1 ea

ARM-STEERING
ARM-STEERING

TDA3133W8967
TDA3133E8403

1 ea
1 ea
1 ea

ARM-STRG

TDA3133S8417F

STRG ARM LH

TDA3133E8403F

1 ea

ARM-STEERING,LH
ARM-STEERING LH

TDA3133E7779
TDA3133B8582

1 ea
1 ea

ARM-STEERING,RH

TDA3133C8609

1 ea

ARM-STEERING
ARM-STEERING
ARM-STEERING,LH

TDA3133E8611
TDA3133G8743
TDA3133L8618

1 ea
1 ea
1 ea

STEERING ARM
ARM STEERING ASSEMBLY, RIGHT
HAND

TDA3133U8679

1 ea

TDA3133V8680

1 ea

ARM STEERING LH
ARM-STEERING
ARM STEERING LH

TDA3133E8455F
TDA3133G8457F
TDA3133D8454F

1 ea
1 ea
1 ea

ARM-STEERING,FRONT AXLE,RH
ARM-STEERING,FRONT AXLE,LH

TDA3133E9287
TDA3133F9288

1 ea
1 ea

ARM-STEERING,LH
ARM-STEERING,LH

TDA3133D9286
TDA3133C9285

1 ea
1 ea

ARM-STEERING, LH
ARM-STEERING, LH
ARM-STEERING, LH

TDA3133F9470
TDA3133H9472
TDA3133Q9403

1 ea
1 ea
1 ea

PIN-COTTER
NUT-STEERING ARM
PIN-COTTER,1 3/4 X 1/8

TDA K2618
TDA 1227Y1715
23-00800-407

1 ea
1 ea
2 ea

Removed Parts
U.S. and Canadian Dealers, please follow Warranty Failed Parts Tracking shipping instructions for the
disposition of all removed parts. Export distributors, please destroy removed parts unless otherwise advised.

Labor Allowance
Table 2 - Labor Allowance
Campaign
Number
SF660A
SF660A

Procedure
Inspect drag link and torque
Inspect drag link and torque; replace drag link
and steering arm

Time Allowed
(hours)

SRT Code

Corrective Action

0.4

996-F134A

06-Inspect

2.1

996-F134B

12-Repair Recall/Campaign

IMPORTANT: When the campaign has been completed, locate the base completion label in the appropriate location on the vehicle, and attach the gray completion sticker provided in the field service kit (Form WAR261). If
the vehicle does not have a base completion label, clean a spot on the appropriate location of the vehicle and
first attach the base completion label (Form WAR259). If a field service kit is not required or there is no completion sticker in the kit, write the campaign number on a blank sticker and attach it to the base completion label.

Page 4

Daimler Truck
North America LLC

Field Service Campaign

December 2022
SF660A

Claims for Credit
You will be reimbursed for your parts, labor, and handling (landed cost for Export Distributors) by submitting
your claim through the Warranty system within 30 days of completing this campaign. Please reference the
following information in OWL:
• Claim type is Field Service Campaign.
• In the Campaign field, enter the campaign number and appropriate condition code (SF660-A).
• In the Primary Failed Part field, enter 25-SF660-000.
• In the Parts section, enter the appropriate kit or part number(s) as shown in the Replacement Parts Table.
• In the Labor section, enter the appropriate SRT from the Labor Allowance Table. Administrative time will
be included automatically as SRT 939-6010A for 0.3 hours.
• The VMRS Component Code is F99-999-005 and the Cause Code is A1 - Campaign.
• This Field Service Campaign will terminate on December 31, 2023. Dealers will be notified of any
changes to the termination date via Important Campaign Information Letter posted on DTNAConnect.com.
IMPORTANT: OWL must be viewed prior to beginning work to ensure the vehicle is involved and the campaign
has not previously been completed. Also, check for a completion sticker before beginning work.
All claims must be submitted within 30 days of the repair and within 30 days of the termination date of the
campaign. U.S. and Canadian Dealers: All excess inventory to be returned to the PDC following the conclusion
of the campaign must be returned in resaleable condition to the Memphis PDC within 90 days from the
termination date. Please submit a PAR to request return to the Memphis PDC. (Canadian dealers should return
the kits to their facing PDC.) Export Distributors: Excess inventory may be returned as noted for U.S. and
Canadian dealers. Export locations will pay freight to return kits. Export Distributors: Excess inventory is not
returnable.
For questions, U.S. and Canadian dealers, contact the Warranty Campaigns Department via Web inquiry at
DTNAConnect.com/WSC, or the Customer Assistance Center at (800) 385-4357, if you have any questions or
need additional information. Export distributors submit a Web inquiry or contact your International Service
Manager.

Page 5

Daimler Truck
North America LLC

Field Service Campaign

December 2022
SF660A

Copy of Notice to Owners
Subject: Drag Link Tapered Joint
Daimler Trucks North America LLC (DTNA), on behalf of its Freightliner Trucks Division, is initiating Field Service
Campaign SF660 to modify specific model years 2019-2021 Freightliner 108SD, 114SD, 122SD, Business Class
M2, Cascadia, Columbia, and Coronado vehicles manufactured April 2, 2018, through June 25, 2020.
On certain vehicles, the drag link tapered joint, at the steering arm, may not have been tightened to manufacturer
specification and may come loose. A loose drag link tapered joint at the steering arm may result in separation of
the joint leading to a complete loss of steering, which could lead to a crash.
The drag link will be inspected and torqued to specification. Repairs will be performed by Daimler Trucks North
America authorized service facilities.
Please contact an authorized DTNA dealer to arrange to have the campaign performed and to ensure that parts
are available at the dealership. The campaign will take approximately two hours and will be performed at no
charge to you. To locate an authorized dealer, search online at NorthAmerica.DaimlerTruck.com/contact-us/.
Scroll down to “Locate a Dealer,” and select the appropriate brand.
This Field Service Campaign will terminate on December 31, 2023. 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, DTNA will not pay for any damage caused by failure to
properly maintain your vehicle. DTNA 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.
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, if you have any questions or need additional information.

WARRANTY CAMPAIGNS DEPARTMENT
Enclosure

Page 6

Daimler Truck
North America LLC

Field Service Campaign

December 2022
SF660A

Work Instructions
Subject: Drag Link Tapered Joint
Models Affected: Specific model years 2019-2021 Freightliner
108SD, 114SD,122SD, Business Class M2, Cascadia, Columbia, and
Coronado vehicles manufactured April 2, 2018, through June 25, 2020.

Castle Nut Inspection and Tightening
NOTE: This procedure will require two people—one in the cab to turn the steering wheel, and one to observe
the drag link steering arm joint as the steering wheel is turned.
1.

Check the base label (Form WAR259) for a completion sticker for SF660 (Form WAR261) indicating this
work has been done. The base label is usually located on the passenger door about 12 inches (30 cm)
below the door latch. If a sticker is present, no work is needed. If there is no sticker, proceed with the next
step.

2.

Park the vehicle on a level surface, shut down the engine, and set the parking brake. Chock the rear tires.

3.

Open the hood.

4.

Observe the behavior of the drag link steering arm joint. See Fig. 1.
4

3
2
A

5
1

10/21/2021

f462463

A. Check the relative movement in the drag link to steering arm joint.
1. Drag Link
3. Cotter Pin
2. Steering Arm
4. Castle Nut
Fig. 1, Drag Link to Steering Arm Joint

Page 7

5. Ball Stud

Daimler Truck
North America LLC

Field Service Campaign

December 2022
SF660A

4.1

With the engine running at idle, and the parking brake still engaged, have an assistant turn the steering wheel in small increments from left-to-right and back several times.

WARNING
Maintain a safe distance from the front tire and the moving steering linkage while observing.
Failure to maintain a safe distance could result in severe personal injury or death.
4.2
5.

While the steering wheel is being turned, check the behavior of the drag link to steering arm joint.

Are any of the following conditions observed?
• The castle nut appears to be loose.
• The cotter pin is not in place.
• There is relative movement in the drag link to steering arm joint when the steering wheel is moved
back and forth.

YES → Go to the Drag Link and Steering Arm Replacement procedure.
NO → Go to the next step.

Page 8

Daimler Truck
North America LLC

Field Service Campaign

December 2022
SF660A

IMPORTANT: Do not back off the castle nut to align its slots to the cotter pin hole on the ball stud. Further turn
the castle nut a maximum of one-sixth of a turn to align it.
6.

Remove and discard the cotter pin from the castle nut at the drag link to steering arm joint, then tighten
the castle nut to the torque value shown in Table 1. See Fig. 2.
Size

Castle Nut Torque Values
Torque: lbf·ft (N·m)

3/4–16
7/8–14

117–143 (159–194)
207–253 (281–343)

Table 1, Castle Nut Torque Values

4

3

6

2

3

4

5

2

A
1

04/08/2021

A. Drag link cotter pin location.
1. Drag Link
2. Castle Nut

f462449

3. Cotter Pin
4. Ball Stud

5. Pitman Arm
6. Steering Arm

Fig. 2, Drag Link Cotter Pin Location

7.

Install and lock a new cotter pin on the drag link to steering arm joint.

8.

Clean a spot on the base label (Form WAR259), write the campaign number, SF660, on a blank red
completion sticker (Form WAR260), and attach it to the base label, indicating this work has been completed.

Page 9

Daimler Truck
North America LLC

Field Service Campaign

December 2022
SF660A

Drag Link and Steering Arm Replacement
1.

At both ends of the drag link, remove the cotter pins, then remove the castle nuts. See Fig. 2. Discard the
cotter pins and castle nuts.

2.

Using a ball stud removal tool, remove the ball studs from the pitman arm and the steering arm.

3.

Remove the drag link from the vehicle, and discard it.

4.

For Detroit® steering arm:
4.1

Remove the capscrews that attach the steering arm to the knuckle, then remove the steering arm
from the vehicle. Discard the steering arm and capscrews.

4.2

Position a new steering arm on the knuckle. Apply Loctite® 277 on the threads of the new steering
arm capscrews, then install the capscews.
• If M20 capscrews are used, tighten them 425 lbf·ft (576 N·m).
• If M24 capscrews are used, tighten them 664 lbf·ft (900 N·m).

5.

For Meritor steering arm:
5.1

For non-drive front axles, remove the cotter pin and castle nut that attach the steering arm to the
knuckle, then remove the steering arm from the vehicle. Discard the steering arm, castle nut and cotter pin.

5.2

Press the key into the slot in the arm, then install the new steering arm on the knuckle.

IMPORTANT: Do not back off the castle nut to align its slots to the cotter pin hole on the ball stud. Further
turn the castle nut a maximum of one-sixth of a turn to align it.

6.

5.3

Install a new castle nut TDA 1227Y1715. Tighten the nut 775 to 1450 lbf·ft (1051 to 1966 N·m). Install
and lock a new cotter pin TDA K2618 on the castle nut.

5.4

For front drive axles, see Meritor MX-120/MX-120EVO Service Manual.

5.5

Remove the capscrews that attach the steering arm to the knuckle, then remove the steering arm
from the vehicle. Discard the steering arm and capscrews.

5.6

Position a new steering arm on the knuckle, then install the new capscews. Tighten the capscrews
500 to 650 lbf·ft (678 to 881 N·m).

For Hendrickson steering arm:
6.1

Remove the capscrews that attach the steering arm to the knuckle, then remove the steering arm
from the vehicle. Discard the steering arm and capscrews.

6.2

Position a new steering arm on the knuckle, then install the new capscews HDR 60236-001. Tighten
the capscrews 176 to 200 lbf·ft (239 to 271 N·m).

7.

Insert the steering arm ball stud of the new drag link assembly through the bottom of the steering arm,
then install a new castle nut, and hand-tighten it.

8.

Turn the steering wheel as needed to align the hole in the lower end of the pitman arm with the forward
ball stud. Insert the ball stud in the pitman arm from the inboard side. Install a new castle nut, and handtighten it.

IMPORTANT: Do not back off the castle nut to align its slots to the cotter pin hole on the ball stud. Further turn
the castle nut a maximum of one-sixth of a turn to align it.
9.

Tighten the castle nuts to the torque value shown in Table 1.

10.

Install and lock a new cotter pin on the castle nuts at both ends of the drag link. See Fig. 2.

11.

Clean a spot on the base label (Form WAR259), write the campaign number, SF660, on a blank red
completion sticker (Form WAR260), and attach it to the base label, indicating this work has been completed.

Page 10