Vehicle report

2023 OSHKOSH S-SERIES

Service bulletins

18 bulletins

Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.

FDM-IB-016

Other

This bulletin provides instructions for identifying and locating all driveline grease zerk fittings. Lubrication of the driveline is important for proper vehicle operation.

FDM-SVC-045

Other

This bulletin provides instructions to install the latest battery disconnect switch on S-Series 2.0 vehicles in serial number range 788727 - 814085.

FDM-SVC-044

Other

This bulletin provides instructions to install a check valve in the chute return hydraulic circuit to prevent fluid back flow through the chute manifold if a chute up or down hose fails, and install a shut-off valve on the fan manifold to turn off flow of hydraulic oil to the chutes and water pump.

FDM-IB-013

Other

This bulletin provides instruction for replacing the existing chute drive washer with a hardened steel washer. This change prolongs the service life of the drive sprocket and chute operation.

FDM-IB-011

Service Bulletin/Repair Instructions

This bulletin provides information on verifying powertrain harness grounds are correctly installed, and covers the installation of an optional engine ground cable.

FDM-TSB-006

Service Bulletin/Repair Instructions

This bulletin provides instructions for removing an inoperative vehicle TCU. Oshkosh Corporation initiated an over-the-air update security certification on TCUs for a select population of Oshkosh® S-Series™ 2.0 Front Discharge Mixers. The software update process was unsuccessful and has caused select TCUs to become inoperative. Affected TCUs must be returned to Oshkosh Corporation for reflashing in a controlled environment.

FDM-IB-010

Service Bulletin/Repair Instructions

This bulletin provides information on installing metal door linkage rod clips in place of original plastic clips.

FDM-TSB-005

Service Bulletin/Repair Instructions

This bulletin provides instructions for installing a longer hydraulic hose between the auxiliary pump and the hydraulic manifold load sense port, and a straight fitting to the hydraulic manifold load sense port to reduce pressure spikes. The longer hose provides additional hydraulic fluid volume between the auxiliary pump and hydraulic manifold and acts as an accumulator for the load sense auxiliary pump function.

FDM-IB-009

Service Bulletin/Repair Instructions

This bulletin provides guidance on a new torque procedure for securing the fuel tank to prevent tank rotation.

FDM-SVC-027

Service Bulletin/Repair Instructions

This bulletin provides instruction for replacing a Micronet display with an updated Grayhill overhead display and T27 TCU.

FDM-SVC-042

Service Bulletin/Repair Instructions

This bulletin provides instruction for installing an updated water meter.

FDM-SVC-041

Service Bulletin/Repair Instructions

This bulletin provides instruction for installing a T27 TCU module in place of a T17 TCU module

FDM-IB-008

Service Bulletin/Repair Instructions

This bulletin provides instructions for installing a longer hydraulic hose between the auxiliary pump and the hydraulic manifold load sense port, and a straight fitting to the hydraulic manifold load sense port to reduce pressure spikes. The longer hose provides additional hydraulic fluid volume between the auxiliary pump and hydraulic manifold and acts as an accumulator for the load sense auxiliary pump function.

PDM-IB-007

Service Bulletin/Repair Instructions

This bulletin provides instructions for inspecting the auxiliary pump pressure setting and adjusting the setting if the pump has the incorrect pressure setting.

FDM-IB-006

Service Bulletin/Repair Instructions

This bulletin provides instructions for performing an Over The Air Programming (OTAP) vehicle software update.

FDM-IB-005

Other

This bulletin provides instructions for installing an updated park brake valve pressure switch to eliminate the "sticking" switch issues, as well as the unintended horn alarm when the cab door is open. The updated pressure switch has a higher pressure activation and reset values which reduces the delay experienced with the previous pressure switch.

FDM-SVC-039

Service Bulletin/Repair Instructions

This bulletin provides instruction for updating the Medallion instrument cluster software version to a new version updating the high transmission temperature icon and alarm to match the Allison high-temp fault settings. The alarm activates when the TCM detects one of the following over-temperature conditions in the transmission sump.

FDM-SVC-040

Service Bulletin/Repair Instructions

This bulletin provides instructions to seal around the HVAC fresh air intake and drains ports, and install a deflector bracket to prevent water ingress into the cab.

Reading this report

Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.