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HOW TO : Service your rear electric jacks


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I covered a lot of info here, read this thread first please:

https://olivertraveltrailers.com/forums/topic/4094-how-to-vip-3000-electric-stabilizer-jack-service/

FYI I used about 2/3 of a jar on two jacks, so a full one might be enough for all three.

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I finally got around to doing the rear ones, it is not especially hard but it is a little nasty. For the tongue jack, I removed the entire head unit and took it to the workbench. It is possible to remove the head on these rear ones, if you don't mind cutting and re-splicing the power wires. I chose to do the job in situ, with a couple of foam pads to cushion my knees. I wore a headlamp so I could see better.

Loosen the three set screws a couple of turns, with a 3/16" Allen wrench. Once they are loose, the gearbox/ motor assembly can be swiveled around for better access to the top bolts; This is the CURB side one, the STREET side one has a lot more room around it:

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Remove the four bolts, tap the side of the upper cover carefully with a soft mallet to break loose the gasket. If it doesn't tear, you can reuse it, be careful. Both rear gearboxes looked a lot like the tongue one, except that the grease had not hardened in these. It was however contaminated with metal particles. There was not nearly enough grease installed at the factory, and there was some obvious wear from "dry spots".

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By lifting off the unit you can access the drive pin and the top of the jack screw.

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Clean off all the old stuff there with paper towels and a light dash of a solvent like brake cleaner. Lube with CV-2:

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Set the unit back in place and clean out the old glop. 

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The top cover and big gear can be taken away and blasted hard with brake cleaner. Do NOT try that inside! Lube the bottom part. I used a small plastic piece as a trowel. Try to get the lube under the big gear and apply it liberally around the outside. Wipe off the gasket surface.

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Be VERY careful not to lose the little stainless shim that goes against the small gear face. When you reinstall the gear,use grease to capture the shim.

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John Davies

Spokane WA


 

 

 

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"Mouse":  2017 Legacy Elite II NARV (Not An RV) Two Beds, Hull Number 218, See my HOW TO threads: https://olivertraveltrailers.com/topic/john-e-davies-how-to-threads-and-tech-articles-links/

Tow Vehicle: 2013 Land Cruiser 200, 33" LT tires, airbags, Safari snorkel.

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Grease the upper cover:

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Set the gear and shim down over the lower part, align the gasket and install the cover and the four bolts. Tighten the three set screws firmly, be careful they are steel in aluminum. Clean off the top and make a record of the service:

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Test the jack for proper operation and shift all your tools and stuff to the other side.

My street side gearbox looked very similar - too little lube, some gear wear:

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Each jack took a couple of hours, most of that time was cleaning out the old contaminated grease. A future service might be a whole lot faster, you could just take a look and add some more CV-2 if needed. I do NOT recommend leaving the old white lithium grease in place, it will not mix well with the full synthetic, and you should get all those black metal particles out!.

John Davies

Spokane WA

 

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"Mouse":  2017 Legacy Elite II NARV (Not An RV) Two Beds, Hull Number 218, See my HOW TO threads: https://olivertraveltrailers.com/topic/john-e-davies-how-to-threads-and-tech-articles-links/

Tow Vehicle: 2013 Land Cruiser 200, 33" LT tires, airbags, Safari snorkel.

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Thanks for the tutorial John.   Very helpful.  The jacks are one of my next maintenance projects this summer.  

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2019 Oliver Legacy Elite II - Hull #461

Tow Vehicles:

Primary - 2019 Ford F-250

Backup - 2019 Nissan Armada 

 

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Nice job on the tutorial John!   Makes me want to at the very least, pop the cap off and add just a bit more grease right away while it's still new.  Hopefully avoid some of the metal specks before I eventually do clean it out and replace it with the better synthetic grease.

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2022 Elite II, Hull #1097, Lithium batteries w/390Amp hours, and solar (pick up is May 2)

2019 F-150 4wd, 3.5L Eco-boost, 3.55 rear end, with Max tow package

 

 

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Keep in mind how these parts are made, most likely an unskilled worker has ten seconds to shoot a measured amount of lube in one place, then the gearbox goes on to the next station. They could not spend the required time needed to hand pack it properly. And think how much money they save by not using enough grease.

John Davies

Spokane WA

 

  • Thanks 1
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"Mouse":  2017 Legacy Elite II NARV (Not An RV) Two Beds, Hull Number 218, See my HOW TO threads: https://olivertraveltrailers.com/topic/john-e-davies-how-to-threads-and-tech-articles-links/

Tow Vehicle: 2013 Land Cruiser 200, 33" LT tires, airbags, Safari snorkel.

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On 4/16/2022 at 5:41 AM, John E Davies said:

And think how much money they save by not using enough grease.

John Davies

They likely make even more by our having to replace them if we don't follow your lead!  

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Tug:  2019 F-150 SuperCrew Lariat, 3.5L EcoBoost, Max Trailer Tow, FX-4, 4X4, Rear Locker

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