NHTSA ID Number: 10126778
Manufacturer Communication Number: 14TS5
TSB/Document Date: 2018-01-05
Summary
14TS5 Replacing Damaged Aftertreatment Sensor Bosses
toy) DETROIT
DEMAND PERFORMANCE
No.: 14 TS-5
March 7, 2014
TO: Service Locations
FROM: Service Systems Development
SUBJECT: Replacing Damaged Aftertreatment Sensor Bosses
ISSUE
If not properly removed, the Aftertreatment Device (ATD) sensor bosses can be damaged when
replacing a failed sensor. Replacement of the ATD is no longer necessary if the sensor boss
threads are damaged during service. Detroit™ has released all ATD sensor bosses to service
along with the required Tungsten Inert Gas (TIG) welding rods to make repairs.
REQUIRED ACTION
The repair requires TIG welding and should be done by an experienced welding technician.
Use the tables and illustrations below to identify the correct sensor boss, hole saw and arbor
needed to make the repair. The required TIG welding rod part numbers are also provided in
Table 1. Either of the two welding rod part numbers are acceptable for this repair and can be
ordered.
__¥ | Part Number
23539604
Pressure Sensor Boss. —— 1
Temperature Sensor Boss M12 1 23539605
Temperature Sensor Boss M14 1 23539606
Temperature Sensor Boss M16 1 23539607
1
3
Nox Sensor Boss M20 23539608
36 Inch Arcos™ 409 TIG Welding Rod 23539448
36 Inch Arcos™ 410 TIG Welding Rod 3 23539450
Table 1 -Sensor Boss and Weld Rod Part Numbers
14 TS-5 2 , 3/7/14
To remove the sensor boss, refer to Table 2 to identify the correct size hole saw diameter and
part number.
"Carbide Tip. Hole Saw | - Granger Part
. ‘Sensor Boss a “Spe © Nanber:
Pressure Sensor Boss 4 3/16 (30mm) 33530656 2CDD5
Temperature Sensor Boss 45/16 (24mm) 23539654 2CDD3
Temperature Sensor Boss 4-4/46 (27mm) 23539655 2CDD4
Temperature Sensor Boss 45/16 (24mm) 23530654 2CDD3
NOx Sensor Boss M20 1-3/8 (35mm) 73530668 4XG46
Table 2 — Hole Saw Diameter and Part Numbers
Use Table 3 to select the correct arbor/pilot drill for the hole saw selected.
“Carbide: Tip!
1 3/16 30mm
15/16 (24mm 23539657 PN-4X120
1-1/16 (27mm
1-3/8 (35mm 23539659 PN-4X125
Table 3 — Arbor Part Numbers
Temperature Sensor Boss M14
Hole Saw 1-1/16 (27mm)
7d \ AS
Pressure Sensor Boss
,
Hole Saw 1-3/16 (30mm)
Pressure Sensor Boss
at —. Hole Saw 1-3/16 (30mm)
Temperature Sensor Boss M12
a Hole Saw 15/16 (24mm)
NOx Sensor Bass M20
La Hole Saw 1-3/8 (35mm)
fe:
© ©
e fo
Temperature Sensor Boss M16
Hole Saw 15/16 (24mm)
NOx Sensor Boss M20
= o}), Hole Saw 1-3/8 (35mm)
3S = co | Re
a
14
Temperature Sensor Boss M14 | (ap) @! Temperature Sensor Boss M
nn -
Hole Saw 1-1/16 (27mm) Hole Saw 1-1/16 (27mm)
14 TS-5 2 3/7/14
Pressure Sensor Boss Temperature Sensor Boss M14. Pressure Sensor Boss
Hoie Saw 1-3/16 (30mm) _ Hole Saw 1-1/16 (27mm) Hole Saw 1-3/16 (30mm)
\
L_/
Temperature Sensor Boss M14
Hole Saw 1-1/46 (27mm) NOx Sensor Boss M20
Hole Saw 1-3/8 (35mm)
14 TS-5
NOx Sensor Boss M20
Hole Saw 1-3/8 (35mm)
Pressure Sensor Boss
Hole Saw 1-3/16 (3mm)
Temperature Sensor Boss M14
Hole Saw 1-1/16 (27mm).
Hole Saw 1-3/16 (30mm)
Temperature Sensor Boss M16 Sy
Hole Saw 15/16 (24mm)
CWsa Sy
ESS tf
Pressure Sensor Boss S Ss cS 7 “Sy
SS
Temperature Sensor Boss M14.
Hole Saw 1-4/16 (27mm)
KL
L Ly
S-—-
F228
ESS) x
ESA
{Phi PH,
LOE
CSA
IP
ME
x
REPAIR PROCEDURE
1.
NOx Sensor Boss M20
Hole Saw 1-3/8 (35mm)
Temperature Sensor Boss M12
“——~ Hole Saw 15/16 (24mm)
Temperature Sensor Boss M16
| Hote Saw 15/16 (24mm)
3/7/14
Remove the Aftertreatment Device (ATD). Refer to the appropriate removal procedure
in Power Service Literature.
Notice: Always verify the new boss threads on the sensor before welding.
If the boss is shielded, as in Figure 1 (below), the heat shielding will need to be removed
to gain access to the damaged boss for removal and installation. Figure 2 illustrates a
sensor boss not surrounded with a heat shield.
14 TS-5 2 3/7/14
gure 1 ‘Figure 2
3. Use a die grinder to remove the shielding around the damaged sensor boss. The
shielding should be removed as neatly as possible. It will need to be welded back in
place once the sensor boss is replaced. See Figure 3.
Figure 3
4. Use the sensor boss to pilot the hole saw. Start cutting the sensor boss weld; check the
depth of cut frequently to prevent the damaged sensor boss from falling inside the
Aftertreatment device. See Figure 4.
14 TS-5 2 3/7/14
Figure 4
Notice: If the boss falls inside the Aftertreatment Device, it must be removed
5. Clean off all metal shavings from around the sensor boss hole; avoid chips from entering
the Aftertreatment device. See Figure 5.
Figure 5
6. Verify the new sensor boss fits the sensor before welding in place. Tack weld the
sensor boss in place, then complete the weld around the boss. See Figure 6 for an
example of a newly welded sensor boss.
14 TS-5 3/7/14
7. lf asection of the heat shield was removed, tack weld the heat shield in place. See
Figure 7.
Figure 7
8. Once the heat shield is properly tack welded in place, complete the welding.
See Figure 8.
14 TS-5 2 3/7/14
Figure 8
CONTACT INFORMATION
Please contact the Detroit™ Customer Support Center at 800-445-1980 or email
[email protected] if you have any questions.
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TSB/Document ID: 14TS5
Replacement Service Bulletin Number:
MFR Communication Date: 2014-03-07
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: STRUCTURE:BODY
MFR Component System:
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