NHTSA ID Number: 10119490
Manufacturer Communication Number: 16-039
TSB/Document Date: 2017-10-15
Summary
16-039 Detroit DT12 Transmission
Standard Repair Time Updates
Daimler Trucks North America LLC
For questions, comments, or to submit an
inquiry, go to:
DDCSN.com > Warranty > Warranty Applications
> Inquiries > Submit an Inquiry
WARRANTY DEPARTMENT
13400 Outer Drive West
Detroit, MI 48239-4001
Please distribute to:
Dealer Principal, Warranty Manager, Service Manager, Parts Manager, Sales Manager
Thomas Built Bus Dealers
Sales Terms (DTR)
Freightliner Dealers
Western Star Dealers
Direct Warranty Customers
Used Product (DTR)
Sterling Dealers
Export
Travel Centers of America/Petro:Lube
FCCC Dealers
DDC Distributors
IMPORTANT WARRANTY INFORMATION
REF 16-039
Effective
Release
01/01/2017
12/19/2016
SUBJECT
Detroit DT12 Transmission Standard Repair Time Updates
Overview
As a result of streamlined Power Service Literature (PSL) service methods and the associated time study
data, DTNA is creating many new as well as adjusting several existing Standard Repair Times (SRTs) for
Detroit DT12 transmissions. The new and updated labor times will be applied to claims filed for repair
orders opened on or after January 1, 2017.
Use PSL for the appropriate service method; refer to the tables that follow for more information:
DT12 transmission series/service models impacted by the new and updated SRTs – page 1
Images and summaries of the new SRTs – pages 1-2
Images and summaries of the updated SRTs – pages 2-4
Comparison of current hours with updated hours – pages 4-5
Affected
Service
Models
New
SRTs
The following Freightliner and Western Star service models will be impacted by the new and updated
SRTs:
Service Model
Transmission Series
F12
ALL
W05
ALL
The table below provides images and descriptions for the new SRTs created for DT12 transmissions.
Labor Code
Description
SPEEDOMETER TONE RING REMOVAL &
SRT 342-6320M
REPLACEMENT (R&R)
Summary: Replacing the transmission output shaft tone ring. Includes
disconnecting the driveline, yoke removal and installation (R&I), replacing the
output shaft tone ring, and re-installing the driveline.
Labor Code
Description
SRT 342-6315M
OUTPUT SHAFT SEAL R&R
Summary: Replacing the transmission output shaft seal. Includes
disconnecting the driveline, yoke R&I, replacing the output shaft seal, and reinstalling the driveline.
Labor Code
Description
SRT 180-6020C
CLUTCH POSITION SENSOR R&R
Summary: Includes removing all inhibiting components in order to R&I the
transmission, clutch actuator (CPCA) R&I, replacing the clutch actuator
position sensor, and performing a learn procedure.
IMPORTANT WARRANTY INFORMATION LETTER
Verify latest version online: Warranty Operation Letters are available at DDCSN.com > Literature > Service Letters/Bulletins > Warranty Operations
DISCLAIMER: The information contained in this letter supersedes and supplements any related policies and procedures in the Warranty Manual and/or
previously released letters. Failure to read or distribute this letter will not exempt addressees from compliance with the information contained herein.
Warranty Operation Letter
Copyright © Daimler Trucks North America LLC. All rights reserved.
REF # 16-039
1 of 5
Daimler Trucks North America LLC is a Daimler company.
Revised: 12/16/16
Daimler Trucks North America LLC
Labor Code
SRT 180-6020B
For questions, comments, or to submit an
inquiry, go to:
DDCSN.com > Warranty > Warranty Applications
> Inquiries > Submit an Inquiry
WARRANTY DEPARTMENT
13400 Outer Drive West
Detroit, MI 48239-4001
Description
CLUTCH ACTUATOR ASSEMBLY R&R
Summary: Includes removing all inhibiting components in order to R&I the
transmission, replacing the CPCA, and performing a learn procedure.
Labor Code
Description
SRT 342-6035B
INPUT SHAFT SEAL R&R
Summary: Includes removing all inhibiting components in order to R&I the
transmission, CPCA, and input shaft seal housing for replacing the input shaft
seal.
Labor Code
Description
SRT 342-6045B
COUNTERSHAFT BRAKE VALVE R&R
Summary: Includes removing all inhibiting components in order to R&I the
transmission, disconnecting the countershaft brake housing air line, and
replacing the countershaft brake valve.
Labor Code
Description
SRT 342-6045E
COUNTERSHAFT BRAKE HOUSING SEAL R&R
Summary: Includes removing all inhibiting components in order to R&I the
transmission, disconnecting the countershaft brake housing airline,
countershaft brake housing R&I, and replacing the countershaft brake housing
seal.
Labor Code
Description
SRT 342-6030Q
SPLIT PIN BUSHING INSTALLATION
Summary: Includes removing all inhibiting components in order to R&I the
transmission and shift controller to gain access to the split shift pin for
bushing installation.
Updated
SRTs
The table below provides images and descriptions for the revised DT12 transmission SRTs.
Labor Code
SRT 342-6010D
Description
TRANSMISSION R&R
Summary: Includes removing all inhibiting components in order to remove the
transmission, swap components to the replacement transmission, installation
of the replacement transmission, and performing a learn procedure.
Labor Code
SRT 342-6030N
Description
SHIFT CONTROLLER R&R
Summary: Includes removing all inhibiting components in order to R&I the
transmission to gain access to the shift controller for replacement and
performing a learn procedure.
Labor Code
SRT 342-6030P
Description
SHIFT ACTUATOR SEAL R&R
Summary: Includes removing all inhibiting components in order to R&I the
transmission, shift controller R&I, and replacing the shift actuator seal.
Labor Code
SRT 342-6040N
Description
Transmission Control Module (TCM) R&R
Summary: Includes removing battery cables and necessary connections to
allow TCM R&I and performing a learn procedure.
IMPORTANT WARRANTY INFORMATION LETTER
Verify latest version online: Warranty Operation Letters are available at DDCSN.com > Literature > Service Letters/Bulletins > Warranty Operations
DISCLAIMER: The information contained in this letter supersedes and supplements any related policies and procedures in the Warranty Manual and/or
previously released letters. Failure to read or distribute this letter will not exempt addressees from compliance with the information contained herein.
Warranty Operation Letter
Copyright © Daimler Trucks North America LLC. All rights reserved.
REF # 16-039
2 of 5
Daimler Trucks North America LLC is a Daimler company.
Revised: 12/16/16
Daimler Trucks North America LLC
Labor Code
SRT 342-6065N
For questions, comments, or to submit an
inquiry, go to:
DDCSN.com > Warranty > Warranty Applications
> Inquiries > Submit an Inquiry
WARRANTY DEPARTMENT
13400 Outer Drive West
Detroit, MI 48239-4001
Description
OIL TEMPERATURE SENSOR R&R
Summary: Includes removing battery cables and topping off lost transmission
oil during sensor R&R.
Labor Code
SRT 342-6065P
Description
COUNTERSHAFT SPEED SENSOR R&R
Summary: Includes removing battery cables and topping off lost transmission
oil during sensor R&R.
Labor Code
SRT 342-6065R
Description
RANGE POSITION SENSOR R&R
Summary: Includes removing battery cables, sensor R&R, and performing a
learn procedure.
Labor Code
SRT 342-6065S
Description
AIR PRESSURE SENSOR R&R
Summary: Includes removing battery cables, draining the air system, and
sensor R&R.
Labor Code
SRT 342-6270C
Description
RANGE CYLINDER PISTON SEAL R&R
Summary: Includes unhooking battery cables, range cylinder housing R&I, and
removing and installing the seal for the range cylinder piston.
Labor Code
Description
SRT 342-6270B
RANGE CYLINDER R&R
Summary: Includes removing battery cables, range cylinder housing R&I, and
performing a learn procedure.
Labor Code
Description
SRT 180-6012C
CLUTCH R&R
Summary: Includes removing all inhibiting components in order to R&I the
transmission, clutch replacement, pilot bearing R&R, and performing a learn
procedure.
Labor Code
Description
SRT 342-6320N
YOKE R&R
Summary: Replacing the transmission output shaft yoke. Includes
disconnecting the driveline, yoke R&R, and driveline re-installation.
Labor Code
Description
SRT 342-6045C
COUNTERSHAFT BRAKE PISTON SEALS R&R
Summary: Includes removing all inhibiting components in order to R&I the
transmission, disconnecting the countershaft brake housing air line,
countershaft brake housing R&I, and replacing the countershaft brake piston.
Labor Code
Description
SRT 342-6045D
COUNTERSHAFT BRAKE DISK SET R&R
Summary: Includes removing all inhibiting components in order to R&I the
transmission, disconnecting the countershaft brake housing air line,
countershaft brake housing R&I, and replacing the countershaft brake disk set.
IMPORTANT WARRANTY INFORMATION LETTER
Verify latest version online: Warranty Operation Letters are available at DDCSN.com > Literature > Service Letters/Bulletins > Warranty Operations
DISCLAIMER: The information contained in this letter supersedes and supplements any related policies and procedures in the Warranty Manual and/or
previously released letters. Failure to read or distribute this letter will not exempt addressees from compliance with the information contained herein.
Warranty Operation Letter
Copyright © Daimler Trucks North America LLC. All rights reserved.
REF # 16-039
3 of 5
Daimler Trucks North America LLC is a Daimler company.
Revised: 12/16/16
Daimler Trucks North America LLC
For questions, comments, or to submit an
inquiry, go to:
DDCSN.com > Warranty > Warranty Applications
> Inquiries > Submit an Inquiry
WARRANTY DEPARTMENT
13400 Outer Drive West
Detroit, MI 48239-4001
Labor Code
Description
SRT 342-6065T
MAINSHAFT SPEED SENSOR R&R
Summary: Includes removing all inhibiting components in order to R&I the
transmission, oil pump, and range housing to replace the main shaft speed
sensor.
Labor Code
SRT 342-6311B
Description
AIR PRESSURE FITTINGS R&R
Summary: Includes replacing the air harness fittings.
Labor Code
SRT 342-6310B
Description
AIR HARNESS R&R
Summary: Includes replacing the air harness/lines.
Labor Code
Description
SRT 342-6055A
WIRE HARNESS R&R
Summary: Replacing the transmission electrical harness. Includes R&I of
inhibiting fairings and splash shields, after treatment device (ATD) inlet pipe
and exhaust bracket, and replacing the transmission electrical harness.
SRT
Hour
Changes
The table below displays the current and updated times for the revised DT12 transmission SRTs.
TRANSMISSION R&R (SRT 342-6010D)
Service Model
Current Hours
Updated Hours
F12
7.7
6.8
W05
7.7
7.6
SHIFT CONTROLLER R&R (SRT 342-6030N)
Service Model
Current Hours
Updated Hours
F12
2.1
6.8
W05
2.1
7.7
SHIFT ACTUATOR SEAL R&R (SRT 342-6030P)
Service Model
Current Hours
Updated Hours
F12
2.1
6.9
W05
2.1
7.7
TCM R&R (SRT 342-6040N)
Service Model
Current Hours
Updated Hours
F12
0.9
1.0
W05
0.9
1.3
OIL TEMPERATURE SENSOR R&R (SRT 342-6065N)
Service Model
Current Hours
Updated Hours
F12
0.6
0.6 (no change)
W05
0.6
0.8
COUNTERSHAFT SPEED SENSOR R&R (SRT 342-6065P)
Service Model
Current Hours
Updated Hours
F12
0.8
0.7
W05
0.8
0.9
RANGE POSITION SENSOR R&R (SRT 342-6065R)
Service Model
Current Hours
Updated Hours
F12
0.5
0.6
W05
0.5
0.8
AIR PRESSURE SENSOR R&R (SRT 342-6065S)
Service Model
Current Hours
Updated Hours
F12
0.5
0.5 (no change)
W05
0.5
0.9
IMPORTANT WARRANTY INFORMATION LETTER
Verify latest version online: Warranty Operation Letters are available at DDCSN.com > Literature > Service Letters/Bulletins > Warranty Operations
DISCLAIMER: The information contained in this letter supersedes and supplements any related policies and procedures in the Warranty Manual and/or
previously released letters. Failure to read or distribute this letter will not exempt addressees from compliance with the information contained herein.
Warranty Operation Letter
Copyright © Daimler Trucks North America LLC. All rights reserved.
REF # 16-039
4 of 5
Daimler Trucks North America LLC is a Daimler company.
Revised: 12/16/16
Daimler Trucks North America LLC
For questions, comments, or to submit an
inquiry, go to:
DDCSN.com > Warranty > Warranty Applications
> Inquiries > Submit an Inquiry
WARRANTY DEPARTMENT
13400 Outer Drive West
Detroit, MI 48239-4001
RANGE CYLINDER PISTON SEAL R&R (SRT 342-6270C)
Service Model
Current Hours
Updated Hours
F12
0.5
0.7
W05
0.5
0.9
RANGE CYLINDER R&R (SRT 342-6270B)
Service Model
Current Hours
Updated Hours
F12
0.7
0.9
W05
0.7
1.0
CLUTCH R&R (SRT 180-6012C)
Service Model
Current Hours
Updated Hours
F12
8.2
7.2
W05
8.2
8.4
YOKE R&R (SRT 342-6320N)
Service Model
Current Hours
Updated Hours
F12
1.1
1.7
W05
1.1
1.7
COUNTERSHAFT BRAKE PISTON SEALS R&R (SRT 342-6045C)
Service Model
Current Hours
Updated Hours
F12
7.9
6.8
W05
7.9
7.7
COUNTERSHAFT BRAKE DISK SET R&R (SRT 342-6045D)
Service Model
Current Hours
Updated Hours
F12
7.9
6.8
W05
7.9
7.7
MAINSHAFT SPEED SENSOR R&R (SRT 342-6065T)
Service Model
Current Hours
Updated Hours
F12
9.0
7.8
W05
9.0
8.7
AIR PRESSURE FITTINGS R&R (SRT 342-6311B)
Service Model
Current Hours
Updated Hours
F12
1.0
0.8
W05
1.0
0.7
AIR HARNESS R&R (SRT 342-6310B)
Service Model
Current Hours
Updated Hours
F12
0.9
0.8
W05
0.9
1.1
WIRE HARNESS R&R (SRT 342-6055A)
Service Model
Current Hours
Updated Hours
F12
1.1
3.0
W05
1.1
1.9
The new and updated SRTs are available in the applicable Labor Time Guide as well as at www.ddcsn.com
> Warranty > Warranty Applications > Warranty System > Labor > SRTs > SRT Search. Any questions or
feedback regarding SRTs may be addressed through the Warranty Support Center > Detroit Inquiries.
IMPORTANT WARRANTY INFORMATION LETTER
Verify latest version online: Warranty Operation Letters are available at DDCSN.com > Literature > Service Letters/Bulletins > Warranty Operations
DISCLAIMER: The information contained in this letter supersedes and supplements any related policies and procedures in the Warranty Manual and/or
previously released letters. Failure to read or distribute this letter will not exempt addressees from compliance with the information contained herein.
Warranty Operation Letter
Copyright © Daimler Trucks North America LLC. All rights reserved.
REF # 16-039
5 of 5
Daimler Trucks North America LLC is a Daimler company.
Revised: 12/16/16
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