHILCES
25. Connect the newly terminated low coolant harness from Steps 21 thru 24 to the newly installed surge tank low
coolant derate sensor from Step 14d. See Figure 13 for correct rework wiring schematic.
Existing Low Coolant Sensor Circuits
Reworked Low Coolant Sensor Circuits
Figure 13: Surge Tank Derate Low Coolant Sensor Circuit.
26. Re-connect the surge tank low coolant level sensor electrical connections removed in Step 9. Reference Figure 5.
27. Re-install the surge tank drop tube, connections and clamps removed in Step 12.
28. Re-install the HVAC coolant lines, clamps and connectors that run underneath the surge tank removed in Step
11. Reference Figure 6.
29. As per Step 19 re-install the surge tank coolant lines removed in Step10. Reference Figure 5.
30. Close side surge tank access door.
31. Turn the main battery disconnect switch to the “ON” position.
NOTE: It will be necessary to perform a cooling system deaeration procedure prior to starting the engine
if any other maintenance activity was performed on the heating system that could have introduced
a significant amount of air into the cooling system. Refer to Section 2.3.4. “Fill & Deaeration” in
the New Flyer
Service Manual.
32. Start the engine and inspect for leaks. Top up fluid as required.
33. Close the engine compartment door.
34. Close the interior engine access door.
35. Close the radiator access door.
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ITS: 6273
Page 9 of 11
LABOUR ESTIMATE
Operation
1
Replace Coolant Surge Tank
Men
Hours
1
3.0
Labour Time
M X HR
3.0
PARTS REQUIRED
Description
Qty.
per
Coach
2
Units
Item
Part Number
1
216632
Barb-Hose ¼ x 3/8 ID
2
376677
Hose-EH225-06 Silicone
1.08
FT
3
131322
Clamp-Breeze .44 x .78
2
EA
4
14S00008
Screw-Machine #10 x ½”
1
EA
5
092585
Clamp-P 0.625
1
EA
6
10W04000
Washer-Flat ¼”
2
EA
7
40N04000
Locknut-Hex ¼”
1
EA
8
10B04012
Bolt-Hex ¼”unc x 3/4
1
EA
9
615411
Assembly-Surge Tank
1
EA
10
8110442
Loctite 567 - Thread Sealant
.01
EA
11
102963
Gasket-Surge Tank
1
EA
12
409349
Gauge-4.53” viewable
1
EA
13
470238
Cap-Radiator 16 PSIG Lev-R-Vent
1
EA
14
610634
2
EA
15
336110
Fitting-Coupler 5/16”
1
EA
16
498573
Assy-Brkt Sight Glass Clamp
1
EA
17
5952466
Bushing-1/2 FPT x ¾” MPT
1
EA
18
5955052
Elbow-45°
1
EA
19
5956167
Shrader Valve
1
EA
20
5959829
Bushing-.25 MPT x .13 FPT
1
EA
21
G127951
Plug-Brass ¼” MPT
1
EA
22
G127952
Plug-3/4” MPT
1
EA
23
473532
Union-1/2” NPT Brass
3
EA
24
166949
Kit-2 Circuit Tower, Deutsch
2
EA
25
5958112
Tyrap-7” Black
8
EA
26
198432
4
EA
27
498928
Adapter-1/2” FPT x -6 JIC SST
3
EA
Notes
EA
_________________________________________________________________________________________________________________
ITS: 6273
Page 10 of 11
28
G426816
Screw-Shoulder Cap .25 x .75
4
EA
29
8112019
Permatex Gasket
0.01
EA
30
617218
Neck-Pressure Cap AL
1
EA
31
50W04000BK
Washer-Flat ¼” BLK
4
EA
_________________________________________________________________________________________________________________
ITS: 6273
Page 11 of 11
- Contains Alugard Plus for compatibility with all ethylene...
- Fights corrosion, scaling and rust while protecting all...
- High-quality additives protect against leaks and won’t...
- Pre-mixed yellow formula is ready-to-use in a 50/50 ratio...
- Contains 30 – 50 ppm of denatonium benzoate as a bittering...
- 5 year/150, 000 mile . Silicate-free, long-life, phosphate...
- Formulated to replace the OEM fluid in Asian make vehicles...
- The long life formula provides protection for all cooling...
- Meets the following OEM and industry specifications...
- Contains 30 – 50 ppm of denatonium benzoate as a bittering...
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TSB/Document ID: ITS6273
Replacement Service Bulletin Number:
MFR Communication Date: 2016-06-30
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE
MFR Component System:
MFR Component Subsystem:
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