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How to Repair a Stuck Trailer Jack

Introduction

If your trailer jack is not operating correctly or stuck from corrosion or rust, this guide will show you how to disassemble the trailer jack and remove the rust that causes the trailer jack to become stuck or inoperable.

The trailer jack is consisted of two assemblies. The upper assembly that is used for support and protection of the screw assembly. The lower assembly contains the foot of the jack and the screw assembly of the jack. The screw is made of steel and over time will build up rust and cause the jack to not operate or become stuck.

Before using this guide, be sure to safely support the trailer that the jack is being removed from. This guide also includes the use of a die-grinder and eye and hand protection is suggested in the use of this equipment.

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  1. How to Repair a Stuck Trailer Jack, How to Repair a Stuck Trailer Jack: étape 1, image 1 de 1

    • Remove the trailer jack from trailer.

    • Use a 19mm box end wrench to remove the 19mm hex head bolt that secures the jack to the trailer.

    • Slide the jack off the trailer to remove.

    • Be sure to safely support the trailer before removing (With a vehicle or jack stands).

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  2. How to Repair a Stuck Trailer Jack: étape 2, image 1 de 1

    • Remove the nut and bolt that secures the handle to the jack.

    • Use two half-inch box end wrenches to remove the half-inch bolt and nut.

    • Slide the handle upward after removing the nut and bolt to remove the handle.

    • Set the handle aside.

    • Screw the jack to the most extended spot the jack will go.

    Modifier

  3. How to Repair a Stuck Trailer Jack: étape 3, image 1 de 1

    • Lift the spacer or washer upward.

    • Set the washer aside.

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  4. How to Repair a Stuck Trailer Jack: étape 4, image 1 de 1

    • Turn the jack upside down and use a hammer to gently slide the upper assembly off the lower assembly.

    • Set the upper assembly aside.

    Modifier

  6. How to Repair a Stuck Trailer Jack: étape 5, image 1 de 1

    • Begin to remove the rust and corrosion using a die-grinder and steel wire wheel.

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  7. How to Repair a Stuck Trailer Jack: étape 6, image 1 de 1

    • Apply grease or anti-seize lubricant to the screw assembly.

    • Screw the screw assembly to full extension and shortest extension to ensure lubricant reaches every section of the screw assembly.

    Modifier

  8. How to Repair a Stuck Trailer Jack: étape 7, image 1 de 1

    • Remove rust and corrosion from the upper and lower assemblies of the jack using a die-grinder and sanding pad.

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  9. How to Repair a Stuck Trailer Jack: étape 8, image 1 de 1

    • Paint the upper and lower assemblies for prevention of future rust and corrosion.

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  10. How to Repair a Stuck Trailer Jack: étape 9, image 1 de 1

    • During re-assembly, align the notch on the upper assembly to the grove on the lower assembly.

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  11. How to Repair a Stuck Trailer Jack: étape 10, image 1 de 1

    • Use a hammer to force the upper assembly over the lower assembly.

    • Be sure to align the grove and notch of the assemblies.

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  12. How to Repair a Stuck Trailer Jack: étape 11, image 1 de 1

    • Install the washer and the jack handle over the stud of the jack.

    • Insert the bolt through the handle and the hole located on the stud.

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  13. How to Repair a Stuck Trailer Jack: étape 12, image 1 de 1

    • Install the jack to the trailer and test for correct operation.

    Modifier
Conclusion

To reassemble your device, follow these instructions in reverse order.

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Cody Gearin

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University of Memphis, Team S5-G10, Willis Spring 2020 Membre de l'équipe University of Memphis, Team S5-G10, Willis Spring 2020

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2 commentaires

Thank you, very helpful. our tongue jack was a bit different looking but the principles were all the same, and with the help of this guide we got it fixed.

Loren Turner - Réponse

What if the trailer jack is frozen in the position. And the gears on top are well greased?

Wesley Ramsey - Réponse

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