NHTSA ID Number: 10146298
Manufacturer Communication Number: sb31038
TSB/Document Date: 2018-10-29
Summary
The right-hand cab panel on New Cascadia can come into contact with the right-hand chassis-side fairing when making a left turn. This contact can result in an audible popping noise, paint-damage to the rocker panel and damage to the back-side of the chassis-side fairing.
Rocker Panel Contacts the Chassis-Side Fairing
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional
Century Class Conventional
Argosy COE
Cargo
Columbia
122SD and Coronado
Business Class M2
Cascadia
108SD/114SD
> New Cascadia
31-038
Freightliner
Service Bulletin
General Information
The right-hand cab rocker panel on New Cascadia vehicles can come into contact with the right-hand chassisside fairing when making a left turn. This contact can result in an audible popping noise, paint damage to the
rocker panel and damage to the back-side of the chassis-side fairing. See Fig. 1. Beginning February 5, 2018,
production added spacers between the track rod bracket and the rail. This will shift the aft of the cab to the left
by 6 mm to provide clearance.
For vehicles built through February 4, 2018, follow the steps below to add shims and provide clearance. For
vehicles built from February 5, 2018 with shims installed but still experiencing clearance issues, adjusting the
fairing is all that is needed for clearance.
1. Rocker Panel
2. Chassis-Side Fairing
Fig. 1, Location of the Rocker Panel and Chassis-Side
Fairing
Frame-Mounted Chassis Fairing
1. To determine if this problem exists, check for an indication of contact on the inside rib on the chassis-side
fairing. See Fig. 2.
Freightliner Service Bulletin, 05/02/2018
Page 1
31-038
Freightliner
Service Bulletin
Rocker Panel Contacts the Chassis-Side Fairing
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional
Century Class Conventional
Argosy COE
Cargo
Columbia
122SD and Coronado
Business Class M2
Cascadia
108SD/114SD
> New Cascadia
1. Inside Rib
Fig. 2, Checking if the Inside Rib Contacts the Chassis-Side Fairing (fuel tank mounting shown)
2. If there is contact on the inside rib on the chassis-side fairing and the vehicle was built before February 5,
2018, install a shim between the frame rail and the lateral control rod frame bracket to resolve this
interference. Tighten the hex bolts 128 lbf·ft (174 N·m). See Fig. 3.
Page 2
Freightliner Service Bulletin, 05/02/2018
Rocker Panel Contacts the Chassis-Side Fairing
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional
Century Class Conventional
Argosy COE
Cargo
Columbia
122SD and Coronado
Business Class M2
Cascadia
108SD/114SD
> New Cascadia
31-038
Freightliner
Service Bulletin
A. The long end of the shim should be at the top.
Fig. 3, Installing the Shim
3. Ensure that the frame fairing mounting bracket is adjusted down and outboard to clear the rocker panel.
Spacers on the fairing are not needed; adjusting alone should fix the issue. See Fig. 4.
Fuel Tank Strap-Mounted Chassis Fairing
1. To determine if this problem exists, check for an indication of contact on the inside rib on the chassis-side
fairing. See Fig. 2.
2. If there is contact on the inside rib on the chassis-side fairing and the vehicle was built before February 5,
2018, install a shim between the frame rail and the lateral control rod frame bracket to resolve this
interference. Tighten the hex bolts 128 lbf·ft (174 N·m). See Fig. 3.
3. Ensure that the fuel tank fairing mounting bracket is adjusted as far down and outboard as possible to clear
the rocker panel. See Fig. 5.
Freightliner Service Bulletin, 05/02/2018
Page 3
31-038
Freightliner
Service Bulletin
1. Top Mounting Bolt
Rocker Panel Contacts the Chassis-Side Fairing
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional
Century Class Conventional
Argosy COE
Cargo
Columbia
122SD and Coronado
Business Class M2
Cascadia
108SD/114SD
> New Cascadia
2. Bottom Mounting Bolt
Fig. 4, Adjusting Frame Mounted Fairings
A. Vertical Adjustment
B. Horizontal Adjustment
Fig. 5, Adjusting Fuel Tank Mounted Fairings
4. Install a spacer, part number 66-09312-000, between the fuel tank fairing bracket and the chassis fairing
rail. If needed, a total of two spacers can be installed. See Fig. 6.
Page 4
Freightliner Service Bulletin, 05/02/2018
Rocker Panel Contacts the Chassis-Side Fairing
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional
Century Class Conventional
Argosy COE
Cargo
Columbia
122SD and Coronado
Business Class M2
Cascadia
108SD/114SD
> New Cascadia
31-038
Freightliner
Service Bulletin
A. The spacer(s) go behind the fuel tank fairing bracket.
1. Chassis Fairing Rail
Fig. 6, Spacer Installation
Parts
Replacement Parts
Description
Shim, STL, 214X42X6.35
Hex-Bolt, PC10.9, PO, M16X1.5X65
Hex-Nut, LKG, ZNAL, BK, M16X1.5
Spacer (fuel tank mounting)
Part Number
A 680 475 03 84
23-14283-065
23-14072-116
66-09312-000
Quantity
1
2
2
2
Table 1, Replacement Parts
Warranty
This procedure is warrantable only if the described condition exists and the repair is performed within the
applicable base or extended coverage warranty period. If a failure is not found, this procedure is considered
preventive and warranty does not apply.
Normal warranty applies. See Table 2 for OWL VMRS codes and labor allowance information. Enter this service
bulletin number in the Service Bulletin # field.
Freightliner Service Bulletin, 05/02/2018
Page 5
31-038
Freightliner
Service Bulletin
Primary Failed Part
A22-73738-016
A22-73738-016
Rocker Panel Contacts the Chassis-Side Fairing
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional
Century Class Conventional
Argosy COE
Cargo
Columbia
122SD and Coronado
Business Class M2
Cascadia
108SD/114SD
> New Cascadia
OWL VMRS Codes and Labor Allowance
Component
Cause Code SRT Code
Description
Code
FAIRING, CHASSIS, ADJUST AND
004-005-001
22
782-5016A
INSTALL CAB LATERAL ROD SHIM
004-005-001
22
782-5016B FAIRING, CHASSIS, ADJUST
Time: Hours
0.8
0.4
Table 2, OWL VMRS Codes and Labor Allowance
Page 6
Freightliner Service Bulletin, 05/02/2018
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TSB/Document ID: sb31038
Replacement Service Bulletin Number:
MFR Communication Date: 2018-05-01
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: STRUCTURE:BODY
MFR Component System:
MFR Component Subsystem:
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