On certain trucks equipped with bendix SR-7 spring brake modulating valves, the internal rubber check valve may leak causing a delay in the application of the spring brakes to park the vehicle after the operator pulls the dash valve button.
Risk and remedy
Risk
This could delay or failure in applying the parking brakes which could result in a vehicle roll away, increasing the risk of a crash.
Remedy
Oshkosh IS working with bendix to repair these vehicles (please see 07e-037). bendix will install a check valve repair kit for the affected SR-7 spring brake modulating valve free of charge. the recall began on october 19, 2007. owners may contact bendix at 440-329-9000 and oshkosh at 1-920-235-9151.
TL* the contact owns a 2007 oshkosh s-series. The contact noticed that the frame was cracked on the vehicle. The contact was a certified technician however was unable to diagnose the failure. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was unknown.
Service bulletins
Technical service bulletins and other communications the manufacturer sent dealers about this vehicle. Ask a dealer for the full document by its number.
10244977This bulletin provides instruction for installing a hydraulic system charge pump filter.
10240400This bulletin provides information on updating hydraulic hose clamping below the cab to match current production. Engineering recommends changing out the front STAUFF clamp using the following procedure. The second STAUFF clamp can be changed out using this procedure if desired.
10198993This bulletin provides information for vehicle owners that have a Dana series 172 or 175 rear axle without a lubricant drain plug in the bottom of the axle housing.
10198992This bulletin provides instruction for replacing the mixer pump PTO shaft, mixer pump input yoke, and mixer pump input yoke bearing U-bolts to the current production configuration. The new PTO shaft is larger with greaseable crosses and requires a new mixer pump input yoke and replacing the input yoke bearing U-bolts with bearing straps.
10198991This bulletin provides instructions for bolting the water tank mounting feet to the water tank if the bonded feet become loose.
10198990This bulletin provides instruction for replacing the water pump impeller due to corrosion. Oshkosh has received reports of non-working water pumps due to the pump impeller becoming corroded and seized, causing the pump not to spin. A new impeller made of an improved alloy was developed to eliminate corrosion issues.
10194921This bulletin provides instruction for checking electrical connections at various critical locations. Loose electrical connections can cause false readings and lead to electrical system errors.
10194920This bulletin provides instruction on replacing the frame ground stud nut located at the rear of the vehicle on the inside right-hand frame rail. Engineering has changed the nut from a jam nut to a lock nut after receiving reports of the jam nut being loose when inspected.
Every Oshkosh S-Series model year
Bars are owner complaints, dots mark years with recalls. Select a year to open its report.