60-156

60-156
FE13 Roof Fairing Brace Cracking, Cascadia Daycab
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional
Century Class Conventional
Argosy COE
Cargo
Columbia
Freightliner
Service Bulletin
122SD and Coronado
Business Class M2
> Cascadia
108SD/114SD
Description of Revisions: This bulletin replaces the version dated
January 2015. Both the upper and lower ends of the braces are
now attached using 5/16-inch flatwashers.
General Information
The single diagonal rear brace on a Cascadia day cab FE13 roof fairing (sales data code 784-084) may crack
or break under certain operating conditions. A more durable double-diagonal brace design has been in production since July 14, 2014. If the single diagonal brace (Fig. 1) is cracked or broken, convert to the doublediagonal brace design using the procedure in this bulletin.
NOTICE
Do not operate the vehicle without a roof fairing brace, or with a broken brace. Doing so could result in
the roof skin cracking.
4
A
A
1
2
2
3
12/05/2014
A. The brace may crack here.
1. Diagonal Brace
2. Cab Back-Wall Bracket
f602535
3. Cab Back Wall
4. Fairing
Fig. 1, FE13 Roof Fairing with Single Diagonal Brace
Procedure
1. Park the vehicle on a level surface, shut down the engine, and set the parking brake. Chock the tires.
Freightliner Service Bulletin, February 2015
Page 1
60-156
FE13 Roof Fairing Brace Cracking, Cascadia Daycab
Freightliner
Service Bulletin
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
2. Remove the fasteners that attach the diagonal rear brace to the cab and fairing. Remove the brace.
3. Locate and drill a 3/8-inch (10-mm) diameter hole in each cab back-wall bracket. See Fig. 2.
C
A
B
2
1
12/05/2014
f602537
NOTE: LH bracket shown.
A. Measurement: 5/16 inch (7 mm)
B. Measurement: 7-5/16 inch (186 mm)
C. Drill a 3/8-inch (10-mm) diameter hole.
1. Cab Back Wall
2. Cab Back-Wall Bracket
Fig. 2, Drilling Location on Cab Back-Wall Bracket
4. Using an M8 machine screw and a 5/16-inch flatwasher in the newly drilled hole, loosely install an
L-channel brace on the forward-facing side of the cab back-wall bracket, with the brace web on the inboard
side. Use the end-most hole on the brace. Repeat on the other side of the vehicle.
5. Attach the top end of one of the braces to the top flange of the fairing, then using the brace as a template,
mark and drill two 3/8-inch (10-mm) holes in the flange. Repeat for the other brace. See Fig. 3.
6. Using M8 machine screws and 5/16-inch flatwashers, attach the upper ends of the braces to the fairing
flange.
7. Tighten the screws on the lower ends of the braces.
Parts
Parts are available through the PDCs. See Table 1.
Part Number
A22-72329-000
23-12716-725
23-10900-032
Parts Required
Description
SUPT–BRACE, FAIRING, DAYCAB
SCREW–MACH, M8 X 1.25, 25 MM, SST
WASHER–FLAT, SST, 5/16
Qty.
2
6
6
Table 1, Parts Required
Page 2
Freightliner Service Bulletin, February 2015
60-156
FE13 Roof Fairing Brace Cracking, Cascadia Daycab
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional
Century Class Conventional
Argosy COE
Cargo
Columbia
Freightliner
Service Bulletin
122SD and Coronado
Business Class M2
> Cascadia
108SD/114SD
6
5
5
5
5
4
4
4
4
3
2
3
2
1
12/05/2014
f602536
1. Cab Back Wall
2. Cab Back-Wall Bracket
3. M8 Machine Screw and 5/16-inch Flatwasher
4. Diagonal Brace
5. M8 Machine Screw and 5/16-inch Flatwasher
6. Fairing Top Flange
Fig. 3, Double-Diagonal Brace Installation
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.
Primary Failed Part
22-72005-000
OWL VMRS Codes and Labor Allowance
Component
Cause Code SRT Code
Description
Code
STRUT, ROOF FAIRING, REPLACE
004-001-027
12
784-5000A
WITH TWO BRACES
Time: Hours
2.0
Table 2, OWL VMRS Codes and Labor Allowance
Freightliner Service Bulletin, February 2015
Page 3