1978 OSHKOSH S SERIES
1 recalls, 0 complaints - 8 TSBs
84V110000 Sep 21, 1984
SUSPENSION:MULTIPLE AXLE
Defect Description
THESE TRUCKS WERE EQUIPPED WITH DEFECTIVE HYDRAULIC PRESSURE SWITCHES IN THE LOAD SPAN TAG SYSTEM. WHEN A MALFUNCTION IN THIS SYSTEM OCCURS, AXLE TO PAVEMENT PRESSURE INCREASES WHEN VEHICLE IS OPERATED IN AN UNLOADED CONDITION.
Remedy
THE EXISTING CONTROL SWITCH WILL BE REPLACED WITH A THREE-POSITION SWITCH WHICH, BY USE OF A NEUTRAL POSITION, WILL PREVE NT PRESSURE BUILDUP. A NEW OPERATION LABEL WILL ALSO BE INCLUDED.
No complaints found for this vehicle.
Technical Service Bulletins, 1978 OSHKOSH S SERIES
8 manufacturer communications from 8 unique bulletins. TSBs describe known problems and recommended fixes from the manufacturer.
Most Affected Components
| Component | Bulletins |
|---|---|
| 350000 EQUIPMENT | 3 |
| 110000 ELECTRICAL SYSTEM | 2 |
| 100000 POWER TRAIN | 2 |
| 092300 FUEL SYSTEM, OTHER:FUEL FILTER | 1 |
FDM-SVC-030
Oct 3, 2023
092300 FUEL SYSTEM, OTHER:FUEL FILTER
This bulletin provides instruction for installing a hydraulic system charge pump filter.
FDM-TSIB-043
Jul 24, 2023
350000 EQUIPMENT
This 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 cha
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
OSHKOSH S SERIES - All Years Overview
Complete safety history for the OSHKOSH S SERIES across all model years (1978, 2000).
33
Total Recalls
1
Total Complaints
0
Investigations
0
Reported Crashes
0
Reported Fires
1
Reported Deaths
OSHKOSH S SERIES - Year by Year
Compare recalls and complaints across model years. Click any year to see full details.
| Year | Recalls | Complaints | |
|---|---|---|---|
| 2000 | 1 | 1 | View |
| 1999 | 1 | 0 | View |
| 1998 | 1 | 0 | View |
| 1997 | 1 | 0 | View |
| 1995 | 1 | 0 | View |
| 1994 | 1 | 0 | View |
| 1993 | 1 | 0 | View |
| 1992 | 1 | 0 | View |
| 1991 | 2 | 0 | View |
| 1990 | 1 | 0 | View |
| 1989 | 1 | 0 | View |
| 1988 | 2 | 0 | View |
| 1987 | 2 | 0 | View |
| 1986 | 2 | 0 | View |
| 1985 | 3 | 0 | View |
| 1984 | 4 | 0 | View |
| 1983 | 3 | 0 | View |
| 1982 | 1 | 0 | View |
| 1981 | 1 | 0 | View |
| 1980 | 1 | 0 | View |
| 1979 | 1 | 0 | View |
| 1978 (current) | 1 | 0 |