FSB-831-002

SB-10054026-7808
Field Service Bulletin
Trucks
Mack Trucks, Inc.
Greensboro, NC USA
SB-10054026-7808
Date
Group
No.
Release
Page
10.2013
831
002
01
1(8)
Door Stop Replacement
CHU, CXU, GU, TD
FSB 831-002, Door Stop Replacement
(October 2013)
Information
Certain CHU, CXU, GU, and TD vehicles may experience issues with door stop bracket
failure due to door over extension. Replacing the door stop assembly with a newly designed
part will address this issue. To install the new assembly, follow the procedure outlined in this
document.
Note: Information is subject to change without notice.
Illustrations are used for reference only, and may differ slightly from the actual engine
version. However, key components addressed in this information are represented as
accurately as possible.
Required Parts
PV729-FSB 831-002
Quantity
Part Number
Description
2
20706309
Flange Nut
2
25106795
Six Point Socket Screw
1
25170970
Pin and Retaining Ring
1
82745973
Door Stop, Assembly
1
25165905
Door Stop Bracket
USA61998
Mack Trucks, Inc.
Field Service Bulletin
Date
10.2013
Group
No.
Release
831
002
01
Procedure
You must read and understand the precautions and guidelines in Service Information
Function Group 80, “General Safety Practices, Cab” before performing this procedure. If
you are not properly trained and certified in this procedure, ask your supervisor for training
before you perform it.
Note: This procedure applies to both doors.
1 Secure the vehicle for service by parking it on a flat level surface, applying the parking
brake, chocking the rear wheel, and placing the transmission in neutral.
2 Remove the kick panel.
3
CAUTION
In order to avoid damage to the door, do not allow the door to be opened too far.
Note: Discard the removed retaining ring and pin.
Remove the retaining ring and pin from the door stop bracket.
W8084430
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Mack Trucks, Inc.
Field Service Bulletin
Date
10.2013
Group
No.
Release
831
002
01
4 To prevent the door stop assembly from falling into the cab cavity, place a shop towel (1) or
other device below the component.
W8084976
Page
3(8)
Mack Trucks, Inc.
Field Service Bulletin
Date
10.2013
Group
No.
Release
831
002
01
5 Remove the door stop assembly.
Note: Discard the removed fasteners.
W8084431
Page
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Mack Trucks, Inc.
Field Service Bulletin
Date
10.2013
Group
No.
Release
831
002
01
6 Remove the door stop bracket.
Note: Discard the removed fasteners.
W8084432
Page
5(8)
Mack Trucks, Inc.
Field Service Bulletin
Date
10.2013
Group
No.
Release
831
002
01
7 Install the replacement door stop bracket. Torque the fasteners to 24 ± 4 Nm (18 ± 4 ft-lb).
Note: Use new fasteners.
W8084432
8 Install the replacement door stop assembly. Hand tighten only.
Note: When installing the door stop rod assembly use new fasteners.
Page
6(8)
Mack Trucks, Inc.
Field Service Bulletin
Date
10.2013
Group
No.
Release
831
002
01
9 Install the replacement pin through the door stop bracket and assembly arm. Install the
retaining ring.
W8084430
10 Torque the door stop assembly fasteners to 12± 2 Nm (9 ± 2 ft-lb).
11 Remove the shop towel.
12 Install the kick panel.
13 Lubricate the door stop.
14 Check the operation of the door.
Page
7(8)
Mack Trucks, Inc.
Field Service Bulletin
Date
10.2013
Group
No.
Release
831
002
01
Page
8(8)
Reimbursement
This repair may be eligible for reimbursement if a product failure was experienced within time and mileage limits of
the applicable Warranty coverage. Reimbursement is obtained via the normal claim handling process.
Claim Type (used only when uploading from the Dealer Bus. Sys.)
W
Labor Code
Primary Labor Code
6281A – 01 – 80 0.3 hrs
Causal Part
25165905
Mack Trucks, Inc. engages in a comprehensive program of testing and evaluating to provide
the best possible product. Mack Trucks, Inc. however, is not committed to, or liable for
updating existing vehicles.