The defect
ON CERTAIN HEAVY DUTY TRUCKS BUILT WITH SISU FR2P-21, SISU FR2P-26, SISU FR3P-33, OR SISU FR3P-48 REAR AXLES, A COUNTER-BORE MACHINED IN BOTH ENDS OF THE WORM WHEEL OPENING OF THE SLACK ADJUSTER HOUSING REDUCES MATERIAL THICKNESS BETWEEN THE WORM WHEEL OPENING AND THE WORM SHAFT OPENING. UNDER NORMAL SERVICE A CRACK MAY DEVELOP IN THIS AREA RENDERING THE SLACK ADJUSTER INOPERABLE AND REDUCING BRAKE EFFECTIVENESS.
The risk
REDUCED VEHICLE BRAKING COULD LEAD TO A CRASH.
The remedy
DEALERS WILL INSPECT THE SLACK ADJUSTERS, AND REPLACE THE ADJUSTER IF FOUND DEFECTIVE. THE RECALL BEGAN ON JULY 31, 2008. OWNERS MAY CONTACT FREIGHTLINER AT 1-800-547-0712.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Western Star 4900 | 2005, 2006, 2007 |
| Western Star 6900 | 2005, 2006, 2007 |
Components: SERVICE BRAKES, AIR:SLACK ADJUSTERS
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Western Star 4900 | 2005 | 2 | 7 |
| Western Star 4900 | 2006 | 1 | 10 |
| Western Star 4900 | 2007 | 0 | 14 |
| Western Star 6900 | 2005 | 0 | 5 |
| Western Star 6900 | 2006 | 1 | 6 |
| Western Star 6900 | 2007 | 0 | 4 |
Other service brakes, air recalls in 2007
23 of the 587 recall campaigns reported to NHTSA in 2007 concerned the service brakes, air; FREIGHTLINER LLC filed 99 campaigns in all.
| 07V447000 24 Sept 2007 | INTERNATIONAL TRUCK & ENGINE CORPORATION |
| 07V406000 6 Sept 2007 | GREAT DANE LIMITED PARTNERSHIP |
| 07V392000 30 Aug 2007 | NEWELL COACH CORP. |
| 07V373000 22 Aug 2007 | GENERAL MOTORS CORP. |
| 07V361000 15 Aug 2007 | MACK TRUCKS, INC |
| 07V302000 16 Jul 2007 | FREIGHTLINER LLC |
| 07V258000 22 Jun 2007 | BLUE BIRD BODY COMPANY |
| 07V256000 13 Jun 2007 | KALMAR INDUSTRIES CORP |
NHTSA recalls (public domain) · all recalls of 2007