Список international harvester 3900fc 1993 дефектів безпеки в США

Причина

THE HYDRAULIC BRAKE SYSTEM ON THESE BUSES USES TWO HYDRAULIC PRESSURE SWITCHES TO OPERATE THE BRAKE LIGHTS AND THE BRAKE BOOSTER PUMP. THE BRAKE PRESSURE WARNING LIGHT CAN ACTIVATE WHEN ACTUAL SYSTEM FAILURE HAS NOT OCCURRED.

Наслідки

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Ремонт

DEALERS WILL REPLACE THE TWO HYDRAULIC PRESSURE SWITCHES WITH ONE MECHANICAL SWITCH THAT IS ACTIVATED BY BRAKE PEDAL STROKE.

Примітки

SYSTEM: BRAKES; POWER ASSIST; HYDRAULIC SYSTEM.VEHICLE DESCRIPTION: SCHOOL AND TRANSIT BUSES BUILT WITH HYDRAULIC BRAKES.NOTE: IF THE VEHICLE IS PRESENTED TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND THE REMEDY IS NOT PROVIDED FREE OF CHARGE WITHIN A REASONABLE TIME OR THE REMEDY DOES NOT CORRECT THE DEFECT, PLEASE CONTACT NAVISTAR AT 1-800-448-7825. ALSO, CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-800-424-9393.

Причина

THE PRESSURE RELIEF VALVE WAS OMITTED IN THE AIR TANK. THE AIR TANK IS THE RESERVOIR FOR THE AIR SUSPENSION AND IS NOT BRAKE RELATED. WITHOUT THE PRESSURE RELIEF VALVE, THERE IS NO BACK-UP SYSTEM TO LIMIT AIR PRESSURE IN THE AIR SUSPENSION SYSTEM.

Наслідки

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Ремонт

INSTALL A PRESSURE RELIEF VALVE IN THE AIR TANK.

Примітки

SYSTEM: SUSPENSION.VEHICLE DESCRIPTION: SCHOOL BUSES: MODELS 4700 AND 4900; HEAVY TRUCKS: MODELS3600, 3700, 3800, AND 3900FG; INCOMPLETE CHASSIS: MODEL 1652SC.

Причина

A GAP BETWEEN THE MASTER CYLINDER AND REMOTE BRAKE FLUID RESERVOIR ADAPTER, CAUSED BY AN OUT-OF-SPECIFICATION CONDITION OF THE ADAPTER, RESULTS IN BRAKE FLUID LOSS DURING BRAKE APPLICATION.

Наслідки

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Ремонт

REPLACE THE OUT-OF-SPECIFICATION ADAPTERS.

Примітки

SYSTEM: BRAKES; MASTER CYLINDER.EQUIPMENT DESCRIPTION: ALLIEDSIGNAL INC. BRAJE MASTER CYLINDERS SUPPLIED TOOEM'S OF SCHOOL BUS, MOTORHOME AND SHUTTLE BUS CHASSIS.NOTES: ALLIEDSIGNAL INC. INITIATED THIS CAMPAIGN.IF YOU HAVE PROBLEMS EXCHANGING THE FLUID RESERVOIR ADAPTERS YOU CAN OBTAINASSISTANCE BY FOLLOWING THE PROCEDURE DESCRIBED IN THE OWNER ASSISTANCE GUIDESECTION IN YOUR OWNER'S MANUAL. ALSO, CONTACT THE NATIONAL HIGHWAY TRAFFICSAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-800-424-9393.