OSHKOSH ( 09V152000 )

Vehicle Make / Model:		Model Year(s):
OSHKOSH / H-SERIES		2008
OSHKOSH / H-TRACTOR		2008
OSHKOSH / P-SERIES		2008
OSHKOSH / S-SERIES		2008
OSHKOSH / STA-SERIES		2008
OSHKOSH / T-SERIES		2008
OSHKOSH / TX-SERIES		2008
Manufacturer: OSHKOSH TRUCK CORPORATION		Mfr’s Report Date: APR 28, 2009
NHTSA CAMPAIGN ID Number: 09V152000		EQ09003 NHTSA Action Number: EQ09003

Component: SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE

Potential Number of Units Affected: 302

Summary: OSHKOSH IS RECALLING 302 year 2008 T-SERIES, TX, STA, H, P, S AND H-TRACTOR, AIRPORT RESCUE, FIREFIGHTING, COMMERCIAL, CONCRETE MIXER AND MILITARY TRUCKS AND HIGHWAY VEHICLES EQUIPPED WITH HALDEX AIR BRAKE SYSTEM CONTROL VALVE. THE RUBBER DIAPHRAGM USED INSIDE THE QUICK RELEASE VALVE (QRV) MAY DELAMINATE AND MAY CAUSE LEAKAGE LEVELS PAST AND/OR THROUGH THE DIAPHRAGM IN EXCESS OF PERMISSIBLE SPECIFICATIONS, OR COULD CAUSE A RESTRICTION IN THE AIR FLOW, THEREBY EFFECTING PRESSURE DELIVERY TO THE SERVICE BRAKES AND NOT ALLOW THE SERVICE BRAKES TO RELEASE.

Consequence: MALFUNCTION OF THE AIR BRAKE SYSTEM COULD RESULT IN A VEHICLE CRASH.

Remedy: OSHKOSH IS WORKING WITH HALDEX AND WILL INSPECT AND REPLACE ALL EFFECTED QRVS FREE OF CHARGE. PLEASE SEE 09E-004. THE RECALL IS EXPECTED TO BEGIN DURING MAY 2009. OWNERS MAY CONTACT HALDEX AT 620-365-6911 OR OSHKOSH AT 920-235-9151.

Notes: OWNERS MAY ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION’S VEHICLE SAFETY HOTLINE AT 1-888-327-4236 (TTY 1-800-424-9153), OR GO TO HTTP://WWW.SAFERCAR.GOV .