Technical Service Bulletins
Search 172,063 manufacturer communications covering 879 vehicle makes from 1955 to 2025.
Showing 56 bulletins for OSHKOSH
FDM-PB-004
Jul 14, 2021
350000 EQUIPMENT
This bulletin outlines the specific Parker pump version differences.
FDM-TSIB-030
Jul 14, 2021
060000 ENGINE AND ENGINE COOLING
This bulletin provides information on belt routing of the three belts on the Cummins X12 engine.
FDM-SVC-001
Jul 12, 2021
060000 ENGINE AND ENGINE COOLING
This bulletin provides instructions to update the cab heater plumbing ball valve mount. The new ball valve mount design was developed after receiving reports the ball valve mounting screws were breaking off in the ball valve body. The new
FDM-TSIB-029
Jul 12, 2021
100000 POWER TRAIN
Oshkosh has identified some Allison transmission Gen 5 equipped trucks are experiencing a stuck in gear fault. Removal of the Trans ID wire from the transmission control module (TCM) and transmission connectors resolves this potential faul
FDM-TSB-003
Jul 8, 2021
350000 EQUIPMENT
This bulletin provides information and instruction on removing the water add valve from the charge hopper location and installing a new air operated valve at the water manifold located on the frame rail. Moving the water add valve elimina
FDM-SVC-007
Jul 7, 2021
110000 ELECTRICAL SYSTEM
This bulletin provides instruction for replacing the original Eaton external rocker switches used to control the water system, hood lift, and Load-SpanA? Tag Axle (if equipped) with improved Carling switches. The Carling rocker switches o
FDM-SVC-008
Jul 7, 2021
350000 EQUIPMENT
This bulletin provides instruction for disconnecting the water manifold pressure switch. Inital vehicle design incorporated the pressure switch, but continued testing showed the switch was causing system functionality and performance conc
FDM-SVC-009
Jul 7, 2021
110000 ELECTRICAL SYSTEM
This bulletin provides instruction for installing isolated rear camera video cables from the camera to the driver dsiplay in the vehicle cab. Oshkosh has received reports of non-working rear cameras, installing isolated video cables allow
FDM-TSIB-028
Jun 29, 2021
110000 ELECTRICAL SYSTEM
The following procedure provides instruction for Fleet Managers to access their vehicle system to change parameters.
FDM-SVC-002
Jun 28, 2021
350000 EQUIPMENT
This 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
FDM-TSIB-027
Jun 23, 2021
100000 POWER TRAIN
This 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.
FDM-TSIB-026
Jun 16, 2021
100000 POWER TRAIN
This 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 r
FDM-TSIB-025
Jun 14, 2021
350000 EQUIPMENT
This bulletin provides instructions for bolting the water tank mounting feet to the water tank if the bonded feet become loose.
FDM-TSIB-024
May 12, 2021
110000 ELECTRICAL SYSTEM
This bulletin provides instruction for checking electrical connections at various critical locations. Loose electrical connections can cause false readings and lead to electrical system errors.
FDM-TSIB-023
May 4, 2021
110000 ELECTRICAL SYSTEM
This 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
FDM-TSIB-018
Dec 17, 2020
010000 STEERING
This bulletin provides instruction to update the hydraulic steering system by adding an external pressure relief valve. Field reports of failed steering pump seals led to testing that determined internal recirculation of hot oil was the ca
FDM-TSIB-016
Dec 1, 2020
100000 POWER TRAIN
This bulletin provides instruction to correct an installation error that may damage the battery box power distribution fuses, and updates the fuse identification label.
FDM-TSIB-017
Nov 19, 2020
050000 PARKING BRAKE
This bulletin provides general information about the v8.2.1/7.6.1 software update that enhances the vehicle?s hydraulic system, auxiliary axles (tag, pusher, and Load-Span?), parking brake system, and drum speed.
FDM-TSIB-001
Oct 27, 2020
061530 ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:SEALS/GASKETS
This bulletin provides instruction and information on required vehicle hydraulic system updates that address performance deficiencies in the vehicle?s hydraulic system.
FDM-TSIB-015
Sep 22, 2020
010000 STEERING
This bulletin provides instruction on how to correctly prime the hydraulic steering pump. Use this procedure anytime the hydraulic steering pump is replaced.
FDM-TSIB-014
Sep 8, 2020
060000 ENGINE AND ENGINE COOLING
This bulletin provides instruction and information on required vehicle hydraulic system updates that address performance deficiencies in the vehicle?s hydraulic system. The hydraulic water pump return hose needs to be rerouted directly to
FDM-TSIB-013
Sep 3, 2020
010000 STEERING
There may be air trapped in the steering system if the steering wheel is turned from full left to full right and the steering doesn?t feel consistently smooth through the process. This bulletin provides instruction on how to bleed air from
FDM-TSIB-011
Jun 18, 2020
350000 EQUIPMENT
Oshkosh engineering has identified a chute speed inconsistency on some 2020 model year S-Series front discharge mixers. Affected trucks will have chute speeds that are faster in one direction and slower in the other direction. Chute left/ri
FDM-TSIB-012
Jun 1, 2020
110000 ELECTRICAL SYSTEM
Fleet Manager System Access instructions for configurable settings.
TB-H816
Jul 20, 2018
106000 POWER TRAIN:AXLE ASSEMBLY
This Technical Bulletin is for some Oshkosh S-Series Front Discharge Concrete Mixer trucks that are fitted with an optional Hendrickson Load Span Tag Axle (LSTA) may have seat-to-axle fasteners that were incorrectly torqued at the factory.