NHTSA ID Number: 10056581
Manufacturer Communication Number: FSB-511-007
TSB/Document Date: 2015-01-07
Summary
VOLVO
: TO RESOLVE CONDITION OF BRAKE SHOES, SHOWING SIGNS OF PROTRUSION OF BRAKE SHOE BEYOND BRAKE DRUM, BY INSTALLING NEW DUST SHIELDS, WIDE BRAKE DRUMS (178 MM) (7.0) AND BRAKE SHOES (152 MM) (6.0). MODEL 2011-2014 VAH, VHD, VN. *PE
Field Service Bulletin
Trucks
Volvo Trucks North America
Greensboro, NC USA
Date
8.2014
SB-10056581-3868
Group
No.
Release
511 007 01
Page
1(23)
Brake Drum, Replacement
Steer Axle
VN, VHD, VAH
FSB 511-007, Brake Drum, Replacement (Steer
Axle)
(August 2014)
Some VOLVO VN, VHD, and VAH trucks built between 08/29/2011 and 06/30/2014, equipped
with a VOLVO 14.6k steer axle, tapered hub, and 152 mm (6.0 in) wide Meritor brake shoes
can show signs of brake shoe protrusion beyond the brake drum. This condition is resolved
by installing new 152 mm (6.0 in) brake shoes, new dust shields, and new 178 mm (7.0 in)
wide brake drums (20536276).
W5092666
Required Parts (Brake Drum Replacement)
Item
Description
Part Number
Qty
1
Brake Drum, 178 mm (7.0 in) wide
20536276
2
2
Brake Shoe Kit, 152 mm (6.0 in), Meritor
TDAKSMA15014715QP
2
3
Brake Dust Shield, Left, Meritor
22375171
2
4
Brake Dust Shield, Right, Meritor
22375304
2
5
Gasket, Hub Cap
20353636
2
6
Seal, Hub
85103823
2
Service personnel: Please circulate, read and initial
Service
Manager
Warranty
Administrator
PV729-FSB511-007_V
Workshop
Foreman
Service Technicians
USA66254
Volvo Trucks North America
Field Service Bulletin
Date
8.2014
Group
No.
Release
511
007
01
Decommissioning the Truck for Repair
You must read and understand the precautions and guidelines in Service Information,
group 50, "General Safety Practices, Brakes" 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: Information is subject to change without notice. Illustrations are used for reference
only and can differ slightly from the actual vehicle being serviced. However, key
components addressed in this information are represented as accurately as possible.
1 Park the vehicle on a flat and level surface.
2 Apply the parking brake.
3 Place the transmission in neutral or park.
4 Install the wheel chocks.
W7086748
Page
2(23)
Volvo Trucks North America
Field Service Bulletin
Date
8.2014
Group
No.
Release
511
007
01
5 Disconnect the cable from the battery’s negative terminal.
W3086747
Brake Drum, Replacement, Meritor (1.9 hrs)
Note: The left side is shown for instructional purposes.
1 Lift the steer axle with a jack, place the truck on jack stands, and remove the jack.
2 Remove the wheel nuts.
W5092265
Page
3(23)
Volvo Trucks North America
Field Service Bulletin
Date
8.2014
Group
No.
Release
511
007
01
3 Remove the wheel.
W5092266
4 Remove the slack adjuster pawl.
Note: The Meritor slack adjuster is shown in this procedure for backing off the brakes.
However, this procedure is similar for other brands.
W5092669
Page
4(23)
Volvo Trucks North America
Field Service Bulletin
Date
8.2014
Group
No.
Release
511
007
01
5 Back off of the brake (slack adjuster).
W5092670
6 Remove the brake drum.
Note: Discard the brake drum.
W5092271
Page
5(23)
Volvo Trucks North America
Field Service Bulletin
Date
8.2014
Group
No.
Release
511
007
01
7 Remove the brake shoes, brake springs, and rollers.
W5092706
8 Remove the hub cap.
Note: Using a suitable drain pan, catch any excess oil from the hub cap.
W5092707
Page
6(23)
Volvo Trucks North America
Field Service Bulletin
Date
8.2014
Group
No.
Release
511
007
01
9 Remove the snap ring and hub nut.
10 Remove the hub.
W5092708
11 Remove the brake spider and dust shield from the steering knuckle.
Note: Disconnect the brake chamber hose.
W5092710
Page
7(23)
Volvo Trucks North America
Field Service Bulletin
Date
8.2014
Group
No.
Release
511
007
01
12 Remove the six fasteners securing the existing dust shields.
W5092682
13 Remove the dust shield sections and discard.
W5092683
Page
8(23)
Volvo Trucks North America
Field Service Bulletin
Date
8.2014
Group
No.
Release
511
007
01
14 Assemble the new dust shield and brake spider.
Note: See the table on page 1 for the correct dust shield part number.
W5092684
15 install the fasteners securing the new dust shield and brake spider.
16 Tighten the fasteners to 40 ± 5 Nm (29 ± 3 ft-lb).
W5092685
Page
9(23)
Volvo Trucks North America
Field Service Bulletin
Date
8.2014
Group
No.
Release
511
007
01
17 Install the brake spider assembly.
Note: Connect the brake chamber hose.
18 Tighten the fasteners to 230 ± 23 Nm (170 ± 17 ft-lb).
W5092709
19 Assemble the wheel bearings into the hub.
Note: Ensure wheel bearings and hub are lubricated with the proper lubricant before
installation.
20 Install the hub seal (part number 85103823) onto the hub.
W5093131
Page
10(23)
Volvo Trucks North America
Field Service Bulletin
Date
8.2014
Group
No.
Release
511
007
01
21 Install the hub assembly onto the spindle.
W5092711
22 Secure the hub assembly to the spindle.
Note: Refer to appendix A through D for Hub Nut Configurations and Installation
Procedures.
23 Check hub for proper end play.
Note: See appendix E for Measuring Hub End Play.
24 Install the hub cap and hub cap gasket (part number 20353636).
W5093118
Page
11(23)
Volvo Trucks North America
Field Service Bulletin
Date
8.2014
Group
No.
Release
511
007
01
25 Fill the front axle hub with required lubricant.
26 Install the replacement brake shoes, springs and rollers.
Note: The brake springs and rollers are included in the brake shoe kit.
W5092706
27 Install the replacement brake drum (178 mm (7.0 in) wide). See the table on page 1 for the
correct part number.
W5092276
Page
12(23)
Volvo Trucks North America
Field Service Bulletin
Date
8.2014
Group
No.
Release
511
007
01
28 If applicable, loosen the brake chamber clamp and re-position the clamp at a 45° angle or
until proper clearance of the wheel is obtained. See figure below.
Note: Do not rotate the brake chamber. Rotate the clamp only.
- Mixes well with conventional fluids
- Low-moisture formula provides excellent vapor lock...
- Ideal for hydraulic and disc brakes
- Provides an extra margin of safety in extreme braking...
- Mix of polyglycol ethers ensures hot brake-system operation...
- Excellent for ABS, disc and drum brake systems
- Delivers braking power when needed by avoiding a spongy...
- Both wet and dry boiling points exceed the minimum...
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TSB/Document ID: FSB-511-007
Replacement Service Bulletin Number:
MFR Communication Date: 2014-08-01
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: SERVICE BRAKES, AIR:DRUM:DRUM
MFR Component System:
MFR Component Subsystem:
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