Incorrectly Machined Outrigger May Drift – 2022 Terex C4000, Optima TC, & XT Pro Outrigger Vehicles

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-888 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Terex South Dakota, Inc. Submission Date : DEC 01, 2022 NHTSA Recall No. : 22V-888 Manufacturer Recall No. : SN714 Manufacturer Information : Manufacturer Name : Terex South Dakota, Inc. Address : 500 Oakwood Road PO Box1050 Watertown SD 57201 Company phone : 1-800-982-8975 Population : Number of potentially involved : 40 Estimated percentage with defect : 30 % Vehicle Information : Vehicle 1 : 2022-2022 Terex C4000, Optima TC, XT Pro Vehicle Type : LOW VOLUME VEHICLES Body Style : Power Train : NR Descriptive Information : The recall population includes all A-frame outriggers containing part number 631148 cylinders built from September 27, 2022 to October 27, 2022. Production Dates : SEP 27, 2022 – OCT 27, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect : Description of the Defect : The outrigger cylinder 631148 may be machined incorrectly. This will affect the lock valve cartridge seals and may allow the cylinder to drift. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : Drifting of the cylinder may result in the machine tipping resulting in injury. Description of the Cause : The cylinder may have been machined incorrectly, affecting the lock valve cartridge seals and allowing the cylinder to drift. Identification of Any Warning that can Occur : The operator is to conduct a daily pre-shift operational check of all outrigger and boom functions. Drifting of an outrigger could be detected during this check. Involved Components : Part 573 Safety Recall Report 22V-888 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 1 : Jack Cylinder Assembly Component Description : Jack Cylinder Assembly Component Part Number : 631148 Supplier Identification : Component Manufacturer Name : Newstar Rosenboom Address : 99 Zhongtai Road Linyi Foreign States 276024 Country : China Chronology : A dealer reported outriggers drifting in October. The investigation and consultation with the vendor determined that the cylinders may not have been machined correctly. The decision to recall the cylinders was made on November 22nd. Description of Remedy : Description of Remedy Program : All affected 631148 cylinders will be replaced with new, correctly machined cylinders. The cylinders will be replaced at no cost to the owner. How Remedy Component Differs from Recalled Component : The remedied cylinders start with cylinder serial number XH22110001 and progress numerically (XH22110002, XH22110003, etc). The recalled cylinders are serial numbers XH22090001 through XH22090234 and XH22100001 through XH22100100. Identify How/When Recall Condition was Corrected in Production : The potentially defective cylinders were isolated in production on October 28, 2022. Dealers were contacted and instructed to isolate all possibly defective cylinders. Twelve potentially defective cylinders were not found. There were 17 completed units containing 40 cylinders shipped by the installers to the end customers, which will contain the 12 remaining potentially defective cylinders. Corrected cylinders started to be used on November 14, 2022. Recall Schedule : Description of Recall Schedule : Dealer notification will begin by December 9, 2022. Owner notification will begin by February 1, 2023. Part 573 Safety Recall Report 22V-888 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Planned Dealer Notification Date : DEC 09, 2022 – NR Planned Owner Notification Date : FEB 01, 2023 – NR * NR – Not Reported

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From: Hegstrom, Jeff <Jeff.Hegstrom@terex.com> sent: Tuesday, November 29, 2022 10:54 AM To: Bob Dray <bdray@customtruck.com> Cc: Harlan, Jonathan <Jonathan.Harlan@terex.com> Subject: [EXTERNAL] Cyl inder Inspection Hello Bob, See the attached CTOS spreadsheet. We combined the units in question and added the installation tie down drawing for reference. These tie down drawings are also attached. Per our discussion, the cylinders are ident ifiable by: • They are painted black from the supplier (The exposed portion has likely been painted over but the original paint may be visible further down inside the outrigger leg} • A serial number starting with the prefix XH is stamped near the two fittings where the hoses hook up. • A cast seam is visible running between the two fittings (see the attached picture} Feel free to call with questions. Regards, Jeff Jeff Hegstrom Product Support Manager Terex Utilities T +1 800 982 8975 E jeff.hegstrom@terex.com Terex Utilities 3140 – 15~ Avenue SE Watertown, SD 57201 www.terex.com/utilities Visit us on: f ~ina ~ Please join me in making a difference. Think before you print THIS TRANSMISSION AND THE INFORMATION CONTAINED HEREIN IS CONFIDENTIAL AND IS INTENDED ONLY FOR YOUR USE. If you are not the addressee, any review, use, dissemination, distribution or copying of this transmission or its contents is strictly prohibited

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Subject: Location: Start: End: Recurrence: Meeting Status: Organizer: Resources: We did have this DIR meeting. Wed 12/7/2022 10:20 AM Wed 12/7/2022 10:40 AM (none) Accepted Sent: Monday, December 5, 2022 2:10 PM Subject: Defect Information Report When: .••. • . •· ….. • •• ! M-10:40 AM (UTC-06:00) Central Time (US & Canada) . Where: This conference ca ll invite is intended for Terex Utility Dealers only. This conference ca ll invite is to disclose Terex Utilities has submitted two Defect Information Reports (DIR) to the National Highway Traffic Safety Administration (NHTSA). A copy of each is attached for your review. Through the NHTSA website, (nhtsa.gov) this DIR is made public, and it’s also emailed to anyone who has signed up to receive Terex Utilities submissions. These notifications can generate questions from our customers, and we want to ensure you’re informed in the event you receive a ca ll pertaining to thess DIR. Please read the DIR in its’ entirety. We’ ll review the DIR during the conference ca ll and answer any questions. A campaign bulletin is in process and a second conference call will follow, once it’s completed. Microsoft Teams meeting Join on your computer, mobile app or room device Click here to join the meeting 1 2 Meeting ID: 345 843 420 793 Passcode: v7UL3f Download Teams | Join on the web Join with a video conferencing device 178472503@teams.bjn.vc Video Conference ID: 122 976 884 6 Alternate VTC instructions Or call in (audio only) +1 213-204-8852,,545080356# United States, Los Angeles Phone Conference ID: 545 080 356# Find a local number | Reset PIN Learn More | Meeting options ________________________________________________________________________________ saf~ 0 U1 ..,…_.qtlu,””°” ….. Terex South Dakota, Inc. Vehicle Report Transaction ID: 22-0010369-28700-10 (Original Report) Required fields indicated with * Manufacturer: Terex South Dakota, Inc. 500 Oakwood Road Watertown SD 57201 0-aig Ries 6058825613, This is a Safety Defect Report. Vehicle Information Terex C4000, Optima TC, XT Pro 2022 * Model Yr. Start: 2022 * Model Yr. End: 2022 * Make: Terex * Model: C4000, Optima TC, XT Pro Production Dates Begin: 09/27/ 2022 End: 10/27/2022 VIN Range(s): Begin: End: Type: LOW VOLUME VEHICLES Body Style: Powertrain: Descriptive Information: The recall population includes all A-frame outriggers containing part number 631148 cylinders built from September 27, 2022 to October 27, 2022. Number potentially involved: 40 Estimated percentage of involved with defect: 30% Defect / Noncom liance Descri tion For this Defect/Noncompliance: * Describe the defect or noncompliance: The outrigger cylinder 631148 may be machined incorrectly. This will affect the lock valve cartridge seals and may allow the cylinder to drift. If a noncompliance, provide d1e applicable FMVSS: If applicable, provide any furd1er FMVSS affected: Describe d1e cause: The cylinder may have been machined incorrectly, affecting the lock valve cartridge seals and allowing the cylinder to drift This Recall affects all vehicles. * Describe the safety risk: Drifting of the cylinder may result in the machine t ipping resulting in injury. Identify any warning whid1 can precede or occur: The operator is to conduct a daily pre-shift operational check of all outrigger and boom functions. Drifting of an outrigger could be detected during this check. If applicable, identify the manufacturer of the defective or noncompliant component. If the manufacturer of the component is unknown, provide the information for the company that supplied the subject component. Component manufacturer Company Information Company Name: Country: Address 1: Address 2: City: State: Zip/ Postal Code: Newstar Rosenboom China 99 Zhongtai Road Linyi Foreign States 276024 Involved Components Company Contact I nformation First Name: Emily Last Name: Yi Position: Sales Associate Email: Phone: xinghui@xinghui.cn 5352169996 If the defect or noncompliance involves a specific component(s), identify that component(s) below. Component Name: Component Description: Component Part Number: Jack Cylinder Assembly Jack Cylinder Assembly 631148 ChronologY.._!)f Defect/ Noncompliance Determination Provide d1e chronology of events leading up to the defect decision or test data for d1e noncompliance decision.: A dealer reported outriggers drifting in October. The investigation and consultation with the vendor det ermined that the cylinders may not have been machined correctly. The decision to recall the cylinders was made on November 22nd. Identitv.J.he Remedy_ Describe d1e defect/ noncompliance remedy program, induding the manufacturer’s plan for reimbursement All affected 631148 cylinders will be replaced with new, correctly machined cylinders. The cylinders will be replaced at no cost to the owner. Describe what distinguishes the remedy component from d1e recalled component. The remedied cylinders start with cylinder serial number XH22110001 and progress numerically (XH22110002, XH22110003, etc). The recalled cylinders are serial numbers XH22090001 through XH22090234 and XH22100001 through XH22100100. Identify and describe how and when the recall condition was corrected in production. The potent ially defective cylinders were isolated in production on October 28, 2022. Dealers were contacted and instructed to isolate all possibly defective cylinders. Twelve potentially defective cylinders were not found. There were 17 completed units containing 40 cylinders shipped by the installers to the end customers, which will contain the 12 remaining potentially defective cylinders. Corrected cylinders started to be used on November 14, 2022. Identifv…!he Recall Schedule Describe d1e recall schedule for notifications.: Dealer notification will begin by December 9, 2022. Owner notification will begin by February 1, 2023. Manufacturer’s identification code for d1is recall (if applicable): Planned Dealer Notification Begin Date: Planned Dealer Notification End Date: Planned Owner Notification Begin Date: Planned Owner Notification End Date: SN714 Please be reminded that owner notification letters must be mailed no more than 60 days from submission of this report. Manufacturer Comments to NHTSA Staff 12/09/2022 02/01/2023 Dealers are calling the rustomers of the 17 units that may contain the remaining 12 potentially defective cylinders. If the remaining 12 cylinders are located, no rustomer mailings are planned. Document UJ)load There are 0 doruments associated with this report. 1200 New Jersey Avenue, SE, West Building Washington DC 20590 USA 1.888.327.4236 TTY 1.800.424.9153 This application works best in IE9 and above and recent versions of Firefox, Chrome and Safari

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-888 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Terex South Dakota, Inc. Submission Date : APR 19, 2023 NHTSA Recall No. : 22V-888 Manufacturer Recall No. : SN714 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 : 40 Estimated percentage with defect : 30 % Vehicle Information : Vehicle 1 : 2022-2022 Terex C4000, Optima TC, XT Pro Vehicle Type : LOW VOLUME VEHICLES Body Style : Power Train : NR Descriptive Information : The recall population includes all A-frame outriggers containing part number 631148 cylinders built from September 27, 2022 to October 27, 2022. Production Dates : SEP 27, 2022 – OCT 27, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect : Description of the Defect : The outrigger cylinder 631148 may be machined incorrectly. This will affect the lock valve cartridge seals and may allow the cylinder to drift. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : Drifting of the cylinder may result in the machine tipping resulting in injury. Description of the Cause : The cylinder may have been machined incorrectly, affecting the lock valve cartridge seals and allowing the cylinder to drift. Identification of Any Warning that can Occur : The operator is to conduct a daily pre-shift operational check of all outrigger and boom functions. Drifting of an outrigger could be detected during this check. Involved Components : Part 573 Safety Recall Report 22V-888 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 1 : Jack Cylinder Assembly Component Description : Jack Cylinder Assembly Component Part Number : 631148 Supplier Identification : Component Manufacturer Name : Newstar Rosenboom Address : 99 Zhongtai Road Linyi Foreign States 276024 Country : China Chronology : A dealer reported outriggers drifting on October 24th, 2022. On October 27th, shipments of outriggers containing cylinder part number 631148 were halted and cylinders on-hand were quarantined. The investigation and consultation with the vendor determined that the cylinders may not have been machined correctly. As part of the investigation, dealers were called and asked to inspect their stock and determine if there were any issues. The first shipment of corrected cylinders was received on November 14th. One dealer reported that they had sold units which could contain the affected cylinders. The dealer contacted the customers, inspected, and replaced all affected cylinders. The decision to recall the cylinders was made on November 22nd. On November 29th, an email was sent to a dealer with inspection criteria. By December 22, 2022 all potentially defective cylinders had been verified as being replaced with no reported operational issues. Email from NHTSA staff on February 6, 2023 stated that since all potentially defective cylinders were accounted for, an owner notification letter was not required, only a quarterly report was required showing the campaign was 100% complete. Description of Remedy : Description of Remedy Program : All affected 631148 cylinders will be replaced with new, correctly machined cylinders. The cylinders will be replaced at no cost to the owner. How Remedy Component Differs from Recalled Component : The remedied cylinders start with cylinder serial number XH22110001 and progress numerically (XH22110002, XH22110003, etc). The recalled cylinders are serial numbers XH22090001 through XH22090234 and XH22100001 through XH22100100. Part 573 Safety Recall Report 22V-888 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Identify How/When Recall Condition was Corrected in Production : The potentially defective cylinders were isolated in production on October 28, 2022. Dealers were contacted and instructed to isolate all possibly defective cylinders. Twelve potentially defective cylinders were not found. There were 17 completed units containing 40 cylinders shipped by the installers to the end customers, which will contain the 12 remaining potentially defective cylinders. Corrected cylinders started to be used on November 14, 2022. Recall Schedule : Description of Recall Schedule : Dealer notification will begin by December 9, 2022. Owner notification will begin by February 1, 2023. Planned Dealer Notification Date : DEC 09, 2022 – NR Planned Owner Notification Date : FEB 01, 2023 – NR * NR – Not Reported

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