Wheel Bearing Seal May Leak Grease On Brakes – 2021-2022 Doosan Portable Power Portable Air Compressors

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704 883 3500 www.doosanportablepower.com DOOSAN and the Doosan logo are trademarks of Doosan Corporation. Doosan Portable Power 1293 Glenway Drive Statesville, NC 28625 SAFETY NOTICE – PLEASE READ IMMEDIATELY October 24, 2022 CYPRESS EQUIPMENT RENTAL INC 6012 INDUSTRIAL DRIVE GEISMAR, LA 70734 Safety Recall Notice 6-22-6 / NHTSA Recall No. 22V717 This Notice applies to your Doosan Portable Power Portable Air Compressor: XP825WCU-T1 Your Unit Serial Number: 285633RFAGH43 Dear Doosan Portable Power Portable Compressor Owner, This Notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act. Doosan Portable Power Company has determined that a defect, which relates to vehicle safety, exists in certain 2021 and 2022 Doosan Portable Power Air Compressors with the Unit Serial Number provided above. We apologize for this inconvenient situation and want to assure you that, with your support and the support of your Doosan Portable Power Dealer, we will correct this issue at no cost to you. What is the issue? Doosan Portable Power has received a report of wheel bearing seals that did not meet the design specifications of the axle manufacturer. On the affected portable air compressors, the inner diameter of the axle seal was oversized creating a gap between the seal and the axle allowing the wheel bearing grease to enter the drum brakes. The wheel bearing grease will coat the brake drums and shoes causing loss of adequate braking during towing. This could increase the risk of a crash. What should you do? 1. Immediately stop towing the unit and notify others not to tow it until the potential issue has been corrected. The unit can still be operated in a stationary position but must not be towed. 2. Contact your local Doosan Portable Power dealer and request a service date for TSB 6-22-6. Provide the dealer with your Unit Model & Serial Number located at the top of this letter. If you do not have a local servicing dealer or you do not know who the local servicing dealer is, you can access https://www.doosanportablepower.com/na/en/support/find-a-dealer for dealer address, maps, and driving directions. What will Doosan Portable Power and your dealer do? Doosan Portable Power dealers are authorized to inspect and repair any damaged components found related to TSB 6-22-6. This safety campaign will be performed free of charge to the unit owner (parts, travel time/mileage, and labor). 704 883 3500 www.doosanportablepower.com DOOSAN and the Doosan logo are trademarks of Doosan Corporation. Doosan Portable Power 1293 Glenway Drive Statesville, NC 28625 How long will it take? The time needed to complete this inspection/repair is approximately 1 day. However, due to service time availability, travel schedule to the unit, and parts ordering time, additional time may be needed to complete repairs if required. Have you previously paid for this repair? If you have previously paid for repairs associated with the issue described in this letter, you still need to have this recall performed to ensure the correct parts and procedures were used. You may be eligible for a refund for previously paid repairs. Refunds will only be provided for issues related to TSB 6-22-6. To verify eligibility for a refund, present all your receipts of the repairs along with any available photos or write up of the issues. Your Servicing Doosan Portable Power Dealer will request for a refund on your behalf to Doosan Portable Power. Refunds could take up to 60 days to process. What if you no longer own this Doosan Portable Power Unit? If you no longer have this product, we ask that you contact us with its disposition so we can contact the new owner. Contact Doosan Portable Power Technical Service at 1-800-633-5206 Option #2. You received this recall letter because government regulations require that notification be sent to the last known owner of record. Our records indicate that you are the current owner. Can we assist further? If you have difficulties getting your Doosan Portable Power unit repaired promptly at no charge to you, please contact your local dealership’s Service Manager for assistance. If you wish to contact us directly for support in this matter, please call 1-800-633-5206 Option #2 to speak with a Doosan Portable Power Representative. Representatives are available Monday-Friday: 8:00AM – 6:00PM (Eastern Time). If after contacting Doosan you are still not satisfied, that the remedy was done at no charge or in a timely manner, you may submit a written complaint to the Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Ave. SE, Washington, DC 20590 or call the toll-free Vehicle Safety Hotline at 1-888-327-4236; (TTY: 1-800-424-9153) or go to http://www.safercar.gov. Thank you for your attention to this matter. Yours truly, “Shawn Warkenthien Senior Director Global Product Safety & Compliance”

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704 883 3500 www.doosanportablepower.com DOOSAN and the Doosan logo are trademarks of Doosan Corporation. Doosan Portable Power 1293 Glenway Drive Statesville, NC 28625 SAFETY NOTICE – PLEASE READ IMMEDIATELY October 18, 2022 Dear Doosan Portable Power Dealer, Doosan Portable Power is sending this Safety Notice to certain owners of various models of portable air compressors built between August 31, 2021 and August 31, 2022 and listed in Technical Service Bulletin 6-22-6. This notice alerts owners to a safety concern explained below. Doosan Portable Power has received a report of wheel bearing seals that did not meet the design specifications of the axle manufacturer. On the affected portable air compressors the inner diameter of the axle seal was oversized creating a gap between the seal and the axle allowing the wheel bearing grease to enter the drum brakes. The wheel bearing grease will coat the brake drums and shoes causing loss of adequate braking during towing. This could increase the risk of a crash. We are reporting this issue to the National Highway Traffic Safety Administration (NHTSA) and Transport Canada. Federal Regulations require you to complete this safety campaign and per the Doosan North America Warranty Policy and Procedure Manual, you are obligated to complete the requested work within 60 days. We request that you immediately: 1. Read the attached Safety Recall addressed to owners. 2. Contact all owners of affected portable air compressors and arrange to correct their machines. This will be done at no cost to the owner. Inform them that the equipment can be operated in a stationary position but must NOT be towed until the corrections are made. 3. Stop Sale/Stop Rental on all new and used portable air compressors affected by this campaign until they have been corrected. 4. Stop towing the affected equipment until the corrections are made. Thank you for your attention to this matter. If you have any questions about this Safety Recall, please call Doosan Portable Power Technical Services at 1-800-633-5206 Option #2 Yours truly, “Shawn Warkenthien Senior Director Global Product Safety & Compliance”

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-717 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Doosan Portable Power Submission Date : SEP 26, 2022 NHTSA Recall No. : 22V-717 Manufacturer Recall No. : NR Manufacturer Information : Manufacturer Name : Doosan Portable Power Address : 1293 GLENWAY DRIVE STATESVILLE NC 28625 Company phone : 8833500 Population : Number of potentially involved : NR Estimated percentage with defect : NR Vehicle Information : Vehicle 1 : 2021-2022 Doosan Portable Power Portable Air Compressors Vehicle Type : TRAILERS Body Style : OTHER Power Train : NR Descriptive Information : Received a field report of wheel bearing grease entering brake drum due to installation of incorrect axle seal. The affected number of units in the field were determined to be 590. Production Dates : SEP 30, 2021 – AUG 31, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect : Description of the Defect : Installation of wheel bearing seals that did not meet the design specification were identified by the axle supplier, reducing the braking performance of affected portable air compressors. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : On the affected portable air compressors the inner diameter of the axle seal was oversized creating a gap between the seal and the axle allowing the wheel bearing grease to enter the drum brakes. The wheel bearing grease will coat the brake drums and shoes causing loss of adequate braking during towing. This could increase the risk of a crash. Description of the Cause : NR Identification of Any Warning that can Occur : NR Involved Components : Part 573 Safety Recall Report 22V-717 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 1 : oil seal Component Description : wheel hub axle seal Component Part Number : 010 010 00 Supplier Identification : Component Manufacturer Name : Dexter Address : 2900 Industrial Parkway East Elkhart Indiana 46516 Country : United States Chronology : Doosan Portable Power received a field report on 8/29/2022 of a portable air compressor with wheel bearing grease on brakes caused by an incorrect sized seal. Based on the field report, Doosan Portable Power initiated an internal investigation including contacting the axle supplier. Doosan Portable Power and the axle supplier determined noncompliance with supplier’s manufacturing requirements. The axle supplier installed the incorrect seal part number 010 036 00 (Doosan part number 46856856) (hereinafter “incorrect seal”) instead of correct seal part number 010 010 00 (Doosan part number 46676634) (hereinafter “correct seal”) on Doosan Portable Power built portable air compressors built between 9/30/2021 to 8/31/2022. Description of Remedy : Description of Remedy Program : Customer letters, dealer letters, and a Technical Service Bulletin are being developed to identify and correct the issue. Additionally, warnings will instruct users to immediately stop towing the affected portable air compressors until the repairs have been made. This solution will be done at no charge to the customer and the dealers will file for reimbursement through the Doosan warranty system. How Remedy Component Differs from Recalled Component : The incorrect seal has a larger inner seal diameter than the correct seal. The remedy program will include instructions on how to identify if the incorrect seals are installed on the affected portable air compressors and detailed instructions on how to replace the seals and any damaged axle components. Part 573 Safety Recall Report 22V-717 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Identify How/When Recall Condition was Corrected in Production : As of September 1, 2022 the axle seals on all production units have been inspected and validated to ensure Engineering specifications have been achieved. Recall Schedule : Description of Recall Schedule : NR Planned Dealer Notification Date : NR – NR Planned Owner Notification Date : NR – NR * NR – Not Reported

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-717 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Doosan Portable Power Submission Date : SEP 27, 2022 NHTSA Recall No. : 22V-717 Manufacturer Recall No. : NR Manufacturer Information : Manufacturer Name : Doosan Portable Power Address : 1293 GLENWAY DRIVE STATESVILLE NC 28625 Company phone : 8833500 Population : Number of potentially involved : 702 Estimated percentage with defect : NR Vehicle Information : Vehicle 1 : 2021-2022 Doosan Portable Power Portable Air Compressors Vehicle Type : TRAILERS Body Style : OTHER Power Train : NR Descriptive Information : Received a field report of wheel bearing grease entering brake drum due to installation of incorrect axle seal. The affected number of units in the field were determined to be 702. Production Dates : AUG 31, 2021 – AUG 31, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect : Description of the Defect : Installation of wheel bearing seals that did not meet the design specification were identified by the axle supplier, reducing the braking performance of affected portable air compressors. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : On the affected portable air compressors the inner diameter of the axle seal was oversized creating a gap between the seal and the axle allowing the wheel bearing grease to enter the drum brakes. The wheel bearing grease will coat the brake drums and shoes causing loss of adequate braking during towing. This could increase the risk of a crash. Description of the Cause : NR Identification of Any Warning that can Occur : NR Involved Components : Part 573 Safety Recall Report 22V-717 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 1 : oil seal Component Description : wheel hub axle seal Component Part Number : 010 010 00 Supplier Identification : Component Manufacturer Name : Dexter Address : 2900 Industrial Parkway East Elkhart Indiana 46516 Country : United States Chronology : Doosan Portable Power received a field report on 8/29/2022 of a portable air compressor with wheel bearing grease on brakes caused by an incorrect sized seal. Based on the field report, Doosan Portable Power initiated an internal investigation including contacting the axle supplier. Doosan Portable Power and the axle supplier determined noncompliance with supplier’s manufacturing requirements. The axle supplier installed the incorrect seal part number 010 036 00 (Doosan part number 46856856) (hereinafter “incorrect seal”) instead of correct seal part number 010 010 00 (Doosan part number 46676634) (hereinafter “correct seal”) on Doosan Portable Power built portable air compressors built between 9/30/2021 to 8/31/2022. Description of Remedy : Description of Remedy Program : Customer letters, dealer letters, and a Technical Service Bulletin are being developed to identify and correct the issue. Additionally, warnings will instruct users to immediately stop towing the affected portable air compressors until the repairs have been made. This solution will be done at no charge to the customer and the dealers will file for reimbursement through the Doosan warranty system. How Remedy Component Differs from Recalled Component : The incorrect seal has a larger inner seal diameter than the correct seal. The remedy program will include instructions on how to identify if the incorrect seals are installed on the affected portable air compressors and detailed instructions on how to replace the seals and any damaged axle components. Part 573 Safety Recall Report 22V-717 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Identify How/When Recall Condition was Corrected in Production : As of September 1, 2022 the axle seals on all production units have been inspected and validated to ensure Engineering specifications have been achieved. Recall Schedule : Description of Recall Schedule : NR Planned Dealer Notification Date : NR – NR Planned Owner Notification Date : NR – NR * NR – Not Reported

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-717 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Doosan Portable Power Submission Date : OCT 05, 2022 NHTSA Recall No. : 22V-717 Manufacturer Recall No. : 6-22-6 Manufacturer Information : Manufacturer Name : Doosan Portable Power Address : 1293 GLENWAY DRIVE STATESVILLE NC 28625 Company phone : 8833500 Population : Number of potentially involved : 596 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2021-2022 Doosan Portable Power Portable Air Compressors Vehicle Type : TRAILERS Body Style : OTHER Power Train : NR Descriptive Information : Received a field report of wheel bearing grease entering brake drum due to installation of incorrect axle seal. The affected number of units in the field were determined to be 702. Production Dates : AUG 31, 2021 – AUG 31, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect : Description of the Defect : Installation of wheel bearing seals that did not meet the design specification were identified by the axle supplier, reducing the braking performance of affected portable air compressors. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : On the affected portable air compressors the inner diameter of the axle seal was oversized creating a gap between the seal and the axle allowing the wheel bearing grease to enter the drum brakes. The wheel bearing grease will coat the brake drums and shoes causing loss of adequate braking during towing. This could increase the risk of a crash. Description of the Cause : NR Identification of Any Warning that can Occur : NR Involved Components : Part 573 Safety Recall Report 22V-717 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 1 : oil seal Component Description : wheel hub axle seal Component Part Number : 010 010 00 Supplier Identification : Component Manufacturer Name : Dexter Address : 2900 Industrial Parkway East Elkhart Indiana 46516 Country : United States Chronology : Doosan Portable Power received a field report on 8/29/2022 of a portable air compressor with wheel bearing grease on brakes caused by an incorrect sized seal. Based on the field report, Doosan Portable Power initiated an internal investigation including contacting the axle supplier. Doosan Portable Power and the axle supplier determined noncompliance with supplier’s manufacturing requirements. The axle supplier installed the incorrect seal part number 010 036 00 (Doosan part number 46856856) (hereinafter “incorrect seal”) instead of correct seal part number 010 010 00 (Doosan part number 46676634) (hereinafter “correct seal”) on Doosan Portable Power built portable air compressors built between 9/30/2021 to 8/31/2022. Description of Remedy : Description of Remedy Program : Customer letters, dealer letters, and a Technical Service Bulletin are being developed to identify and correct the issue. Additionally, warnings will instruct users to immediately stop towing the affected portable air compressors until the repairs have been made. This solution will be done at no charge to the customer and the dealers will file for reimbursement through the Doosan warranty system. How Remedy Component Differs from Recalled Component : The incorrect seal has a larger inner seal diameter than the correct seal. The remedy program will include instructions on how to identify if the incorrect seals are installed on the affected portable air compressors and detailed instructions on how to replace the seals and any damaged axle components. Part 573 Safety Recall Report 22V-717 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Identify How/When Recall Condition was Corrected in Production : As of September 1, 2022 the axle seals on all production units have been inspected and validated to ensure Engineering specifications have been achieved. Recall Schedule : Description of Recall Schedule : Doosan Portable Power will begin sending out the letters to Dealers notifying them of the Recall and Technical Service Bulletin informing them of affected models and remedy beginning 10/24/2022.Doosan Portable Power will begin sending out letters to Owners notifying them of the Recall and steps to take for the remedy beginning 10/24/2022. Planned Dealer Notification Date : OCT 24, 2022 – NOV 21, 2022 Planned Owner Notification Date : OCT 24, 2022 – NOV 21, 2022 * NR – Not Reported

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