22E073 – Steering Gear Assembled Incorrectly – Oshkosh Shepphard Gears

SEOCONTENT-START

1
SAFETY NOTICE
Vehicle Safety Recall – Technical Service Bulletin
PROMPT ACTION REQUIRED Attention: Subject:
Models Affected: Equipment Affected: Date: Oshkosh Product Owner Sheppard™ Steering Gear
Legacy Oshkosh S-Series Front Discharge Mixer
Sheppard Steering Gear purchased between 06/2021 and 10/2022 October 2022
VSR-TSB-039
NHTSA Campaign Number: 22E-073
Purpose: A concern affecting safety exists in some legacy Oshkosh S-Series Front Discharge Mixers. Sheppard steering gears have been identified that may have a potential defect and need replacing. The suspect steering gears were sold through aftermarket, installed at a service center, or installed on a refurbished vehicle. This bulletin provides instruction on inspecting the steering gear and steps required if the steering gear requires replacement. Affected Vehicles:
The affected equipment population was sold or installed between June 2021 and September 2022.
Please refer to the attached serial number list of affected steering gears . Perform the procedure to and make a warranty claim against only the vehicles on this steering gear serial number list. Time Completion:
Complete the enclosed procedure for each affected truck. The time of accomplishment may vary due to a number of factors; however, the estimated time for steering gear inspection is 1.0 hour, and if required 4.0 hours for steering gear replacement. Required Action:
Review your equipment and verify your ownership of affected steering gear(s) or vehicle serial number(s). Oshkosh records indicate that you are the owner of one or more vehicles with an affected steering gear, or have purchased one or more affected steering gears. A list of affected vehicle Serial Numbers or order numbers is enclosed Please be reminded that it is a violation of Federal law for you to sell or lease the vehicles covered by this notification until this recall has been performed on these vehicles.
Substantial civil penalties apply to violations of this law. Reimbursement of Costs:
Affected trucks shall be inspected using the customer’s own qualified service technicians – at no cost to the owner. The inspection should take approximately 1.0 hour. Replacement of affected steering gear should take approximately 4.0 hours.
Parts/Labor Reimbursement:
In order to receive credit, claims are to be submitted through the normal warranty claim system. Claims must be received within 30 days of the repair. Claims must include the Oshkosh VIN of the vehicle, the
customer asset number, and the number of this bulletin. Contacts:
If you have questions or need further information, please contact S-Series Service Support at 888-686-7278
Enclosures:
Procedure
Serial Number List of Affected Steering Gears Reference Part Numbers
Item Part Number Description Qty.
1 111317A SCR,FLG,HEX 0.62-11X2.25 G8 PO 3
2 120622A SCR,FLG,HEX 0.62-11X2.50 G8 PO 3
3 110311A NUT,FLG,LKSP .62-11 G8 PO 6
4 3875726 STEERING GEAR,XD120,NP SHAFT 1 SAFETY NOTICE
Perform your company’s Lockout/Tagout procedure. If your company does not have a Lockout/Tagout procedure, follow OSHA 1910.147 and 1910.146 Confined Space as appropriate. SAFETY NOTICE
Use appropriate Personal Protective Equipment (PPE) as required by your company. WARNING
Hydraulic systems are hot. DO NOT TOUCH! Serious personal injury may result from hot oil. When you have completed working on the hydraulic systems, thoroughly clean any spilled oil from the equipment. Do not spill any hydraulic fluids on the ground. Clean any hydraulic fluids from your skin as soon as you have completed your maintenance and repairs. Dispose of used oil and filters as required by law. WARNING
Hydraulic systems operate under high pressure—only experienced persons should attempt repairs or troubleshooting on hydraulic systems. WARNING
Never remove hydraulic pipes/tubing, fittings, and adapters until all pressure has been relieved from the hydraulic system. WARNING
All hydraulic pressures must be relieved from the hydraulic system prior to removing any components from the system to prevent oil from spraying or functions and systems
from failing. PROCEDURE
Preparation and Inspection
1. Park vehicle on flat, level surface. Perform your company’s Lockout/Tagout procedure. If your company does not have a Lockout/Tagout procedure, follow OSHA 1910.147 and 1910.146 Confined Space as appropriate. Chock wheels.
2. Battery Disconnect Switch
The vehicle’s BATTERY DISCONNECT switch is located on the left-hand side of the battery box. Use the battery disconnect switch when performing any maintenance so the vehicle cannot accidentally be started. If the vehicle is not equipped with a battery disconnect switch, disconnect the engine starting batteries.
a. Turn the battery disconnect switch (Figure A, Item 1) counterclockwise so the hole on the switch aligns with the hole in the bracket (Figure A, Item 2). 2 b. Install the safety lockout device ring (Figure B, Item 1) through the holes on the battery disconnect switch and the bracket.
c. Install a padlock (Figure B, Item 2) onto the safety lockout device ring, lock it, and put the key in your pocket. If more than one person is working on the vehicle, each person must install his or her own padlock. 1
1 NOTE 2
Figure A 2
Figure B If the serial number cannot be easily read due to paint, gently scrape the number(s) with a flathead screw driver, wire brush, emery cloth, or apply acetone.
3. Locate the steering gear serial number engraved into the steering gear housing. See Figure 1. Sheppard specific information can be found at https://recall.rhsheppard.com/USA/en/USD.
If the steering gear serial number matches one of the serial numbers in the Figure 1 table continue to Step 4.
If the steering gear serial number does not match one of the serial numbers in the Figure 1 table the inspection is complete and no further action is required. Steering Gear Serial Numbers
21E08036 21G08991
21E08047 21G08992
21E04193 21G08995
21E08046 21G08987
21F13807 21G08988
21F13813 21G08990
21F13816 21J05621
21G08983 21J05618
21G08985 21J13027
21G08986 21J13033
21G08989 Figure 1 3
Part Number Serial Number 3 Steering Gear Removal
4. Loosen and remove nut and screw securing drag link to pitman arm. See Figure 2.
5. Remove drag link from pitman arm. Swing drag link away from steering gear.
6. Slightly loosen the two hydraulic lines connected to steering gear to relieve any pressure that may be in the lines. See Figure 2.
7. Loosen and remove two hydraulic lines connected to steering gear. See Figure 2. Cap or seal ends of hydraulic lines to prevent hydraulic system contamination. Drag Link Screw and Nut Figure 2 Hydraulic Lines 8. Loosen and remove screw and nut securing yoke to steering gear output shaft. See Figure 3.
9. Slide yoke off steering gear output shaft. Figure 3 Screw and Nut 4 CAUTION
The steering gear and bracket weigh approximately 210 lbs. Use a lifting device and support steering gear before removing bracket mounting bolts. Failure to comply could cause personal injury and damage to equipment.
10. Remove the six huck bolts securing steering gear and bracket to frame rail. See Figure 4. Huck Bolts Figure 4 11. Remove steering gear and bracket from vehicle and place on workbench with bracket up. See Figure 5. Figure 5 5 CAUTION
The pitman arm will be extremely tight. Do not use a hammer or apply heat to the arm. Damage to the sector shaft, pitman arm or seals can result.
12. Bend the restraining tabs out of the pitman arm retainer using a punch. See Figure 6.
13. Lubricate face of the retainer with clean chassis lube to aid in removal. See Figure 6.
14. Slide pitman arm puller over pitman arm. Make sure to align the hole in the puller to the retainer Allen socket.
15. Insert Allen drive socket through puller and into retainer socket.
16. Back off the retainer using an impact wrench. Removing the retainer will act as a jack screw to remove the pitman arm. Save pitman arm for installation on new steering gear. Retainer Restraining Tabs Pitman Arm Washer Figure 6 6 17. Loosen and remove the six bolts and washers securing mounting bracket to steering gear. See Figure 7. Save bolts and washers and mounting bracket.
18. Remove hydraulic fittings and bracket from steering gear. See Figure 7. Save hydraulic fittings and bracket. Bolts and Washers Mounting Bracket Figure 7 Hydraulic Fittings Bracket Steering Gear Installation
19. Install hydraulic fittings and bracket removed in Step 18 in new steering gear. See Figure 7. 20. Install mounting bracket removed in Step 17 on new steering gear. 21. Clean threads of mounting bolts removed in Step 17 and apply Loctite® 242 to threads of six bolts. 22. Secure mounting bracket to steering gear with six bolts and washers removed in Step 17. See Figure 7. Final tighten mounting bolts to 330 ft. lbs. using torque sequence in Figure 8. Figure 8 23. Install washer on sector shaft. See Figure 9. 24. Install pitman arm on steering gear. Align timing mark on steering shaft with pitman arm timing mark labeled “F” when pitman arm is installed. See Figure 9. 25. Apply never-seize to threads of pitman arm retainer, both sides of tab washer, and mating face of retainer. 7 26. Install tab washer. See Figure 9. 27. Install retainer and final tighten to 550 ft. lbs. using a torque wrench. See Figure 9. Do not use an impact wrench to final tighten retainer. WARNING
Do not back off the torque value to align the tabs. Backing off from the specified torque value could result in a loose pitman arm or loss of steering control resulting in serious injury or death.
28. Continue torquing retainer past 550 ft. lbs. until two of the notches in the retainer align with the tabs of the washer. 29. Use a punch and hammer to bend restraining tabs of the washer into the notches of the retainer. WARNING
Once the retainer is torqued DO NOT
re-torque the retainer. Constant torquing of the retainer can cause a loose pitman arm or loss of steering control resulting in serious injury or death. Retainer Restraining Tabs Pitman Arm Washer Figure 9 8 CAUTION
The steering gear and bracket weigh approximately 210 lbs. Use a lifting device and support steering gear when installing mounting bracket mounting bolts. Failure to comply could cause personal injury and damage to equipment.
30. Mount steering gear assembly to frame rail with three 0.62-11 x 2.25 inch (111317A) and three 0.62-11 x 2.50 inch (120622A) grade 8 bolts and six spiral lock nuts (110311A). See Figure 10. Using a torque wrench, final tighten mounting hardware to 210 ft lbs. 0.62-11 x 2.50” Figure 10 0.62-11 x 2.25” 31. Reinstall yoke on steering gear output shaft. See Figure 11. 32. Install screw and nut removed in Step 8 in yoke on output shaft. See Figure 11. Final tighten to 75 ft. lbs. Figure 11 Yoke Screw and Nut 33. Connect the two hydraulic lines disconnected in Step 7 to steering gear. See Figure 12.
34. Install drag link to pitman arm. See Figure 12. 9 35. Install screw and nut in pitman arm to secure drag link. See Figure 12. Final tighten to 170 ft. lbs. Drag Link Screw and Nut Figure 12 Hydraulic Lines 36. Remove lockout/tagout and wheel chocks. Steering Gear Relief Valve Plunger Adjustment Procedure
NOTE
Turning the plungers in will increase the space between the axle and the stops. Turning the plungers out will decrease the clearance. Do not turn the slotted plunger out beyond flush with the plunger boss or a leak will occur. If necessary, lengthen or shorten the drag link and repeat the procedure.
1. Connect a pressure gauge capable of 2,200 PSI (15,168 KPA) to the inlet side of the steering gear. 2. Verify plungers are turned all the way in. The gear should be shipped in this configuration. Start engine and operate at idle speed. 3. With vehicle weight on the front tires (put LSTA equipped vehicles in Down-Empty setting.) Turn the wheel fully in one direction until the axle stop is contacted in that direction. Note the pressure, this will be the relief pressure of the gear. Back the appropriate plunger out until the gauge reads 1000 psi (DO NOT exceed this pressure).
If the axle stops cannot be contacted, note the pressure when the wheels stop turning. This will be the relief pressure of the gear. Back the appropriate plunger out until the axle stop makes contact. Continue backing the plunger out until the gauge reads 1000 psi (DO NOT exceed this pressure). 4. While maintaining steering effort, start to turn the plunger back in. The pressure will drop as the plunger
is turned. Stop when the pressure noted in Step 3 (the relief pressure) is reached, then turn the plunger in two more full turns. 10 5. Turn the wheels fully in the other direction and repeat steps 3 and 4 for the other plunger. 6. The axle stops will now be set. Contact of the axle stops may still be possible with the vehicle in the unloaded condition. When loaded, proper axle stop gaps of approximately 1/8” will exist. Left-Hand Turn Plunger Right-Hand Turn Plunger Figure 13 Steering Gear Bleeding Procedure
1. Park vehicle on a clean, dry, solid surface, preferably concrete. 2. Place transmission in neutral (N), set the parking brake, turn engine off, and chock the rear wheels. 3. Make sure hydraulic fluid level in the hydraulic tank is at the full mark. 4. Start engine, let it idle for two minutes without steering the steering wheel then shut the engine off. 5. Make sure the steering hard stops are in place. 6. Start the engine and steer the steering wheel from full left to full right several times. 7. Point the vehicle’s wheels in the straight ahead position. NOTE
Do not turn the steering wheel with the bleeder screw open.
8. Loosen the manual bleed screw 2-3 turns. 11 12
Continuous Improvement:
The change included in this document is part of the McNeilus Continuous Improvement Process.
McNeilus’s quality policy is providing customer satisfaction through innovative products, dedicated service, and a constant focus on continuous improvement.
(888) 686-7278
www.streetsmartparts.com
9. Allow air and aerated fluid to bleed out until the fluid appears without bubbles. If the bleed screw is not visible, allow the system to bleed until fluid drains from the bleed screw.
10. Close the bleed screw. 11. Repeat Step 6-10 until no aeration is found in the bleed oil. 12. Check the hydraulic reservoir fluid level and refill if required. 13. Turn vehicle engine off and remove wheel chocks.
Figure 14
Bleeder
Screw

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Oshkosh Corporation
2307 Oreg n St., Oshkosh, WI 54902 • (920) 235-9150
October 2022
IMPORTANT SAFETY RECALL 22E-073
Dear Oshkosh Vehicle Owner:
Ref: NHTSA Steering Gear Assembled Incorrectly 22E-073
VIN(s) or Order Number(s): <>
This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act. Oshkosh has decided that a defect which relates to motor vehicle safety exists in parts purchased for your Oshkosh S-Series Front Discharge Mixer. These parts were purchased between June, 2021-September, 2022 from MTM as service parts, in conjunction with a refurb, box frame or other service work.
Why is a recall being conducted?
A small number of steering gears were assembled without the required number of recirculating balls. The recall population was determined by identifying the oldest production lot associated with a gear failure, and including all production from that lot to the date in February 2022 when the improvements in the assembly process were instituted.
What are we doing about the problem?
Oshkosh will provide customers with Instructions on how to inspect for suspect serial numbers. If suspect part is found, customers would purchase the parts, perform the repairs, and then file parts/labor reimbursement through normal warranty process. Customers can also contact their nearest Oshkosh/McNeilus Service Center to schedule this inspection/repair at no charge.
! I M P O R T A N T !
⮚ Your Oshkosh vehicle is being recalled.
⮚ Contact Oshkosh at 1-888-686-7278 for any questions.
⮚ This recall repair will result in no cost to you. Oshkosh Corporation
2307 Oreg n St., Oshkosh, WI 54902 • (920) 235-9150
What should you do?
• Inspection should take less than 1.0 hours.
• Repairs should take less than 4.0 hours.
• Customers can also contact their nearest Oshkosh/McNeilus Service Center to schedule this inspection/repair at no charge
What if you no longer own this vehicle?
If you no longer own this vehicle, please contact Oshkosh at 1-888-686- 7278 to assist us in updating our records. Who should you contact if you have further questions or concerns? If you have further questions, please contact Oshkosh at 1-888-686- 7278 to allow us to assist you. If you have leased this vehicle to another person, federal regulations require you to send a copy of this notice to your lessee by first-class mail within ten days of your receipt of this notice. If Oshkosh fails or is unable to remedy this defect without charge and within a reasonable time, you may submit a written complaint to: The Administrator, National Highway Traffic Safety Administration 1200 New Jersey Avenue, 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. We apologize for any inconvenience this safety recall may cause, but your safety is our first concern.
Sincerely,
OSHKOSH CORPORATION

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OMB Control No.: 2127-0004
Part 573 Safety Recall Report 22E-073
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
Oshkosh Corporation SEP 19, 2022 NHTSA Recall No. : 22E-073 Manufacturer Recall No. : NR Manufacturer Information :
Manufacturer Name : Oshkosh Corporation Address : 2307 Oregon Street
PO Box 2566 Oshkosh WI 54903-2566
Company phone : 920-235-9151
Population :
Number of potentially involved : 143 Estimated percentage with defect : 1 %
Equipment Information : Brand / Trade 1 :
Model : Sheppard Gear XD120P Part No. : 3875726 Size : NR Function : NR
Descriptive Information : A small number of steering gears were assembled without the required number of recirculating balls. The recall population was determined by identifying the oldest production lot associated with a gear failure, and including all production from that lot to the date in February 2022 when the improvements in the assembly process were instituted. Production Dates : MAY 03, 2021 – AUG 01, 2022
Description of Defect :
Description of the Defect : Steering gear was assembled with fewer than the required number of recirculating balls which can lead to a fracture in the steering gear worm-shaft and loss of vehicle steering. FMVSS 1 : NR FMVSS 2 : NR
Description of the Safety Risk : A steering gear with fewer than the required number of recirculating balls
may bind when loads are applied. In some cases, the balls may align on the same side of the gear’s worm-shaft and concentrated loads may cause the gear’s internal parts to fracture resulting in loss of vehicle steering. Loss of
steering increases the likelihood of a crash. Part 573 Safety Recall Report 22E-073 Page 2 Description of the Cause : An anomaly in the steering gear recirculating ball insertion operation occurred during assembly. Subsequent rework processes and inspections did not detect the missing recirculating balls. Identification of Any Warning
that can Occur : Preceding the internal fracture, the steering may be perceived as strained by the driver. No audible or visual warning is available. Involved Components : Component Name : Steering Gear Component Description : Steering Gear assembly Component Part Number : 3875726 Supplier Identification : Component Manufacturer
Name : RH Sheppard Co., Inc Address : 101 Philadelphia Street
P.O. Box 877 Hanover Pennsylvania 17331
Country : United States Chronology :
2/8/22-Sheppard warranty lab receives a gear built 8/20/2021 with failed worm-shaft. 2/9/22 – warranty lab inspection/disassembly indicates fracture of the worm-shaft and less than the required number of recirculating balls 2/10/22-plant stops production. Additional inspections and process verifications put in place. Clean point is established. Material on hand is inspected and confirmed defect free. Production resumes. (2/10/22 – 5/13/22): review of all warranty from 2015-present indicated no similar failure ever received.
Engineering tests are performed to understand and to reproduce failure mode. 3/10/2022 – Sheppard contacted vehicle driver for description of event and confirmed no accident or injury, low speed and while backing up. 4/12/22 – Sheppard receives a second gear at incoming shipping facility 5/5/22- Sheppard warranty lab receives/inspects/disassembles the second gear built on 6/26/21 with failed worm-shaft and less than the required number of recirculating balls 5/6/22- The Product Integrity Committee meets for update on the product investigation. 5/13/22 – The Product Integrity Committee meets and recommends submission of a defect report 573. The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 22E-073
Page 3
The information contained in this report was submitted pursuant to 49 CFR §573
Description of Remedy :
Description of Remedy Program : RH Sheppard will provide remedy instructions for (1) Identifying the
serial number on the steering gear (2) Inspecting the serial number in order to classify it as “good”, “suspect”, or “not found” and (removing and replacing the suspect gear. RH Shepard will cover the labor cost involved in the inspection of gears which classify as “good”. RH Shepard will cover labor cost involved for serial number inspection, gear removal, and replacement for gears which classify as “suspect”. If a gear is classified as “not found” then RH Shepard will require the individual conducting the inspection to contact the Sheppard Steering Gear Recall Product Action Center. How Remedy Component Differs from Recalled Component :
Identify How/When Recall Condition was Corrected in Production : The remedied component will have the correct number of recirculating balls.
On Feb 10, 2022 the recirculating ball insertion process control was enhanced. Additional process controls and inspectors were added to the process to verify that the correct number of recirculating balls in each steering gear. Recall Schedule :
Description of Recall Schedule : Notifications to customers will be made via a customer letter. The 577
customer letter will be mailed pending NHTSA approval. Oshkosh S- Series does not have dealers for its products so no Dealer notification is necessary.
Planned Dealer Notification Date : NR – NR
Planned Owner Notification Date : OCT 28, 2022 – OCT 28, 2022 Purchaser Information :
The following manufacturers purchased this defective/noncompliant equipment for possible use or installation in new motor vehicles or new items of motor vehicle equipment:
Name : NR Address : NR
NR Country : NR Company Phone : NR
* NR – Not Reported

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OMB Control No.: 2127-0004
Part 573 Safety Recall Report 22E-073
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
Oshkosh Corporation AUG 30, 2022 NHTSA Recall No. : 22E-073 Manufacturer Recall No. : NR Manufacturer Information :
Manufacturer Name : Oshkosh Corporation Address : 2307 Oregon Street
PO Box 2566 Oshkosh WI 54903-2566
Company phone : 920-235-9151
Population :
Number of potentially involved : 143 Estimated percentage with defect : 1 %
Equipment Information : Brand / Trade 1 :
Model : Oshkosh
S-Series 2.0 Part No. : 3875726 Size : NR Function : NR
Descriptive Information : A small number of steering gears were assembled without the required number of recirculating balls. The recall population was determined by identifying the oldest production lot associated with a gear failure, and including all production from that lot to the date in February 2022 when the improvements in the assembly process were instituted. Production Dates : MAY 03, 2021 – AUG 01, 2022
Description of Defect :
Description of the Defect : Steering gear was assembled with fewer than the required number of recirculating balls which can lead to a fracture in the steering gear worm-shaft and loss of vehicle steering. FMVSS 1 : NR FMVSS 2 : NR
Description of the Safety Risk : A steering gear with fewer than the required number of recirculating balls
may bind when loads are applied. In some cases, the balls may align on the same side of the gear’s worm-shaft and concentrated loads may cause the gear’s internal parts to fracture resulting in loss of vehicle steering. Loss of
steering increases the likelihood of a crash. Part 573 Safety Recall Report 22E-073 Page 2 Description of the Cause : An anomaly in the steering gear recirculating ball insertion operation occurred during assembly. Subsequent rework processes and inspections did not detect the missing recirculating balls. Identification of Any Warning
that can Occur : Preceding the internal fracture, the steering may be perceived as strained by the driver. No audible or visual warning is available. Involved Components : Component Name : NR Component Description : NR Component Part Number : NR Supplier Identification : Component Manufacturer
Name : RH Sheppard Co., Inc Address : 101 Philadelphia Street
P.O. Box 877 Hanover Pennsylvania 17331
Country : United States Chronology :
2/8/22-Sheppard warranty lab receives a gear built 8/20/2021 with failed worm-shaft. 2/9/22 – warranty lab inspection/disassembly indicates fracture of the worm-shaft and less than the required number of recirculating balls 2/10/22-plant stops production. Additional inspections and process verifications put in place. Clean point is established. Material on hand is inspected and confirmed defect free. Production resumes. (2/10/22 – 5/13/22): review of all warranty from 2015-present indicated no similar failure ever received.
Engineering tests are performed to understand and to reproduce failure mode. 3/10/2022 – Sheppard contacted vehicle driver for description of event and confirmed no accident or injury, low speed and while backing up. 4/12/22 – Sheppard receives a second gear at incoming shipping facility 5/5/22- Sheppard warranty lab receives/inspects/disassembles the second gear built on 6/26/21 with failed worm-shaft and less than the required number of recirculating balls 5/6/22- The Product Integrity Committee meets for update on the product investigation. 5/13/22 – The Product Integrity Committee meets and recommends submission of a defect report 573. The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 22E-073
Page 3
The information contained in this report was submitted pursuant to 49 CFR §573
Description of Remedy :
Description of Remedy Program : RH Sheppard will provide remedy instructions for (1) Identifying the
serial number on the steering gear (2) Inspecting the serial number in order to classify it as “good”, “suspect”, or “not found” and (removing and replacing the suspect gear. RH Shepard will cover the labor cost involved in the inspection of gears which classify as “good”. RH Shepard will cover labor cost involved for serial number inspection, gear removal, and replacement for gears which classify as “suspect”. If a gear is classified as “not found” then RH Shepard will require the individual conducting the inspection to contact the Sheppard Steering Gear Recall Product Action Center. How Remedy Component Differs from Recalled Component :
Identify How/When Recall Condition was Corrected in Production : The remedied component will have the correct number of recirculating balls.
On Feb 10, 2022 the recirculating ball insertion process control was enhanced. Additional process controls and inspectors were added to the process to verify that the correct number of recirculating balls in each steering gear. Recall Schedule :
Description of Recall Schedule : Notifications to customers will be made via a customer letter. The 577
customer letter will be mailed pending NHTSA approval. Oshkosh S- Series does not have dealers for its products so no Dealer notification is necessary.
Planned Dealer Notification Date : NR – NR
Planned Owner Notification Date : OCT 28, 2022 – OCT 28, 2022 Purchaser Information :
The following manufacturers purchased this defective/noncompliant equipment for possible use or installation in new motor vehicles or new items of motor vehicle equipment:
Name : NR Address : NR
NR Country : NR Company Phone : NR
* NR – Not Reported

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OMB Control No.: 2127-0004
Part 573 Safety Recall Report 22E-073
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
Oshkosh Corporation SEP 19, 2022 NHTSA Recall No. : 22E-073 Manufacturer Recall No. : NR Manufacturer Information :
Manufacturer Name : Oshkosh Corporation Address : 2307 Oregon Street
PO Box 2566 Oshkosh WI 54903-2566
Company phone : 920-235-9151
Population :
Number of potentially involved : 143 Estimated percentage with defect : 1 %
Equipment Information : Brand / Trade 1 :
Model : Oshkosh
S-Series 2.0 Part No. : 3875726 Size : NR Function : NR
Descriptive Information : A small number of steering gears were assembled without the required number of recirculating balls. The recall population was determined by identifying the oldest production lot associated with a gear failure, and including all production from that lot to the date in February 2022 when the improvements in the assembly process were instituted. Production Dates : MAY 03, 2021 – AUG 01, 2022
Description of Defect :
Description of the Defect : Steering gear was assembled with fewer than the required number of recirculating balls which can lead to a fracture in the steering gear worm-shaft and loss of vehicle steering. FMVSS 1 : NR FMVSS 2 : NR
Description of the Safety Risk : A steering gear with fewer than the required number of recirculating balls
may bind when loads are applied. In some cases, the balls may align on the same side of the gear’s worm-shaft and concentrated loads may cause the gear’s internal parts to fracture resulting in loss of vehicle steering. Loss of
steering increases the likelihood of a crash. Part 573 Safety Recall Report 22E-073 Page 2 Description of the Cause : An anomaly in the steering gear recirculating ball insertion operation occurred during assembly. Subsequent rework processes and inspections did not detect the missing recirculating balls. Identification of Any Warning
that can Occur : Preceding the internal fracture, the steering may be perceived as strained by the driver. No audible or visual warning is available. Involved Components : Component Name : Steering Gear Component Description : Steering Gear assembly Component Part Number : 3875726 Supplier Identification : Component Manufacturer
Name : RH Sheppard Co., Inc Address : 101 Philadelphia Street
P.O. Box 877 Hanover Pennsylvania 17331
Country : United States Chronology :
2/8/22-Sheppard warranty lab receives a gear built 8/20/2021 with failed worm-shaft. 2/9/22 – warranty lab inspection/disassembly indicates fracture of the worm-shaft and less than the required number of recirculating balls 2/10/22-plant stops production. Additional inspections and process verifications put in place. Clean point is established. Material on hand is inspected and confirmed defect free. Production resumes. (2/10/22 – 5/13/22): review of all warranty from 2015-present indicated no similar failure ever received.
Engineering tests are performed to understand and to reproduce failure mode. 3/10/2022 – Sheppard contacted vehicle driver for description of event and confirmed no accident or injury, low speed and while backing up. 4/12/22 – Sheppard receives a second gear at incoming shipping facility 5/5/22- Sheppard warranty lab receives/inspects/disassembles the second gear built on 6/26/21 with failed worm-shaft and less than the required number of recirculating balls 5/6/22- The Product Integrity Committee meets for update on the product investigation. 5/13/22 – The Product Integrity Committee meets and recommends submission of a defect report 573. The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 22E-073
Page 3
The information contained in this report was submitted pursuant to 49 CFR §573
Description of Remedy :
Description of Remedy Program : RH Sheppard will provide remedy instructions for (1) Identifying the
serial number on the steering gear (2) Inspecting the serial number in order to classify it as “good”, “suspect”, or “not found” and (removing and replacing the suspect gear. RH Shepard will cover the labor cost involved in the inspection of gears which classify as “good”. RH Shepard will cover labor cost involved for serial number inspection, gear removal, and replacement for gears which classify as “suspect”. If a gear is classified as “not found” then RH Shepard will require the individual conducting the inspection to contact the Sheppard Steering Gear Recall Product Action Center. How Remedy Component Differs from Recalled Component :
Identify How/When Recall Condition was Corrected in Production : The remedied component will have the correct number of recirculating balls.
On Feb 10, 2022 the recirculating ball insertion process control was enhanced. Additional process controls and inspectors were added to the process to verify that the correct number of recirculating balls in each steering gear. Recall Schedule :
Description of Recall Schedule : Notifications to customers will be made via a customer letter. The 577
customer letter will be mailed pending NHTSA approval. Oshkosh S- Series does not have dealers for its products so no Dealer notification is necessary.
Planned Dealer Notification Date : NR – NR
Planned Owner Notification Date : OCT 28, 2022 – OCT 28, 2022 Purchaser Information :
The following manufacturers purchased this defective/noncompliant equipment for possible use or installation in new motor vehicles or new items of motor vehicle equipment:
Name : NR Address : NR
NR Country : NR Company Phone : NR
* NR – Not Reported

SEOCONTENT-END