KKELLER14K
BEAVERTON OREGON
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Joined: 12/15/2006
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Man that's a lot of work doing it by hand...my first two had manual. Lucky for me the wife did help me out...but she was the one that said enough...I'm thinking yes!...we get a new bigger one! My last two had electric and it's a world of difference....but with electric motors comes a whole new set of issues. Best of luck...Don't forget that even if it looks good in there...it will be much smoother when it gets a little TLC.
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d3500ram
Colorado
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Joined: 07/31/2006
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Good to know that I can disassemble in the current position.
It does not have a motor... fully manual 4150's on all 4 corners of a Northstar Arrow camper as indicated in signature 2 posts above. I am going to tackle it this weekend.
Also- If anyone wants a document copy of the procedure, PM me with an e-address and I can forward a .docx. doc and PDF version for any member who would like one.
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KKELLER14K
BEAVERTON OREGON
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There is no reason you can't take it off where it is...as long as you can get it off. What is this on that it is not got a motor,..just curious?
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d3500ram
Colorado
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Joined: 07/31/2006
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I have to service one of my jack because of issues discussed here. A couple of questions before I start please...
1) I have manual 4150 jacks with no motor. Can I assume that the procedures described within will for the most part apply to manual jacks?
2) Before any disassembly, does the jack need to be in a fully retracted (up) position? My jack in question is really kinda' tight in the position it is in that I do not think I can retract it if that is necessary. Can I disassemble in the current partially extruded position?
thanks.
Sold the TC, previous owner of 2 NorthStar pop-ups & 2 Northstar Arrows...still have the truck:
2005 Dodge 3500 SRW, Qcab long bed, NV-6500, diesel, 4WD, Helwig, 9000XL,
Nitto 285/70/17 Terra Grapplers, Honda eu3000Is, custom overload spring perch spacers.
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stevenal
Newport, OR, USA
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Old Islander wrote:BTW, HappiJac sent me a package of 13 PDF's with a good deal of information about these jacks (exploded diagrams, etc). They total about 10 megs. If anyone can suggest a public place to upload them so they're available to all, I'd be happy to do that.
I use http://files.engineering.com/upload.aspx. Not sure what the size limit is.
'18 Bigfoot 1500
Torklifts and Fastguns
'17 F350 Powerstroke Supercab SRW LB 4X4
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KKELLER14K
BEAVERTON OREGON
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Well hello everyone!! I am thrilled to see that this is still a hot topic. It is my pleasure to have helped my fellow TC family. Granted this did not cover nor could it cover all of the models produced but it sure gives you a good place to start. After many years of YouTube and such, this was and still is an easy find here on our own forum. Jacks will fail not if but when it is the worst possible time. Keeping them maintained with re-lubrication and free of moisture will give you a hassle free experience. No one expects a fail, but fail to plan, plan to fail. Thanks for the shout out Old Islander..
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Old Islander
British Columbia
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Joined: 06/06/2017
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BTW, HappiJac sent me a package of 13 PDF's with a good deal of information about these jacks (exploded diagrams, etc). They total about 10 megs. If anyone can suggest a public place to upload them so they're available to all, I'd be happy to do that.
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Old Islander
British Columbia
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This thread is now 8 years old, and just as relevant as the day it was posted. I'd like to thank Kevin, the OP -- I was able to quickly and easily dismantle my Model 4150 jacks, thanks to his text an pics.
One issue I had with mine was the socket part that the manual jack handle inserts into.
Here they are from the exploded parts diagram:
![[image]](https://c1.staticflickr.com/5/4235/35147010025_9d5cab30c9.jpg)
On a couple of my jacks, this metal insert (#13) was so stiff turning in the plastic sleeve (or bushing), that the housing got quite hot while running the jacks up/down. The electric motors were working a lot harder than they should have had to. A bit of machine oil in the socket didn't help.
I have a wood lathe and after cleaning the surface of the metal insert, mounted it on the lathe. Then trued it up with a fine flat metal file. It was almost like some sand had gotten in there and scored the surface. When I reinserted it into the plastic bushing with some lithium grease, it turned as smooth as butter, and the jack now works perfectly.
* This post was
edited 06/07/17 10:34am by Old Islander *
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northsantiam
Oregon
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Joined: 02/19/2007
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Good thread and found to be very helpful. I had 2-4100 jacks that had bad thrust bearings, 1 completely destroyed and 1 on its way. I was able to find these little thrust bearings at MSC Industrial supply. I serviced the front 4600 jacks, they looked good but a little short on grease at thrust bearing and thrust plate. Had to adjust clutch on one of them a tad. Cannot figure out how to attach pictures so if anyone wants to see what I had and what I bought, drop me an email.
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Grit dog
Black Diamond, WA
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Joined: 05/06/2013
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Bringing this back to the top. Found it very useful this weekend.
Thought I had a jack with stripped teeth or threads or something. Turned out was a bunch of rust accumulated jamming it up. Thorough disassembly greasing and oiling made it work like new again.
Probably should do the other 3......
2016 Ram 2500, MotorOps.ca EFIlive tuned, 5” turbo back, 6" lift on 37s
2017 Heartland Torque T29 - Sold.
Couple of Arctic Fox TCs - Sold
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