SN728 – Controller May Fail to Keep Platform Level – 2022-2023 Terex TM

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OMB Control No.: 2127-0004
Part 573 Safety Recall Report 24V-438
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
Terex South Dakota, Inc. JUN 13, 2024 NHTSA Recall No. : 24V-438 Manufacturer Recall No. : SN728 Manufacturer Information :
Manufacturer Name : Terex South Dakota, Inc.
Address : 3140 15th Ave SE
PO Box 1050 Watertown SD 57201 Company phone : 18448373948
Population :
Number of potentially involved : 121 Estimated percentage with defect : 100 %
Vehicle Information : Vehicle 1 : 2022-2023 Terex TM Vehicle Type : LOW VOLUME VEHICLES
Body Style :
Power Train : NR
Descriptive Information : The affected controller entered production on June 16, 2022. There was a software update that went into production on November 14, 2023. All TM aerial devices produced from June 16,2022 through November 13, 2023 are included in the recall population.
Production Dates : JUN 16, 2022 – NOV 13, 2023
VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect :
Description of the Defect : The controller for maintaining the platform in a level condition may allow the platform to dump while squeezing the unit control enable trigger if electrical power to the controller is lost.
FMVSS 1 : NR FMVSS 2 : NR
Description of the Safety Risk : Dumping of the platform may cause the platform occupants to fall resulting in injury.
Description of the Cause : The software for the tilt controller on the affected machines may lose the ability to maintain level while squeezing the enable trigger if power to the controller is lost. Identification of Any Warning
that can Occur : If power is lost to the platform tilt controller, the platform may not maintain a level position when the enable trigger on the upper control is squeezed.
Involved Components : Part 573 Safety Recall Report 24V-438 Page 2 Component Name 1 : Master Leveling Controller
Component Description : Controller for platform leveling system Component Part Number : 633353 Supplier Identification : Component Manufacturer
Name : Hartfiel Automation Address : 2600 Technology Drive
Plano Texas 75074
Country : United States Chronology :
On 10/30/2023, Terex received a report from the field of a platform that dumped. The investigation found that a cover was damaged due to contact with another object and severed the power wires to the leveling controller and the secondary system that limits platform tilting to 15 degrees. On 11/3/2023, testing of the system shows that if power is disconnected from the leveling controller while squeezing the unit control enable trigger, the platform may dump. On 11/14/2023, a software update is implemented for production that prevents the platform from dumping if power to the leveling controller is disconnected. On 11/16/2023, Terex received a report from a dealer of a platform that dumped during a function test, the investigation discovered the power wire to the leveling controller was disconnected. Terex consulted with the level controller supplier to determine if all units in the time frame may have been affected. The affected unit list was finalized on 6/5/2024 and the decision to recall was made on 6/10/2024. Description of Remedy :
Description of Remedy Program : Affected controllers will be either reprogrammed or replaced at no cost to
the owner. How Remedy Component Differs from Recalled Component :
Identify How/When Recall Condition was Corrected in Production : Recalled machines will not be visibly distinguishable from remedied machines.
A software update was implemented on November 14, 2023 for machines in production. Recall Schedule : The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 24V-438
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The information contained in this report was submitted pursuant to 49 CFR §573
Description of Recall Schedule : Dealer notification will begin by 6/25/2024 and owner notification will
begin by 8/9/2024. Planned Dealer Notification Date : JUN 25, 2024 – NR Planned Owner Notification Date : AUG 09, 2024 – NR
* NR – Not Reported

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