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NHTSA ID Number: 10244760

Manufacturer Communication Number: SB60-180

TSB/Document Date: 2023-11-03


Summary

Revised Service Bulletin for Cab Isolator for Trucks Domiciled in Mexico


60-180

Cab Isolator for Trucks Domiciled in Mexico
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional
Century Class Conventional

Argosy
Cargo
Columbia
122SD and Coronado
Business Class M2

FreightlinereBay logo
Service Bulletin

Cascadia
108SD/114SD
> New Cascadia
eCascadia
M2 Plus

General Information
New Cascadia vehicles domiciled in Mexico can create premature wear of the cab isolators due to a
combination of heat and road conditions. A new set of cab isolators have been released for vocational
applications to address this issue. If the vehicle has failed one or both isolators under these conditions, follow
this service bulletin to replace the cab isolators.

Parts Required
For parts list, see Table 1.

Part Number
18-73837-000
23-14067-065
18-71231-025

Parts and Specialized Tools Table
Part Description
CAB MOUNT ISOLATOR
BOLT-HEX, ZNAL, BK, M16X1.5X65
SHIM-CAB MOUNT, 6.35MM

Quantity
2
4
2

Table 1, Parts and Specialized Tools Table

Inspection
1. Park the vehicle on a level surface, shut down the engine, and set the parking brake. Chock the tires.
2. Disconnect the batteries.
3. Remove the front wheel splash shield. For instructions, see Section 88.01, Subject 100 of the New
Cascadia Workshop Manual. Figure 1 shows the location of cab-installed splash shields.

3

2
1
06/01/2023

f603113

1. Left-Hand Side Splash Shield
2. Right-Hand Side Splash Shield
3. Front Wall
Fig. 1, Cab-Installed Splash Shield

FreightlinereBay logo Service Bulletin, 10/5/2023

Page 1

60-180

Cab Isolator for Trucks Domiciled in Mexico

FreightlinereBay logo
Service Bulletin

FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional
Century Class Conventional

Argosy
Cargo
Columbia
122SD and Coronado
Business Class M2

Cascadia
108SD/114SD
> New Cascadia
eCascadia
M2 Plus

WARNING
Do not work under the cab when it is supported only by a jack. Use safety stands or other suitable
means to firmly support the cab. Jacks can slip, causing the cab to fall, which could result in serious
injury or death.
4. Using a jack, lift up the front of the cab just enough to loosen the isolator bolt. Support the cab with jack
stands.

IMPORTANT: Make sure to replace both left-hand and right-hand side isolators together.
5. Remove the isolator bolt, nut, and washers. See Fig. 2.

1

5

2

4

3

01/06/2017

f602622

Front left-hand side cab mount installation shown. The
right-hand side cab mount installation is similar to the
left-hand side.
1. Cab
2. Cab Mount Isolator
3. Frame-Mounted Bracket
4. Frame Rail
5. Isolator Bolt
Fig. 2, Cab Mount Isolator Removal

6. Note the position of the isolator against the hash marks on top of the bracket. See Fig. 3.

Page 2

FreightlinereBay logo Service Bulletin, 10/5/2023

60-180

Cab Isolator for Trucks Domiciled in Mexico
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional
Century Class Conventional

Argosy
Cargo
Columbia
122SD and Coronado
Business Class M2

FreightlinereBay logo
Service Bulletin

Cascadia
108SD/114SD
> New Cascadia
eCascadia
M2 Plus

1
2

A
3

4

01/06/2017

f602623

A. The hash marks should be used to center the cab
after the new isolator is installed.
1. Cab
2. Cab Mount Isolator
3. Frame-Mounted Bracket
4. Frame Rail
Fig. 3, Positioning the Cab Mount Isolator

7. Remove and discard the bolts, nuts, and washers that attach the cab-mount isolator to the frame-mounted
bracket. Remove and discard the isolator. See Fig. 4.

FreightlinereBay logo Service Bulletin, 10/5/2023

Page 3

60-180

Cab Isolator for Trucks Domiciled in Mexico

FreightlinereBay logo
Service Bulletin

FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional
Century Class Conventional

Argosy
Cargo
Columbia
122SD and Coronado
Business Class M2

Cascadia
108SD/114SD
> New Cascadia
eCascadia
M2 Plus

1
2

3

6

5

4

01/06/2017

1.
2.
3.
4.
5.
6.

f602624

Bolt
Washer
Shim (if so equipped)
Frame-Mounted Bracket
Nut
Washer
Fig. 4, Cab Mount Isolator Installation

NOTE: If a shim is already installed between the cab-mount isolator and the frame-mounted bracket,
retain it in place on the bracket.

Installation
1. Place a new cab mount isolator on the frame-mounted bracket, between the ears of the bracket on the cab
underbody. Make sure that the stamped word ‘OUTSIDE’ is facing outboard, and that the position of the
isolator against the hash marks on top of the bracket matches that of the old isolator. See Fig. 3.

Page 4

FreightlinereBay logo Service Bulletin, 10/5/2023

60-180

Cab Isolator for Trucks Domiciled in Mexico
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional
Century Class Conventional

Argosy
Cargo
Columbia
122SD and Coronado
Business Class M2

FreightlinereBay logo
Service Bulletin

Cascadia
108SD/114SD
> New Cascadia
eCascadia
M2 Plus

2. Attach the cab mount isolator to the bracket on the cab underbody with the isolator bolt, washers, and nut,
inserting the bolt from the inboard side. See Fig. 5. This procedure applies to both the left-hand and righthand side cab installations.

1
2
4

3

06/01/2023

1. New Cab Isolator
2. Bolt

f603114

3. New Shim
4. Existing Shim

Fig. 5, Front Cab Isolator Assembly Installation with
Shims

3. Carefully lower the cab.
4. Tighten the new isolator bolt, washers, and nuts 128 lbf·ft (174 N·m).
5. Tighten the cab mount isolator nut 128 lbf·ft (174 N·m).
6. Install the front wheel splash shield. For instructions, see Section 88.01, Subject 100 of the New Cascadia
Workshop Manual.
7. Close the hood.

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.

FreightlinereBay logo Service Bulletin, 10/5/2023

Page 5

60-180

Cab Isolator for Trucks Domiciled in Mexico

FreightlinereBay logo
Service Bulletin

FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional
Century Class Conventional

Argosy
Cargo
Columbia
122SD and Coronado
Business Class M2

Cascadia
108SD/114SD
> New Cascadia
eCascadia
M2 Plus

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

Component
Code

18-68767-000/001

014-004-035

OWL VMRS Codes and Labor Allowance
Cause Correction
SRT Code
Description
Time: Hours
Code
Code
ISOLATOR ASSY, CAB MOUNT,
14
3
650-5000A FRNT, BOTH SIDES, R/R
0.8
(SB60-180)

Table 2, OWL VMRS Codes and Labor Allowance

Page 6

FreightlinereBay logo Service Bulletin, 10/5/2023

1

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TSB/Document ID: SB60-180

Replacement Service Bulletin Number:

MFR Communication Date: 2023-10-05

MFR Internal Campaign ID/Software Version:

Communication Type: Service Bulletin/Repair Instructions

NHTSA Components: STRUCTURE

MFR Component System:

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