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NHTSA Campaign 07V571000

SERVICE BRAKES, AIR:SLACK ADJUSTERS

Issued by FREIGHTLINER LLC · Reported Dec 18, 2007 · 31 vehicles affected

What's wrong

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.

Consequence

REDUCED VEHICLE BRAKING COULD LEAD TO A CRASH.

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.

Vehicles affected by this recall

Make Model Year Units
WESTERN STAR 4900 2005 31
WESTERN STAR 4900 2006 31
WESTERN STAR 4900 2007 31
WESTERN STAR 6900 2005 31
WESTERN STAR 6900 2006 31
WESTERN STAR 6900 2007 31

Source: NHTSA Campaign 07V571000 on nhtsa.gov. To check the current repair status for a specific vehicle, use our free VIN decoder.