MAB-3113 – Load May Fall Due to Incorrect Winch Holding Valve – 2004-2023 Altec DL42 & DL45 Digger Derricks

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Customer Outreach PO Box 8338 product.safety@altec.com Phone 1-877-GO ALTEC Saint Joseph, MO 64508 connect.altec.com/login Facsimile 1-877-659-9929 IMPORTANT SAFETY RECALL This notice applies to your vehicle. Refer to the provided list. NHTSA Recall Number: Altec Identifier: Dear Altec Owner, For US owners, this notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. For Canadian owners, this notice is sent to you in accordance with the requirements of the Motor Vehicle Safety Act. This is to inform you that your vehicle may contain a defect that could affect the safety of a person. Altec Industries, Inc. has decided that a defect which relates to motor vehicle safety exists in certain DL42/45 and DL45B model derricks equipped with a specific boom tip winch option (041500161 or 970205901) and no third-stage (upper) boom built between May 2004 and July 2023. These units could have a winch holding valve installed that is incorrect for the application. If a unit has an incorrect winch holding valve, the failure could result in a falling load which could lead to death or serious injury. Refer to the included notice for the items covered under the Altec Warranty Policy. If you had this repair performed before you received this notice, you may be eligible to receive reimbursement for the cost of obtaining a pre-notification remedy of the problem associated with this recall. All work will be performed at no charge to the customer when presented for repair. Compare your unit’s identifying information with the provided list to verify your unit is affected. You may also contact Altec or view your fleet through Altec Connect to determine if there are any other outstanding notices. The inspection and repair can be performed by the customer, or you may contact Altec for further assistance. The inspection is expected to take less than 30 minutes to complete. The repair is expected to take one hour to complete. Parts may not be immediately available due to supplier backorder. If you have sold or retired the unit, update the records through Altec Connect. If you have leased this equipment to another person or company, you are required by Federal Law to forward a copy of this notice to the lessee by first class mail within ten (10) days of the receipt of this notice. For US owners: After contacting Altec, if you are still not able to have the safety condition remedied without charge and within a reasonable time, you may submit a complaint to: Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue SE, Washington, DC 20590 or call toll-free 1-888-327-4236 (TTY: 1-800-424-9153) or go to http://www.safercar.gov. For Canadian Owners: If you are still not able to have the safety condition remedied by your dealer within a reasonable time, please contact Altec. We regret this inconvenience; however, we are taking this action in the interest of your safety and continued satisfaction with Altec products. Thank you for your immediate attention on this important matter. 23V636 MAB-3113 September 2023 Page 1 of 3 Mandatory ACtion Bulletin—MABReleased: September 22, 2023 Altec Use Only Inspection labor 1.0 hr (Service); 0.50 hr (other) Repair labor 1.5 hr (Service); 1.0 hr (other) Account # 010.1093.43156.000.9337.000 Travel Not included NHTSA code 90 Prime fail P/N NA Doc ref 074900891 Altec Use Only Description Part No. Qty Warranty Winch holding valve replacment 991667598 1 Yes 3113-A Boom Tip Winch Holding Valve Inspection Units Affected: Certain DL42/45 and DL45B model derricks equipped with a specific boom tip winch option (041500161 or 970205901) and no third-stage (upper) boom built between May 2004 and July 2023. Verify your unit is affected by reviewing the attached list or accessing Altec Connect. Background: Altec has learned that the affected units could have an incorrect winch holding valve installed. The incorrect winch holding valve could lead to failure, causing the load to fall. Any units identified with the wrong holding valve should be removed from service until the replacement is made. DANGER Death or serious injury will result from a falling load. An incorrect holding valve can fail to hold a load, causing the load to fall. Inspect the winch holding valve prior to operation. Customer Action: Immediately remove the unit from Service and complete the inspection procedure beginning on page 2. If the inspection determines replacement is required, order and install the winch holding valve replacement kit, part number 991667598, or schedule the installation of the kit by Altec. Subsequent damage due to failure to perform the required action(s) in the time period allowed will not be covered by warranty. Requirements: The inspection is estimated to take less than 30 minutes and one person to complete. The repair is estimated to take 1 hour and one person to complete. Completion and Warranty: The inspection is covered under the Altec Warranty Policy and can be performed by Altec, the customer, or the customer’s warranty provider. Altec will perform the work for free at an Altec facility. If the customer or the customer’s warranty provider performs the work, a warranty claim must be submitted to be reimbursed for the cost of the parts and/or labor. Altec will allow up to $45 for the labor to perform the inspection and $90 for the labor to complete the repair. Customers are responsible for the travel costs of an Altec Mobile Service technician if the technician performs the inspection at the owner’s location.. Altec Contact Info: Altec Connect: connect.altec.com/login Phone: 1-877-GO ALTEC (1-877-462-5832) | Options: 1 – Parts; 2 – Shop Service; 3 – Mobile Service; 4 – Technical Support; 5 – Global Rental Service Request; 6 – Chassis Repair Page 2 of 3 MAB-3113-A Inspection Procedure: Normal mechanic’s hand tools are required for this inspection. Read and understand all steps of the instructions before beginning the procedure. 1. Position the unit on a level surface, apply the parking brake, and engage the unit’s hydraulic system. Chock the wheels, and properly set the outriggers. 2. Use the lower controls to move the booms so that the boom tip and winch motor can be easily accessed while standing on the ground. 3. Disengage the unit’s hydraulic system, and turn off the engine. Remove the key from the ignition, and secure it following your employer’s vehicle lockout/tagout procedure. 4. Inspect the back side of the winch holding valve, the side of the valve that faces the flare weldment (refer to Figure 1). a. If the valve is stamped with ZPG or 970255017, no repair is required. Proceed to step 7. b. If the valve is stamped with anything other than ZPG or 970255017, the incorrect holding valve is installed. Proceed to step 5. 5. Remove the unit from Service. 6. Order and install the winch valve replacement kit, part number 991667598, or contact Altec to schedule this repair. Do not return the unit to service until the replacement is made. Do not complete the Inspection Sheet at the end of this notice. Completion of the notice will be documented after the vehicle is repaired. 7. No repair is required. Perform steps a through d below. a. Put the unit back into service. b. Complete the Inspection Sheet at the end of this notice, and return it to Altec. c. If the inspection was performed by Altec, mark this notice as complete on the Service Request. Figure 1 — Winch Holding Valve Holding Valve Holding Valve Manifold Model Altec Unit Serial Number Date Inspected Company Name: _______________________________________________ Phone____________________________ Service Company Name:_ ________________________________________ Phone:___________________________ Company Contact: _ ________________________________________________________________________________ Company Mailing Address:_ __________________________________________________________________________ City: _______________________________________________State/Province:_________________________________ ZIP/Mailing Code:_ __________________________________Country:________________________________________ Signature:_ _________________________________________ Submission of this form does not order parts or schedule service from Altec. Contact Altec for more information or to schedule the work to be done by Altec. Make copies of this form for additional units if needed. Page 3 of 3 MAB-3113-A Inspection Sheet Altec Connect Complete this form and submit it to Altec to document inspection completion. Choose one of these options for submission. • Scan the Product Safety QR code and complete the form. • Complete, scan, and email this page to product.safety@altec.com • Online through the customer portal – Altec Connect* • Complete and return the included postcard. • FAX to 1-877-659-9929 *If the customer or the customer’s warranty provider performs the repair, submit a warranty claim through Altec Connect to be reimbursed for the cost of the parts and/or labor. Product Safety

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 23V-636 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Altec Industries, Inc. Submission Date : SEP 14, 2023 NHTSA Recall No. : 23V-636 Manufacturer Recall No. : MAB 3113 Manufacturer Information : Manufacturer Name : Altec Industries, Inc. Address : 210 Inverness Center Drive Birmingham AL 35242 Company phone : 205 991 7733 Population : Number of potentially involved : 53 Estimated percentage with defect : 50 % Vehicle Information : Vehicle 1 : 2004-2023 Altec DL42, DL45 Vehicle Type : Body Style : Power Train : NR Descriptive Information : All digger derricks equipped with the affected boom tip winch option were included in the recall population. The recall population was determined from a review of production records. Production Dates : JAN 05, 2004 – JUN 07, 2023 VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect : Description of the Defect : The incorrect hydraulic load holding valve was installed on certain boom tip winches. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : If the incorrect hydraulic load holding valve was installed, a load on the winch could lower uncontrollably, increasing the risk of death or serious injury to personnel or others nearby. Description of the Cause : NR Identification of Any Warning that can Occur : There is no warning to the operator that the incorrect load-holding valve is installed. Failure to properly hold a load could occur during regular operation, which might alert the operator that the winch is not working properly and should taken out of service and inspected. Involved Components : Part 573 Safety Recall Report 23V-636 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 1 : Load Holding Valve Component Description : Load Holoding Valve Component Part Number : 970255017 Supplier Identification : Component Manufacturer Name : Altec Industries Inc. Address : 2106 S. Riverside Rd Saint Joseph Missouri 64507 Country : United States Chronology : On September 6, 2023, Altec was notified that a unit in the field allowed a load on the winch line to lower while the winch control was in neutral. No injury or property damage was reported. Troubleshooting determined that the incorrect load-holding valve block was installed on the custom option boom tip winch motor. An investigation was opened to determine if other units in the field could have the incorrect load-holding valve installed. On September 8, 2023, after reviewing the production records and field reports, Altec determined that a defect could exist on units equipped with the custom option winch assembly. There were no other warranty claims or field reports identified. There have been no other accidents, injuries, or deaths related to this issue. Description of Remedy : Description of Remedy Program : The incorrect valve will be replaced with the correct load-holding valve. The recall remedy will be completed free of charge when presented for repair. The Altec Warranty Policy covers the recall remedy, including cases requiring reimbursement for the cost of obtaining a pre-notification remedy of the problem associated with this recall. How Remedy Component Differs from Recalled Component : The correct load-holding valve is designed to hold a load on this affected winch motor installation. Identify How/When Recall Condition was Corrected in Production : The correct load-holding valve will be installed on the unit. Recall Schedule : Part 573 Safety Recall Report 23V-636 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Description of Recall Schedule : Altec will issue MAB 3113 to the owners of the affected units. Altec does not have a dealer network and issues letters to owners only. Planned Dealer Notification Date : OCT 06, 2023 – OCT 06, 2023 Planned Owner Notification Date : OCT 06, 2023 – OCT 06, 2023 * NR – Not Reported

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