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#33679 - 08/16/22 06:49 PM Northern Elevator Machine info  
Joined: Aug 2011
Posts: 1
ckg1 Offline
stranger
ckg1  Offline
stranger

Joined: Aug 2011
Posts: 1
Halifax NS Canada
Hey guys, I’m in the process of replacing the ring gear and worm shaft in a big old Northern machine. The Machine type is a 450 geared machine, 12,500lb capacity. I can’t seem to find any useful technical info on how to set up the gear set, backlash etc. Or any tricks or tips to getting the worm shaft out of this ole girl. She’s big and heavy, just wondering if anyone has any experience with one of these machines.

Last edited by ckg1; 08/16/22 06:56 PM.
#33692 - 08/17/22 02:19 AM Re: Northern Elevator Machine info [Re: ckg1]  
Joined: Jan 2010
Posts: 662
danzeitz Offline
addict
danzeitz  Offline
addict

Joined: Jan 2010
Posts: 662
st.louis mo
Send email and I’ll send what I have

#33710 - 08/18/22 11:29 PM Re: Northern Elevator Machine info [Re: ckg1]  
Joined: Nov 2009
Posts: 408
Johnny Offline
Journeyman
Johnny  Offline
Journeyman

Joined: Nov 2009
Posts: 408
Portland. Oregon
Contact Titan Machine in New York. They can tell you backlash setting, but my experience is about .006-.008 Larger backlashes in very cold climates. Worn comes out the Thrust bearing end after removiing the brake drum. You might want to install a new sleeve bearing when you have it out.

#33722 - 08/20/22 10:16 PM Re: Northern Elevator Machine info [Re: ckg1]  
Joined: Jan 2015
Posts: 117
Turbo6 Offline
member
Turbo6  Offline
member

Joined: Jan 2015
Posts: 117
Chicago
We also have one of these machines. Has anybody noticed the motor coupling between motor and brake drum move back n forth about 3/8 inch? Is this normal on these? It can be loud depending on load, direction and brake timing.

#33774 - 08/28/22 11:57 PM Re: Northern Elevator Machine info [Re: ckg1]  
Joined: Nov 2009
Posts: 408
Johnny Offline
Journeyman
Johnny  Offline
Journeyman

Joined: Nov 2009
Posts: 408
Portland. Oregon
f the worm is moving 3/8" back and forth, you probably have a thrust problem. You should look soon, could be dangerous. If you are saying that the brake drum turns 3/8" stop to stop (backlash) this would seem a little tight. Westinghouse used to say 3/4" (circular movement of brake drum) for proper backlash, as they did not have an access plate on some models.


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