Daimler Truck

North America LLC Field Service Campaign

SF706 A-B
Creation Date: February 2026
Revision Date: April 2026

Cascadia Axle Conversion: Adaptive Tandem (AT) 6x4 to New Final Drive (NFD)

Models Affected
Make Model Model Year Start | Model Year End| Production Start Date | Production End Date
Freightliner Cascadia 2021 2024 02/24/2020 02/02/2023

REVISION: The work instructions have been revised. Please note that some parts in the kits may not be needed to
complete the repair, specifically shims and fifth wheel angles.

General Information

On behalf of the entity listed below, Daimler Truck North America LLC (DTNA), is initiating Field Service Campaign SF706
to modify the affected vehicles.

= Freightliner Trucks Division

PROBLEM: Due to discontinued production, certain vehicles with an Adaptive Tandem (AT) 6x4 axle configuration will
no longer be supported with service documentation and service parts.

SOLUTION: The vehicles will be retrofitted, replacing the AT 6x4 axle configuration with New Final Drive (NFD) axles
and supporting parts.

There are approximately 63 vehicles involved.

Additional Repairs

Dealers must complete all outstanding Recall and Field Service campaigns prior to sale or delivery of a vehicle. Dealer will
be liable for any progressive damage that results from its failure to complete campaigns before sale or delivery of a vehicle.

Owners may be liable for any progressive damage that results from failure to complete campaigns within a reasonable time
after receiving notification.

Please contact Warranty Campaigns for consideration of additional charges prior to performing the repair.

Work Instructions

Please refer to attached work instructions. Prior to performing the campaign, check the vehicle for a completion sticker
(Form WAR261).

Replacement Parts

NOTE: Do not order parts (other than the sensor guard). DTNA will coordinate the shipment of axles and kits to each repair
location after confirming with the dealer and/or their DSM the specific locations where customers will be and the timing of
their visits.

If our records show your dealership has ordered any vehicle(s) involved in campaign SF706, a list of the customers and
vehicle identification numbers will be available on the DTNA Portal via OWL.

Page 1
Daimler Truck

North America LLC Field Service Campaign

SF706 A-B
Creation Date: February 2026
Revision Date: April 2026

Important — After Repair is Complete:
Attach a red completion sticker (WAR261) to the base label (WAR259).

If the vehicle does not have a base label, clean a spot on the appropriate location and attach a base label prior to attaching
the completion sticker.

Failure to install a completion sticker may result in a chargeback of the campaign claim.

Table 1 — Replacement Parts

Groups | Part/Kit Numbers Part/Kit Descriptions Qty Note
Various Axles & Part Kits Provided by DTNA | Various Do Not Order (DTNA will arrange shipment.)
A-B 06-96696-000 GUARD-AXLE TEMP SNSR 1 Order this part (not included in kit)
WAR261 Blank Completion Sticker 1

Removed Axles and Other Parts

e Axles must be returned to a Detroit Reman Consolidation Center (Reman West).
e Donot destroy the box/pallet as it may be used for return shipping.

e Return Address:
Detroit Diesel Remanufacturing

135 South Lodestone Way
Tooele, UT 84074

e For all other parts: U.S. and Canadian Dealers, use the part disposition to determine how to manage removed parts
(return, scrap, etc.). Dispositions are available at the date of the repair.

Claim Reimbursement — Labor Allowance

IMPORTANT: OWL must be viewed prior to performing the Field Service campaign to ensure the vehicle is involved and
the campaign has not been previously completed. Also check for a completion sticker prior to beginning work.

You will be reimbursed for your parts, labor, and handling by submitting your claim through the warranty system within 30
days of completing this campaign.

e In OWL, use the ‘Retrieve’ function and select the appropriate procedure. This will auto-populate the PFP,
component code, cause, corrective action, and SRT code(s).

Table 2 — Claim Reimbursement

Claim Type Field Service Campaign
Campaign SF706 A-B

VMRS Component Code F99-999-005

Cause Code Ai — Campaign
Primary Failed Part 25-SF706-000

Page 2
Daimler Truck

North America LLC Field Service Campaign

SF706 A-B
Creation Date: February 2026
Revision Date: April 2026

Table 3 — Labor Allowance

Group Procedure Time Allowed (hours) SRT Code Corrective Action
A Replace Rear Axles (DCDL) 45.3 996-F248A 12-Repair Recall/Campaign
B Replace Rear Axles (Non-DCDL) 42.3 996-F248B 12-Repair Recall/Campaign

Claims for Credit
e NOTE: Include new axle serial #’s on the claim so that Vehicle Info can be updated.

¢ Claim type is Field Service Campaign.
e Inthe Campaign field, enter the campaign number and group (SF706 A or B).
e Inthe Primary Failed Part field, enter 25-SF706-000.

e Inthe Parts section, no entry is required as kits are provided by DTNA. However, if additional parts were needed, such
as the temperature sensor guard, they may be added to this section.

e Inthe Labor section, enter the appropriate SRT from the Labor Allowance Table. Administrative time will auto-populate
if applicable using SRT 939-6010A for 0.3 hours.

e Inthe Other Charges section, enter sublet repair information if a tire shop is involved.
e The VMRS Component Code is F99-999-005 and the Cause Code is A1 - Campaign.

e U.S. and Canada — Reimbursement for Prior Repairs. When a customer asks about reimbursement, please do the
following:

o Accept the documentation of the previous repair.

o Make a brief check of the customer’s paperwork to see if the repair may be eligible for reimbursement. (See the
‘Copy of Owner Letter’ section of this bulletin for reimbursement guidelines.)

o Submit an OWL Field Service Pre-Approval Request for a decision.

o Include the approved amount on your OWL claim in the Other Charges section.
o Attach the documentation to the pre-approval request.

o If approved, submit a ‘based on claim’ for the pre-approval.

o The Dealer is required to reimburse the customer the appropriate amount.

IMPORTANT: OWL must be viewed prior to performing the field service campaign to ensure the vehicle is involved and
the campaign has not been previously completed. Also, check for a completion sticker prior to beginning work.

U.S. and Canadian dealers, contact the Warranty Campaigns Department via an inquiry at DTNAPortal.com/PNA, if you
have any questions or need additional information. Export distributors, submit a PNA inquiry or contact your International
Service Manager.

U.S. and Canadian Dealers: To return excess kit inventory related to this campaign, U.S. dealers must submit a Parts
Authorization Return (PAR) to the Memphis PDC. Canadian dealers must submit a PAR to their facing PDC. All kits must
be in resalable condition. PAR requests must include the original purchase invoice number. Export Distributors: Excess
inventory is not returnable.

Page 3
Daimler Truck

North America LLC Field Service Campaign

SF706 A-B
Creation Date: February 2026
Revision Date: April 2026

The letter notifying U.S. and Canadian vehicle owners is included for your reference.

Please note that the National Traffic and Motor Vehicle Safety Act, as amended (Title 49, United States Code, Chapter
301), requires the owner’s vehicle(s) be corrected within a reasonable time after parts are available to you. The Act states
that failure to repair a vehicle within 60 days after tender for repair shall be prima facie evidence of an unreasonable time.
However, circumstances of a particular situation may reduce the 60-day period. Failure to repair a vehicle within a
reasonable time can result in either the obligation to (a) replace the vehicle with an identical or reasonably equivalent vehicle,
without charge, or (b) refund the purchase price in full, less a reasonable allowance for depreciation. The Act further prohibits
dealers from selling a vehicle unless all outstanding recalls are performed. Any lessor is required to send a copy of the recall
notification to the lessee within 10 days. Any subsequent stage manufacturer is required to forward this notice to its
distributors and retail outlets within five working days.

Page 4
Daimler Truck

North America LLC Field Service Campaign

SF706 A-B
Creation Date: February 2026
Revision Date: April 2026

Copy of Notice to Owners

Cascadia Axle Conversion: Adaptive Tandem (AT) 6x4 to New Final Drive (NFD)

Daimler Truck North America LLC (DTNA), on behalf of its Freightliner Trucks Division is initiating Field Service Campaign
SF706 to modify specific model years 2021-2024 Freightliner Cascadia vehicles, manufactured February 24, 2020, to
February 2, 2023.

Due to discontinued production, certain vehicles with an Adaptive Tandem (AT) 6x4 axle configuration will no longer be
supported with service documentation and service parts.

The vehicles will be retrofitted, replacing the AT 6x4 axle configuration with New Final Drive (NFD) axles and supporting
parts.

Please contact an authorized DTNA dealer to arrange to have the campaign performed and to ensure that parts are
available. The campaign will take approximately fifty hours and will be performed free of charge. To locate an authorized
dealer go to https://northamerica.daimlertruck.com/brands/support. At the bottom of the page click on the appropriate brand
(shown as an icon), and at the top of each brand’s page is an option to ‘Find a Dealer’.

This Field Service Campaign will terminate on February 28, 2027. Please make sure the campaign is completed prior to
this date. Work completed after this date will be done at the customer’s expense.

As stated in the terms of your express limited warranty, Daimler Truck North America LLC will not pay for any damage
caused by failure to properly maintain your vehicle. Daimler Truck North America LLC considers the work necessary under
this campaign to be proper maintenance and will, therefore, not pay for any damage to your vehicle caused by your failure
to have the repairs that are the subject of this campaign performed in a reasonable time.

If you have any questions, contact the Warranty Campaigns Department at (800) 547-0712, from 7 a.m. to 4 p.m. Pacific
Time, Monday through Friday, e-mail address: [email protected], or the Customer Assistance Center
at (800) 385-4357.

WARRANTY CAMPAIGNS DEPARTMENT
Enclosure

Page 5
Daimler Truck

North America LLC Field Service Campaign

SF706 A-B
Creation Date: February 2026
Revision Date: April 2026

Work Instructions

Cascadia Axle Conversion: Adaptive Tandem (AT) 6x4 to New Final Drive (NFD)

Models Affected
Make Model Model Year Start | Model Year End | Production Start Date | Production End Date
Freightliner Cascadia 2021 2024 02/24/2020 02/02/2023

REVISION: The work instructions have been revised. Please note that some parts in the kits may not be needed to
complete the repair, specifically shims and fifth wheel angles.

Tandem Axle (AT) 6x4 to New Final Drive (NFD) Axle Conversion

NOTE: The individual performing the work should be supplied with a copy of these work instructions. For any questions,
please submit a ticket to the Campaigns team via the Prism Network Assist (PNA) located on the DTNA Portal.

NOTE: These work instructions are intended for dealers to perform the work. If the modification is passed to a customer,
body builder, etc., it is up to the dealer that filed the request to provide support to the third party.

NOTE: Refer to the Workshop Manual, Group 00 General Information, for Torque Specifications.

Disclaimer of Warranty and Limitation of Liability:

Daimler Truck North America makes no warranty of any kind, express or implied, including any implied warranty of
merchantability or fitness for a particular purpose in connection with the parts and services provided, beyond the warranty
for materials and workmanship of the parts sold. Except as otherwise required by law, your acceptance of this parts list
constitutes agreement to the provisions above and to agreement that Daimler Truck North America is not liable for any
damages beyond the warranty for materials and workmanship of the parts sold.

Preparing the Chassis for Removal of the Axle

1. Check the base label (Form WAR259) for a completion sticker for SF706 (Form WAR261), indicating this work has
been done. The base label is usually located on the passenger-side door, about 12 in (30 cm) below the door latch.
If a completion sticker is present, no work is needed. If a completion sticker is not present, proceed to the next step.

2. Record the Vehicle Identification Number (VIN).
3. Identify the new matching sales axles that will go into the vehicle.

4. For warranty purposes, record the new axle serial numbers and the last six sales axle numbers. Additionally, take
pictures of the axle tags. Provide the new axle serial numbers on the claim.

Page 6
Daimler Truck

North America LLC Field Service Campaign

SF706 A-B
Creation Date: February 2026
Revision Date: April 2026

Removal of the Rear Drive Axle

1. Park the vehicle on a level surface, shut down the engine, and set the parking brake. Chock the front tires.
2. Disconnect the batteries.

IMPORTANT: All drive tires must be discarded and replaced with new tires.

Remove the rear 1/4 fender aero fairings.

If equipped, remove all rear axle wheel flow below covers (hub wheel covers).

If equipped with TPMS, dismount the original rear tires and remove the TPMS sensors.

Remove the rear axle tires.

Place the chassis/axles on the jack stands for safety.

Disconnect the rear axle Antilock Braking System (ABS) sensor connections.

oO one an FF Yw

Disconnect the rear axle temperature sensor wiring and cut the tie straps that secure the wiring to the axles.
10. Deflate the air system allowing the suspension air bags to flatten.

11. Disconnect the inter-axle driveline from the rear drive axle only and let the end fall loose.

Page 7
Daimler Truck

North America LLC Field Service Campaign

SF706 A-B
Creation Date: February 2026
Revision Date: April 2026

12. Raise the chassis and roll the dolly under the rear drive axle, then lower the chassis to rest the axle on the dolly.
See Fig. 1.

#330499

08/12/2025

Fig. 1, Resting the Axle on the Dolly

Page 8
Daimler Truck

North America LLC Field Service Campaign

SF706 A-B
Creation Date: February 2026
Revision Date: April 2026

13. Disconnect the air hoses from the brake chambers. See Fig. 2.

02/02/2026 330511

1. Air Hose 2. Brake Chamber

Fig. 2, Air Hoses Connected to the Brake Chambers

14. Remove only the upper mounting bolts from the rear drive axle shock and save the bolts for installation.

15. Remove only the air bag bell nuts and washers from the rear drive axle. Save the fasteners for installation.

Page 9
Daimler Truck . . .
North America LLC Field Service Campaign

SF706 A-B
Creation Date: February 2026
Revision Date: April 2026

16. Remove the rear drive axle lateral rod. See Fig. 3.

330501

08/12/2025

Fig. 3, Lateral Rod Bolts Connecting the Rear Drive Axle Tower to the Frame

Page 10
Daimler Truck
North America LLC

SF706 A-B
Creation Date:
Revision Date:

February 2026
April 2026

Field Service Campaign

17. Remove the bolts from the spring eye for the rear drive axle only.

18. Lift the chassis from the axle and roll the axle out from under the vehicle. Chain the front drive axle to the frame so the
suspension doesn't hang down and damage the air bag while lifting the chassis.

19. Leave the axle on the dolly to facilitate stripping the axle. See Fig. 4.

. SY
ere
= |
——
=a va, =

ee

08/12/2025

= ae

330502

Page 11

Fig. 4, Axle Removed from the Chassis

Daimler Truck

North America LLC Field Service Campaign

SF706 A-B
Creation Date: February 2026
Revision Date: April 2026

Uncrating Both New Axles / Craning to the Jack Stand Rack
1. Cut the strapping/wood blocks to remove the new axles from the shipping crate. See Fig. 5.

08/12/2025 330503

Fig. 5, New Axle on a Shipping Crate

Page 12
Daimler Truck

North America LLC Field Service Campaign

SF706 A-B
Creation Date: February 2026
Revision Date: April 2026

2. Use the overhead hoist crane with chains to remove the axle from the shipping crate.

3. Crane the new rear drive axle and place the axle on the jack stand rack. See Fig. 6.

7

es

sy

| SS
fick et

#
— a CU
REET yy
=

08/12/2025 330504

Fig. 6, Craning the New Rear Drive Axle

Stripping the Rear Drive Axle

1. | Remove the shocks from the springs. Save the shocks and fasteners for installation.

2. Remove the springs. Save the springs along with the axle top and bottom spring pad for installation.
3 Discard the existing axle seat, U-bolts, nuts, and washers.

4. Remove the axle temperature sensor and save the sensor for installation.

5

Remove the axle vent tube and save for installation.

Page 13
Daimler Truck

North America LLC Field Service Campaign

SF706 A-B
Creation Date: February 2026
Revision Date: April 2026

Building Up the Rear Drive Axle on the Jack Stand Rack

NOTE: Refer to the Workshop Manual, Group 00 General Information, for Torque Specifications.

1. Remove two axle seats from the kit.

Remove four U-bolts, eight washers, and nuts from the kit.

Install the U-bolts for the top axle stop pads on the axle.

Place the new axle seat on top of the spring in proper position. The seat has directional indicators.
Install the spring with the bottom pad, with the tail facing back.

Install new U-bolts, nuts, and washers to hold the spring in place.

Verify the top axle pad is in the proper location.