Air Line Relocation – Fontaine-Modified 2020-2023 Elgin Crosswind 1 & Elgin Whirlwind 1 Sweepers

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– Fontaine Modification Field Service Bulletin Document # FNT-103014025 Page 1 of 8 Rev # – Field Service Bulletin Name: Peterbilt 220 Air Line Relocation Creator Name and Title: Garrett Brown Issue Date: 06/28/2022 Purpose: This document proposes the evaluation criteria and subsequent repair requirements related to possible interference between the VPD suction oil line and the chassis air compressor discharge line on Peterbilt 220 chassis used on Elgin Crosswind1 and Whirlwind1 sweepers. Inspection of the units will determine which condition(s) exist and what repairs are required. Please verify Elgin Service Bulletin SB-0235C and SB-0238D have been completed. Action: Condition A ……………………………………………………………………………………………………………………………………… 2 Condition B ……………………………………………………………………………………………………………………………………… 2 Condition C ……………………………………………………………………………………………………………………………………… 3 Condition D ……………………………………………………………………………………………………………………………………… 4 Repair ……………………………………………………………………………………………………………………………………………… 5 – Fontaine Modification Field Service Bulletin Document # FNT-103014025 Page 2 of 8 Rev # – Field Service Bulletin Name: Peterbilt 220 Air Line Relocation 1 Condition A 1.1 Evaluation: 1.1.1 There is no evidence of contact between the suction tube and the stainless braided line. 2 Condition B 2.1 Evaluation: 2.1.1 There is evidence of contact between the suction tube and the stainless steel braided airline. 2.1.2 The suction tube plating is worn but there is no discernable depression in the suction tube. 2.1.3 There is no wear or fraying visible on the air line. – Fontaine Modification Field Service Bulletin Document # FNT-103014025 Page 3 of 8 Rev # – Field Service Bulletin Name: Peterbilt 220 Air Line Relocation 3 Condition C 3.1 Evaluation: 3.1.1 The suction tube should be inspected before removing from the VPD. 3.1.2 There is evidence of a worn depression and/or hole worn in the suction tube. 3.1.3 If any damage is found, contact Fontaine Modification at 704-409-1614, or tim.wheeler@fontainemod.com – Fontaine Modification Field Service Bulletin Document # FNT-103014025 Page 4 of 8 Rev # – Field Service Bulletin Name: Peterbilt 220 Air Line Relocation 4 Condition D 4.1 Evaluation: 4.1.1 There is evidence of damage (frayed braid or other) to the stainless-steel air line from contact with the suction tube. 4.1.2 If any damage is found, contact Fontaine Modification at 704-409-1614, or Tim.Wheeler@fontainemod.com. If it is determined that the hose needs to be replaced, your local Peterbilt Dealership may need to be contacted. – Fontaine Modification Field Service Bulletin Document # FNT-103014025 Page 5 of 8 Rev # – Field Service Bulletin Name: Peterbilt 220 Air Line Relocation 5 Repair: Standard Repair time is 2.0 hours 5.1 Download the VPD EPR file and submit to the MH Aftermarket Portal. 5.2 Relocate the airline to provide 0.25” minimum clearance to the suction tube. 5.2.1 Remove the VPD cover 5.2.2 Remove the bolt at the bottom of the support bar. – Fontaine Modification Field Service Bulletin Document # FNT-103014025 Page 6 of 8 Rev # – Field Service Bulletin Name: Peterbilt 220 Air Line Relocation 5.2.3 Remove the plate and cables where the support bar was connected. 5.2.4 Remove the bolt securing the p-clamp and discard the “L” bracket. – Fontaine Modification Field Service Bulletin Document # FNT-103014025 Page 7 of 8 Rev # – Field Service Bulletin Name: Peterbilt 220 Air Line Relocation 5.2.5 Swap the orientation of the p-clamp and bolt it to the frame using the existing hole. 5.2.6 Reassemble the ground cable plate, and VPD covers. Verify there is at least 0.25” between the suction tube and the braided airline. 5.3 If Condition C exist: If any damage is found, contact Elgin at 877-800-1111 and Fontaine Modification at 704-409-1614, or Tim.Wheeler@fontainemod.com. If replacement of the suction tube is required, follow the Marmon-Herrington Work Instructions WI-0282 Rev – A attached below. 5.3.1 Replacement of the tube requires oil replacement. 5 gallons of Shell Spirax S4 TXM / Mobil 454 should be used. 5.4 If Condition D exist: If any damage is found contact Fontaine Modification Co at 704-409- 1614 or email tim.wheeler@fontainemod.com . If it is determined that the hose needs to be replaced, your local Peterbilt Dealership will need to be contacted. 5.5 Determine if Elgin Service Bulletin SB-0235C and SB-0238D have been completed. If not, this is a good time to complete while the oil is drained. 5.6 Evaluate the VPD oil condition during suction tube replacement. Check for debris and foreign material. If any foreign material is present, contact Elgin Service at 877-800-1111. Verify at least 0.25” between the line and the suction tube. – Fontaine Modification Field Service Bulletin Document # FNT-103014025 Page 8 of 8 Rev # – Field Service Bulletin Name: Peterbilt 220 Air Line Relocation 5.7 Operate the VPD in “Road Mode” per the attached “Crosswind 1 Service – VPD Mode and Mode Select” 5.7.1 Drive unit on roadway and reach top speed of 59 mph. 5.7.2 Confirm there are no issues with driving the vehicle. 5.8 Operate the VPD in “Work Mode/Sweep Mode” per the attached “Crosswind 1 Service – VPD Mode and Mode Select” 5.8.1 Engage Work Mode. 5.8.2 Engage Sweep Mode. 5.8.3 Turn on Side Brooms, Lower the Pickup Head, and Turn on Water Functions. 5.8.4 Adjust engine speed to max (2000 engine RPM) using the throttle on the sweeper console. 5.8.5 Operate unit for at least an hour, until machine reaches operating temperature. 5.9 Confirm no leaks or error codes are present. 5.10 Please send an invoice and the photos of the repaired line to Tim.Wheeler@fontainemod.com for payment. 5.11 SRT Relocate Stainless Steel Air Line 5.11.1 2.0 Hours 5.12 SRT Replace VPD Suction Tube 5.12.1 2.0 Hours. • 5mm allen socket • Torque wrench • 41mm open wrench • Personal Protective Equipment: – Safety Glasses – Steel Toe Boots – Gloves 7/1/21 WI-0282 Rev – B 1 Approval By: Engineering Quality Operations Safety Operator Work Instructions VPD Suction Tube • Tools 7/1/21 WI-0282 Rev – B 2 • Grease and install 28×3.5 O-ring (MT945541) into groove in flange Operator Work Instructions VPD Suction Tube 7/1/21 WI-0282 Rev – B 3 • Install pickup tube (1250001058) to pump and VPD housing. • !!MAKE SURE TUBE IS PUSHED IN AS FAR AS POSSIBLE!! • Tighten nut (MT951152) and ferrule (MT951153) until light wrench resistance is felt. Tighten another 5 wrench flats (300°). Ferrule must be installed as shown Operator Work Instructions VPD Suction Tube PUSH 7/1/21 WI-0282 Rev – B 4 • Apply Loctite 243 to M6x12 screw (MT945545). • Install with 5mm allen socket and and M6 washer (MT945544). • Torque to 10 Nm. • Mark head of fastener with paint pen as it is torqued. Operator Work Instructions VPD Suction Tube 2022May09 MM2VPDB 6 3 General Service Work 3.1 Oil Fill/Drain Procedure 3.1.1 Oil Draining To drain VPD oil, remove drain plug using 10 mm hex key from bottom of VPD (item 40). Reinstall plug after oil has drained, torquing to 70 Nm (50 ft lbs) 3.1.2 Oil Filling Procedure The VPD is filled with oil through a plug (item 20) on the top of the central housing. Remove plug with 10mm hex key wrench. 2022May09 MM2VPDB 7 Oil capacity is approximately 5 gallons (oil cooler, hoses, etc. included), but oil level should be checked with oil level gauge on side of central housing. Oil level is checked with engine running at idle (<1000 rpm) with VPD in road mode. Oil temperatures should be around 60°C (140° F). Add or remove as necessary when oil is cold and engine is not running. 3.1.3 Acceptable Oil The VPD requires use of specialized lubricants designed for use with hydrostatic pumps, motors, and wet clutches. A list of acceptable lubricants can be found below. • SHELL SPIRAX S4 TXM • BP AGRI SUPER UNIVERSAL 10W-40 • CASTROL AGRI MP PLUS 10W-40 • KUWAIT PETROLEUM Q8 T 1000 D SAE 10W-30 • MOTUL SUPER AGRI 10W-30 • PETRONAS LUBRICANTS MULTI VT (SAE 10W-30) • SHELL SPIRAX S4 TX • SHELL SPIRAX S4 TXM • SHELL SPIRAX S4 CX Crosswind 1, Rev B, Work and Road Mode 19 WORK AND ROAD MODE The Crosswind 1 uses the chassis engine to power both the chassis and the sweeper components. VARIABLE POWER DIVIDER (VPD) SYSTEM CONTROLS The Crosswind Single Engine Sweeper uses a console panel (Fig. 10: VPD Controls) for control of the Single Engine Sweeping System. The VPD specific controls are: • Chassis – Mode Select • Work Throttle • Sweeper – Mode Select • Fan Speed Tachometer Chassis – Mode Select Button/Indicator Light The Chassis – Mode Select button (Fig. 11: Chassis Mode Select Button) includes an indicator light. This button allows the operator to switch between ROAD and WORK modes. Pressing the button while in ROAD mode engages WORK mode—provided the appropriate conditions exist for a mode change. Pressing the button while in WORK mode returns the sweeper to ROAD mode. Chassis Modes ROAD: Indicator light is OFF and chassis drive functions are normal. WORK: Indicator light is ON and VPD System is active. ACTIVE FAULT: A flashing CHASSIS – MODE SELECT indicator light can occur for several reasons: a. The chassis key has been turned to the ON position but the engine has not been started. b. Mode Engage/Change: A flashing indicator light can be indicative of an unsuccessful mode change. Verify mode change conditions have been met and attempt mode change again. If mode change is still unsuccessful, cycle the chassis key OFF/ON and repeat Mode Change steps. If the light continues to flash, an active fault condition exists. Notify service. c. During Sweep Operation – If the indicator light begins to flash, an active fault is present in the VPD control system. Contact the Elgin servicing dealer for diagnosis of the fault. NOTE The Chassis Mode Indicator Light flashes when the chassis ignition is ON but the engine is not running. The light indicates the selected mode once the engine is running. The mode always defaults to ROAD mode when the ignition is turned OFF. NOTE In conditions where the engine RPM is greater than 800, it is not possible to transition to WORK mode. For example, if you are starting a cold engine, the engine controller accelerates the RPM to warm the engine. Also, during a regen of the chassis engine, the engine controller maintains the engine RPM above 800. If the engine is performing a regen in WORK mode, you will not be forced into ROAD mode. But, you cannot transition into WORK mode while the engine controller is maintaining an RPM greater than 800. Fig. 10: VPD Controls Fig. 11: Chassis Mode Select Button SERVICE : CLOUD 20 Crosswind 1, Rev B, Work and Road Mode Sweeper – Mode Select Switch NOTE When the chassis is cycled on/off, the mode defaults to TRANSPORT. • SWEEP: From TRANSPORT mode, press the left side of the MODE SELECT switch to select SWEEP mode and begin sweeping operations (Fig. 12: Sweeper Mode Select). The Sweep Mode icon illuminates. • TRANSPORT: From SWEEP mode, press the right side of the MODE SELECT switch to return TRANSPORT mode. Sweeper functions are disabled and the Transport Mode icon illuminates. Sweeper functions will be disabled. • DUMP: Press the right side of the MODE SELECT switch to select DUMP mode. An indicator light in the MODE SELECT switch illuminates to display successful selection. The Sweeper fan will be disabled but the hopper dump controls will be enabled. NOTE Dump the hopper in chassis WORK mode and sweeper DUMP mode. The sweeper fan will not run when in DUMP mode. Work Throttle Control When WORK mode is selected (VPD enabled), the chassis engine speed is controlled by the WORK THROTTLE thumb wheel control (Fig. 13: Work Throttle). NOTE Turn the thumb wheel to DUMP to dump the hopper. In order for the sweeper to travel, set the thumb wheel to a setting between slow (turtle) and fast (rabbit). NOTE In WORK mode, chassis engine speed will not exceed 2000 RPM. Sweeper Fan Speed (Tachometer) With WORK mode and SWEEP mode selected, sweeper fan speed will be displayed (Fig. 14: Fan Speed Tachometer). An LCD screen in the tachometer will also display sweeper status information. Fig. 12: Sweeper Mode Select Fig. 13: Work Throttle Fig. 14: Fan Speed Tachometer SERVICE CLOUD

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IMPORTANT SAFTEY RECALL 22V-757 This notice applies to your vehicle, VIN ????? October 2022 Owner Nabe Street Address City, State Zip Dear Elgin Customer: REASON FOR Recall Fontaine Modification® has decided that a defect which relates to the installation of the Variable Power Divider (VPD) exists in certain Elgin® Crosswind 1® and Elgin Whirlwind 1® sweepers manufactured from December 2018 through June 2022 with Peterbilt chassis. The chassis engine air compressor stainless steel braided supply line may rub through the oil suction tube running from the VPD sump to the hydrostatic pump. If the suction tube fails, cavitation to the hydrostatic pump will occur and cause severe damage to the hydrostatic system. This could cause the vehicle to move at limited speed, increasing the risk of a crash. All Elgin® Crosswind 1® and Elgin® Whirlwind 1® sweepers built between June 2019 and May 2022 will need to be repaired to resolve this issue. WHAT WE WILL DO A recall has been issued for your Elgin® Crosswind 1® and/or Elgin Whirlwind 1®sweeper. Fontaine Modification® will cover the cost to relocate the compressor stainless steel airline away from the veritable power divider. Please note: Because this issue can result in severe system failure and render the truck out of service for an extended period of time, this recall needs to be performed immediately. Fontaine strongly recommends that your unit is inspected/repaired before 1/31/2023 due to the potential damage to the VPD. This will help with your unit not being out of service an extended amount of time. WHAT YOU SHOULD DO Please contact Fontaine Modification® at 800.989.2113 or tim.wheeler@fontainemod.com., you can additionally contact your local Elgin Sweeper® dealer to schedule a service date to relocate the chassis engine air compressor supply line and inspect the hydraulic suction tube for the VPD hydrostatic system. Your sweeper should not be operated, if the air compressor line or if the suction tube is damaged allowing air to enter the hydraulic system. Contact Fontaine Modification® for assistance at 800.989.2113 or tim.wheeler@fontainemod.com. Instructions for making this repair have been sent to your Elgin Sweeper® dealer and the parts are available. Repair time will vary dependent on the complexity of the repair. A minimum of two hours is required to reroute the airline. Additional time to replace the hydraulic tube and chassis airline could lead to your unit being out of service for several days at the Elgin Sweeper® dealer. Please ask your dealer if you would like to know if additional time is required after relocation of the air line, for any additional repairs needed. Any lessor who receives a notification of a determination of a safety-related defect or noncompliance pertaining to any leased motor vehicle shall send a copy of such notice to the lessee of a leased motor vehicle, by first-class mail to the most recent lessee known to the lessor. Such notification shall be mailed within ten days of the lessor’s receipt of the notification from the vehicle manufacturer. This requirement applies to both initial and follow-up notifications but does not apply where the manufacturer has notified a lessor’s lessees directly. If Fontaine is unable to arrange service as described above without charge, you may submit a complaint to the Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue, S.E., Washington, DC 20590 or call toll-free Auto Safety Hotline at 1-888- 327-4236 (TTY 1- 800-424-9153); or go to http://www.safercar.gov. Your Elgin Sweeper® dealer is best equipped to obtain parts and provide service to ensure that your Elgin® Crosswind 1® and/or Elgin Whirlwind 1® sweeper is repaired as promptly as possible. We regret any inconvenience that this action may cause you. Sincerely, Tim Wheeler Warranty Manager Fontaine Modification®

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SAFETY RECALL NOTICE October 2022 Dear Elgin Sweeper Dealer: This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act. Fontaine Modification® has decided that a defect which relates to the installation of the Variable Power Divider (VPD) exists in certain Elgin® Crosswind 1® and Elgin Whirlwind 1® sweepers manufactured from December 2018 through June 2022 with Peterbilt chassis. The chassis engine air compressor stainless steel braided supply line may rub through the oil suction tube running from the VPD sump to the hydrostatic pump. If the suction tube fails, cavitation to the hydrostatic pump will occur and cause severe damage to the hydrostatic system. This could cause the vehicle to move at limited speed. All Elgin® Crosswind 1® and Elgin® Whirlwind 1® sweepers built between June 2019 and May 2022 with Peterbilt chassis will need to be repaired to resolve this issue. WHAT WE WILL DO Fontaine Modification® will cover the cost to relocate the engine air compressor stainless steel braided supply line away from the VPD oil suction tube. The standard repair time is 2.0 hours for a standard unit with no auxiliary water tanks or platforms mounted behind the cab. Fontaine will allow an additional 1.5 hours to remove and replace water tanks. Please note: Because this issue can result in severe system failure and render the truck out of service for an extended period of time, this recall needs to be performed immediately. Fontaine strongly recommends that all units are inspected/repaired before 1/31/2023 due to the potential damage to the VPD. This will help with your customer’s unit not being out of service an extended amount of time. WHAT YOU SHOULD DO If you are contacted by a customer for this recall, please contact Fontaine Modification® at 800.989.2113 or tim.wheeler@fontainemod.com with the last eight of the VIN of the chassis, to receive an warranty authorization number. Inspect the engine air compressor stainless steel braided supply line, to verify if it is touching the VPD oil suction tube. Please document the before and after of the relocation of the air line with pictures to send with invoice to Fontaine. See the attached work instructions for relocating the engine air compressor stainless steel braided supply line. Please inspect the VPD oil suction tube for any damage before removal.

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-757 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Fontaine Modification Submission Date : OCT 10, 2022 NHTSA Recall No. : 22V-757 Manufacturer Recall No. : NR Manufacturer Information : Manufacturer Name : Fontaine Modification Address : 9827 Mt. Holly Road Charlotte NC 28214 Company phone : 7043911355 Population : Number of potentially involved : 56 Estimated percentage with defect : 98 % Vehicle Information : Vehicle 1 : 2020-2023 Peterbilt 220 Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : 2-DOOR Power Train : DIESEL Descriptive Information : Fontaine Modification® has determined that a defect that relates to the installation of the Variable Power Divider (VPD) exists in certain Elgin® Crosswind 1® and Elgin Whirlwind 1® sweepers manufactured from December 2018 through June 2022 with Peterbilt chassis. The chassis engine air compressor stainless steel braided supply line may rub through the oil suction line running from the VPD sump to the hydrostatic pump. If the suction line fails, cavitation to the hydrostatic pump will occur and cause severe damage to the hydrostatic system. This could cause the vehicle to move at a limited speed. All Elgin® Crosswind 1® and Elgin® Whirlwind 1® sweepers built between June 2019 and May 2022 will need to be repaired to resolve this issue. Production Dates : OCT 04, 2018 – MAR 18, 2022 VIN Range 1 : Begin : 3BPPHM7X0MF594047 End : 3BPPHM7XXLF593227 ✔ Not sequential Description of Defect : Description of the Defect : The chassis OEM engine air compressor stainless steel braided supply line may rub through the oil suction tube running from the VPD sump to the hydrostatic pump. FMVSS 1 : 121 – Air brake systems FMVSS 2 : NR Description of the Safety Risk : If the oil suction tube running from the VPD sump to the hydrostatic pump fails, cavitation to the hydrostatic pump will occur and cause severe damage to the hydrostatic system. This could cause the vehicle to move at a limited speed. Part 573 Safety Recall Report 22V-757 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Description of the Cause : During the installation of the Variable Power Divider (VPD) the oil suction tube running from the VPD sump to the hydrostatic pump tube may come in contact with the chassis engine air compressor stainless steel braided supply line. The stainless steel braided supply line may rub a hole in the oil suction tube and cause the vehicle to move at a limited speed. Identification of Any Warning that can Occur : A small hole in the oil suction tube running from the VPD sump to the hydrostatic pump may not cause a loss of vehicle performance. A small hole will cause aeration of the oil and cavitation within the pump may cause significant damage to the charge pump. The operator may be able to recognize an unusual audible noise. A large hole will cause performance issues and severe damage to the hydrostatic system. Involved Components : Component Name 1 : Stainless Steel Braided Air Line Component Description : Air Compressor Discharge Air Line Component Part Number : G50-6000-032 Component Name 2 : Suction Tube Component Description : VPD Hydraulic Suction Tube Component Part Number : 1250001058 Supplier Identification : Component Manufacturer Name : NR Address : NR NR Country : NR Chronology : Fontaine received notification from Marmon Herrington of a unit that had a defective pump and motor. Fontaine installed the Variable Power Divider (VPD) on this unit. During the investigation of the root cause of the failure, it was found that the OEM stainless steel braided air compressor supply line was laying on top of the VPD hydraulic oil suction tube. This unit was in service for over 3 years with the stainless steel braided air Part 573 Safety Recall Report 22V-757 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 compressor supply line in contact with the VPD hydraulic oil suction tube and wore a small hole in the suction tube. This caused air to enter the sealed hydraulic system causing damage to the pump and motor of the VPD. Description of Remedy : Description of Remedy Program : Variable Power Divider (VPD) was installed on Peterbilt 220 chassis and there was not sufficient clearance between the OEM stainless steel braided air compressor supply line and the VPD oil suction tube. Over time, the stainless steel braided air compressor supply line has the potential to wear a hole in the VPD oil suction tube and reduce the ground speed of the vehicle, and/or even possibly damage the stainless steel braided air compressor supply line. How Remedy Component Differs from Recalled Component : Fontaine has created a Field Service Bulletin (FNT-103014025) showing the potential of the OEM stainless steel braided air compressor supply line coming in contact with the VPD hydraulic oil suction tube and instructions for the proper relocation of the airline to prevent contact with the oil suction tube. During the relocation of the airline, we require the repair facility to inspect the airline and oil suction tube for possible damage. When all repairs are completed the repair facility will send an invoice for the material and labor for reimbursement as well as a picture of the repair. Field Service Bulletin includes the Standard Repair Times for each repair if needed. Identify How/When Recall Condition was Corrected in Production : Upon being reworked, the OEM stainless steel braided air compressor supply line is rerouted away from the VPD oil suction tube and secured to the chassis frame with a P-clip, thereby eliminating the risk of either component coming in contact with each other. Recall Schedule : Description of Recall Schedule : Fontaine does not have “Dealers”, however, we will be sending a letter to all of the Elgin Sweeper Company’s dealers with a copy of our Field Service Bulletin showing how to properly inspect and relocate the OEM stainless steel braided air compressor supply line and VPD oil suction tube for damage. The dealer Notification letters will be mailed/emailed by 10/17/2022. We will also send Owner notification letters to owners/ end-users using Elgin Sweeper Company’s warranty registration information to obtain the addresses of the owners/end-users. The Owner Notification letters will be sent by 11/04/2022. Planned Dealer Notification Date : NR – NR Planned Owner Notification Date : OCT 17, 2022 – NOV 04, 2022 * NR – Not Reported

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