Reply
 
Thread Tools Search this Thread Display Modes
 
Old 08-11-2011, 08:34 AM   #15
3 Rivet Member
 
1972 27' Overlander
Saline , Michigan
Join Date: Oct 2002
Posts: 178
Quote:
Originally Posted by meadowlm View Post
I prchased a (inside) fan motor for my 72 from Granger. Could not find the exact match but could find one that had the shaft out both sides of the motor. Some times you have to think outside of the box.

Can you tell me the granger part number for you inside fan motor, I assume your original just had one shaft like mine, what did you do with the second shaft to make it fit?
__________________

__________________
loechli is offline   Reply With Quote
Old 08-11-2011, 07:36 PM   #16
2 Rivet Member
 
1972 25' Tradewind
Albany , Georgia
Join Date: Mar 2007
Posts: 31
Images: 8
4UU33.pdf

Click image for larger version

Name:	DSCF9032.jpg
Views:	62
Size:	259.7 KB
ID:	137353

Click image for larger version

Name:	DSCF9034.jpg
Views:	66
Size:	237.7 KB
ID:	137354
I cut it off with a hacksaw.
granger part number was 4uu33.
__________________

__________________
meadowlm is offline   Reply With Quote
Old 08-11-2011, 07:43 PM   #17
2 Rivet Member
 
1972 25' Tradewind
Albany , Georgia
Join Date: Mar 2007
Posts: 31
Images: 8
You will have to put a wire nut on the wire from the external capacitor because the new motor has a capacitor, also the new motor has three speeds, just use high and low. And when you cut off the shaft, make sure you get the correct side for the fan rotation.
__________________
meadowlm is offline   Reply With Quote
Old 08-11-2011, 08:46 PM   #18
3 Rivet Member
 
1972 27' Overlander
Saline , Michigan
Join Date: Oct 2002
Posts: 178
What made you replace fan, did it completely die?
Mine is getting extremely hot right after starting.

My fan will kick off after running for 20 min in hot weather, I will then turn off then back on and it will run for a short time then start to cycle.
It runs fine on low speed. Does that sound like bad fan motor to you?
__________________
loechli is offline   Reply With Quote
Old 08-11-2011, 08:57 PM   #19
3 Rivet Member
 
1972 27' Overlander
Saline , Michigan
Join Date: Oct 2002
Posts: 178
Quote:
Originally Posted by meadowlm View Post
You will have to put a wire nut on the wire from the external capacitor because the new motor has a capacitor, also the new motor has three speeds, just use high and low. And when you cut off the shaft, make sure you get the correct side for the fan rotation.
did you have to take the squirl cage blower off the shaft by loseing set screw? did squirl cage slide off or did you need to use a wheel puller, and other tricks / difficulty?
__________________
loechli is offline   Reply With Quote
Old 08-12-2011, 06:06 AM   #20
2 Rivet Member
 
1972 25' Tradewind
Albany , Georgia
Join Date: Mar 2007
Posts: 31
Images: 8
Mine did not quit completely. It actually would not stop running. the winding sorted to the motor case.
The blower wheel came off pretty easily. I may have used liquid wrench on it to get it moving.
__________________
meadowlm is offline   Reply With Quote
Old 08-12-2011, 09:28 PM   #21
3 Rivet Member
 
1972 27' Overlander
Saline , Michigan
Join Date: Oct 2002
Posts: 178
Quote:
Originally Posted by meadowlm View Post
Mine did not quit completely. It actually would not stop running. the winding sorted to the motor case.
The blower wheel came off pretty easily. I may have used liquid wrench on it to get it moving.
Having trouble getting the new motor with new mount to center the shaft so the blower does not rub on the housing. did you use the new cradle mount or somehow use the old mount. I am trying to shim to get motor centered, but is not working real well, any tips?
__________________
loechli is offline   Reply With Quote
Old 08-13-2011, 02:44 PM   #22
3 Rivet Member
 
1972 27' Overlander
Saline , Michigan
Join Date: Oct 2002
Posts: 178
still working on armstrong air

finally got the new blower fan to fit, but it like the old motor gets very hot! I check the temp after it was running for 10 min and the motor was 189 degrees and smelling very hot.

I also am not sure about the wiring new fan is 3 speed granger said to just cap off middle speed, trouble is middle speed is also listed as line.

Diagram shows white and blue as line
Black High speed
Red Low speed.

I only have Black white and red running to motor, no matter what combination I use there seems to be little to no speed difference.

I am starting to wonder if Granger fan # 4UU33 is the right fan, but I know at least one other user said it worked. I can not read specs from original fan does anyone have that info, I am very intrested in rpm, new fan is 1075, it seems slower than old fan.
__________________
loechli is offline   Reply With Quote
Old 08-13-2011, 03:35 PM   #23
2 Rivet Member
 
1972 25' Tradewind
Albany , Georgia
Join Date: Mar 2007
Posts: 31
Images: 8
the white wire is a neutral, the black wire switches to either black/blue/or red depending on what speed you want it to run.
Attached Thumbnails
Click image for larger version

Name:	DSCF9033.jpg
Views:	63
Size:	296.3 KB
ID:	137485  
__________________
meadowlm is offline   Reply With Quote
Old 08-13-2011, 03:58 PM   #24
3 Rivet Member
 
1972 27' Overlander
Saline , Michigan
Join Date: Oct 2002
Posts: 178
Quote:
Originally Posted by meadowlm View Post
the white wire is a neutral, the black wire switches to either black/blue/or red depending on what speed you want it to run.

Sorry if I am being a dunce, my wires going into my old motor were white, black, red and brown.

The brown was for the capacitor which is attached to motor so I am not using brown. So the wires I have going to new motor are White, black, and Red. So I attach White to White, how are you "switching" the black wire? What do I do with the red wire coming out of my juction box that used to go to red on old motor?
__________________
loechli is offline   Reply With Quote
Old 08-13-2011, 06:15 PM   #25
2 Rivet Member
 
1972 25' Tradewind
Albany , Georgia
Join Date: Mar 2007
Posts: 31
Images: 8
try white to white, black to black and red to red.
see if that works.
the switching is done with relays in the AC unit.
__________________
meadowlm is offline   Reply With Quote
Old 08-13-2011, 06:25 PM   #26
3 Rivet Member
 
1972 27' Overlander
Saline , Michigan
Join Date: Oct 2002
Posts: 178
had to come in from the rain...

Did you have spec's on original motor, I could not read anything.

It seems high on the new motor is not as fast on old motor.

I know the new is motor is 1075 RPM sure seem like old motor was faster by quite a bit.
__________________
loechli is offline   Reply With Quote
Old 08-14-2011, 05:46 PM   #27
3 Rivet Member
 
1972 27' Overlander
Saline , Michigan
Join Date: Oct 2002
Posts: 178
Rain finally stopped, got motor wired and runs, white to white, black to black and red to red. Seems like very little difference between high and low and does not seem to be as fast as original motor. Does anyone have specs of original armstrong blower motor for an Armstrong TR21-12?

Also a bigger concern is my motor gets extreemly hot 205 deg F with a red dot thermometer, I don't think it should get so hot any ideas??

I am stumped.
__________________

__________________
loechli is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Free 1973 Armstrong A/C parts w/shipping costs rich2002 Furnaces, Heaters, Fireplaces & Air Conditioning 13 06-19-2017 12:43 PM
Armstrong VCT - Any gluing issues with Cold? robwok Floor Finishes 4 08-08-2013 12:49 PM
Armstrong 10 AC Unit BadKarma226 Furnaces, Heaters, Fireplaces & Air Conditioning 7 08-11-2011 09:50 AM
Bryce Canyon to Dead Horse State Park (Moab) JGB On The Road... 6 02-27-2011 09:57 AM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 11:40 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.