OFFICIAL NHTSA RECALL
77E026000
Service Brakes, Hydraulic:foundation Components
Reported Nov 4, 1977 · MIDLAND
Summary
ON THE INVOLVED VEHICLES, THE "O" RING SEAL WHICH THE CHECK VALVE SEALS ON IN THE POWER PISTON OF THE HYDRAULIC CYLINDER MAY FAIL. THIS FAILURE CAN CAUSE LOSS OF BRAKE HOLDING CAPABILITY BUT WILL NOT AFFECT THE PERFORMANCE OF THE SERVICE BRAKES.
Consequence
Not supplied in the source record.
Remedy
DEALER WILL INSPECT AND WILL REPLACE THE EXISTING UNIT WITH A NEW ONE, WHEN AVAILABLE, OR REFUND THE PURCHASE PRICE.
Notes
VEHICLE CATEGORY: TRUCKS.SYSTEM: SERVICE BRAKES; HYDRAGUARD OPERATIONAL HOLDING BRAKE, MODEL C-4703.CONSEQUENCES OF DEFECT: CONTINUED USE OF THE OPERATIONAL HOLDING BRAKE COULDRESULT IN FAILURE OF THE UNIT, LOSS OF VEHICLE CONTROL, AND AN ACCIDENT.NOTE: OWNER IS WARNED TO DISCONTINUE USING THE HOLDING BRAKE.
This campaign page uses the representative official campaign record. Applicability-specific source variants appear on the linked vehicle pages. Recall counts refer to campaigns, not affected vehicles.
Vehicle entries in this campaign
This is model-level recall history. It does not confirm whether a particular VIN is affected or has received the repair. Check with NHTSA ↗