RV.Net Open Roads Forum: Fifth-Wheels: Landing gear motor.

RV Blog

  |  

RV Sales

  |  

Campgrounds

  |  

RV Parks

  |  

RV Club

  |  

RV Buyers Guide

  |  

Roadside Assistance

  |  

Extended Service Plan

  |  

RV Travel Assistance

  |  

RV Credit Card

  |  

RV Loans

Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Fifth-Wheels

Open Roads Forum  >  Fifth-Wheels

 > Landing gear motor.

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 4  
Prev
Sponsored By:
cummins2014

Utah

Senior Member

Joined: 02/20/2008

View Profile



Good Sam RV Club Member

Offline
Posted: 11/12/19 06:36pm Link  |  Quote  |  Print  |  Notify Moderator

bpounds wrote:

I think 2 motors is a fine idea. But whether you do that or not, you need to get some grease on the leadscrews, or it is just a matter of time before a leg seizes up on you.

Most trailers don't have zerks, and if they do it will only be for the bevel gears at the top. The leadscrews cannot be lubed through a zerk, unless you just willy nilly fill the leg with grease. You need to get the grease into the follower nut and along the threads of the screw.

I drilled access holes in each leg, and I use spray grease with a straw nozzle to direct the lube on the screw. I use motorcycle chain and cable spray, because it is very clingy, but regular old grease will work too. Heavy stuff preferably. You can see where I drilled the holes in the photos below. They are only about 3/8" diameter.

Once you lube the leadscrews (they are NOT worm gears BTW), I think you will be pleasantly surprised at how much easier your motor handles the load.

[image]

[image]



I too think two motors are okay, but not always necessary, there are a lot more heavy fifth wheels then what I think the OP has ,plus its sounds like there is no generator up front. I have an ONAN 5500 LP in front, and have been fine with just the one motor setup as long as I keep it greased up, and I'm still on the original motor.

Thanks for the correct terminology on that "leadscrew" As far as the Zerks go, yes the older legs do not have them ,my 2008 do not. But if you were to replace those legs in your picture ,they would have two perks, and the lower WILL get the leadscrew using a grease gun .As said in a previous post we went thru this with a friends landing gear.

We ended removing both landing legs ,drivers side was shot stripped out leadscew, and the other must have been just slightly burred on the leadscrew ,and had some rough spots in it, when turning it by hand when out of the fifth wheel. We lubed up that lower zerk ,and it freed it right up. Now his is running great on the one motor, with one new leg, and one properly lubed .


I have one leg with zerks, and one without, but was greased torn apart , I will drill a hole like you at 4" down, obviously if the zerk is working there on his ,and my other one, 4' down should be good for the drilled hole. Its hard to see where that hole is drilled in yours, I am thinking the white spot if s0, pretty close to that zerk at 4" . Although those jerks are on the front side of the legs, not a great place for them as far as getting too. .

* This post was edited 11/12/19 08:05pm by cummins2014 *

bpounds

Sophmore Brain...

Senior Member

Joined: 12/12/2010

View Profile



Good Sam RV Club Member

Offline
Posted: 11/13/19 08:52am Link  |  Quote  |  Print  |  Notify Moderator

I don't think the distance down is too important. I would be happy to measure mine for anyone who asks. It's more than 4" I'm sure. Guessing 6-8" from top end of leg. I wanted to be able to spray lube right at the follower nut (the top of the inner leg where it is threaded), so that it could penetrate. Then run the leg down a little and spray some more. Then run the leg up/down to spread the lube along the leadscrew. You can't reach all the threads with just the 4" straw on a spray can, but working the leg up and down while spraying will get it effectively spread along the thread. To really do it right, pulling the legs would get it done. More work than its worth IMO, unless some other repair is needed.

Don't bother lubing the sides of the square tube legs. They are never a tight fit, unless you've bent one.


2006 F250 Diesel
2011 Keystone Cougar 278RKSWE Fiver


ghooos

yeaop

New Member

Joined: 04/22/2019

View Profile


Offline
Posted: 11/14/19 02:23pm Link  |  Quote  |  Print  |  Notify Moderator

Here is an observation on my 2008, as well as my friends 2010 , both Montana Fifth Wheels. Grease is a wonderful thing unfortunately the 2008 of mine has only the one zerk to lube the top gears. The 2010 has two perks one for the top gears , and one for the long worm gear.

The 2010 was also laboring, mine has always ran decent, not great, but still on the original motor. The 2010 was nearly coming to a stop , well the gears were pretty dry, greased up both zerks, and it runs like a champ. That could be your biggest problem.

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 4  
Prev

Open Roads Forum  >  Fifth-Wheels

 > Landing gear motor.
Search:   Advanced Search

Search only in Fifth-Wheels


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:

© 2019 CWI, Inc. © 2019 Good Sam Enterprises, LLC. All Rights Reserved. | Terms of Use | PRIVACY POLICY | YOUR PRIVACY RIGHTS