Wanderlodge Owners Group  
BuyByeBlueBird.com
Donate

Go Back   Wanderlodge Owners Group > Mechanic's Corner > Generators

Generators In this forum we will try to answer any of your questions about the different model generators that can be found on Blue Bird coach's.

Site Search:
Reply
 
Thread Tools
  #1  
Old 07-24-2013
mrkane mrkane is offline
Senior Member
 
Join Date: Jan 2008
Location: USA
Posts: 212
Default Down-draft radiator fan failure

My Kohler/Yanmar generator shut down due to coolant over-temp. I found the squirrel-cage blower had stopped. The motor would rotate only a partial turn when spun by hand (with the engine off.) Later, after cooling, the motor now spins more freely.

Is this a symptom that this motor should be replaced? Capacitor?

The motor is marked GE 5KCP39LG. Web searching has not located an exact GE replacement, but rather many other 5KCP39xxx versions. I would prefer to have a replacement on hand before starting the swap, if possible. (It appears it will be necessary to drain the coolant to get the fan housing out.)

Any suggestions?

The good news is I'm in MN where the temp is 75F, not Dallas where it is 100 F.


--M.R.Kane
1987 PT40 'Sleipnir'
currently near Albert Lea, MN
Reply With Quote
  #2  
Old 07-24-2013
Icefixr66's Avatar
Icefixr66 Icefixr66 is offline
Senior Member
 
Join Date: Nov 2009
Location: Austintown
Posts: 1,099
Default

M.R. I realize that there is a great difference between our coaches but my 05 has a squirrel cage blower from Grainger. Might see if you can find a match there!
__________________
Mike Basista
2005 M450
"Some Enchanted Evening"
Austintown,Ohio
Reply With Quote
  #3  
Old 07-24-2013
curtsprenger's Avatar
curtsprenger curtsprenger is offline
Senior Member
 
Join Date: Jan 2008
Location: Anaheim Hills, CA
Posts: 3,900
Default

Quote:
Originally Posted by mrkane View Post
My Kohler/Yanmar generator shut down due to coolant over-temp. I found the squirrel-cage blower had stopped. The motor would rotate only a partial turn when spun by hand (with the engine off.) Later, after cooling, the motor now spins more freely.

Is this a symptom that this motor should be replaced? Capacitor?

The motor is marked GE 5KCP39LG. Web searching has not located an exact GE replacement, but rather many other 5KCP39xxx versions. I would prefer to have a replacement on hand before starting the swap, if possible. (It appears it will be necessary to drain the coolant to get the fan housing out.)

Any suggestions?

The good news is I'm in MN where the temp is 75F, not Dallas where it is 100 F.


--M.R.Kane
1987 PT40 'Sleipnir'
currently near Albert Lea, MN
M.R., I ran into the same problem trying to get the fan housing out past the elec. box that is just forward of the fan housing. Removing some of the bay floor sheet metal bolts, I was able to remove the fan housing without draining the coolant. I recall using a floor jack to support the bay floor. I should have recorded exactly what I did...and taken photos. Good luck.

Edit: Some bay floor bolts removed...I was able to lower the bay floor and the attached components just enough to get the fan housing past that elec. box.
__________________
Curt Sprenger

1987 PT38 8V92 "MacAttack Racing" FOR SALE
1974 FC31 534 gas engine, air brakes (sold)
Anaheim Hills, Calif.
714 269-6187

Do Not Send PM (Private Messages) Please
curtsprenger@gmail.com
Reply With Quote
  #4  
Old 07-24-2013
Mallie Lennon's Avatar
Mallie Lennon Mallie Lennon is offline
1995 WB 42’ Series 60
 
Join Date: Jan 2011
Location: Eufaula
Posts: 4,952
Default

M.R. Just turn it and see if there is any bind or rough bearings. Any resistance at all and it is done for, assuming the wheel is free and not rubbing the housing. If free, it is probably the capacitor.
Any HVAC supply house will have the motor. Not always easy to get the wheel off the motor, but there are ways to make it easier.
__________________
Mallie & Karen Lennon
Eufaula, Oklahoma
95 42' Wanderlodge
Please use e mail instead of Private Message
Mallie@EuLake.com
Reply With Quote
  #5  
Old 07-24-2013
mrkane mrkane is offline
Senior Member
 
Join Date: Jan 2008
Location: USA
Posts: 212
Default

Curt:

On mine, the radiator hose is in the way:




Do you remember what replacement fan motor you used? The 'LG' suffix must specify the case and shaft configuration, but Grainger lists these as obsolete and no longer available.

Thanks--

M.R.Kane
1987 PT40 'Sleipnir'
currently near Albert Lea, MN
Reply With Quote
  #6  
Old 07-24-2013
curtsprenger's Avatar
curtsprenger curtsprenger is offline
Senior Member
 
Join Date: Jan 2008
Location: Anaheim Hills, CA
Posts: 3,900
Default

Motor: 1/3HP - A.O. Smith - D1036/X003, $69.12.
Capacitor: 5-370V, $3.75.
Wheel (fan): D10-10x1/2, $32.54.
Clean, Paint, Assembly, $45.00

I took the unit to an Electric Motor Sales & Service place had them rebuild it.
__________________
Curt Sprenger

1987 PT38 8V92 "MacAttack Racing" FOR SALE
1974 FC31 534 gas engine, air brakes (sold)
Anaheim Hills, Calif.
714 269-6187

Do Not Send PM (Private Messages) Please
curtsprenger@gmail.com
Reply With Quote
  #7  
Old 07-24-2013
Mallie Lennon's Avatar
Mallie Lennon Mallie Lennon is offline
1995 WB 42’ Series 60
 
Join Date: Jan 2011
Location: Eufaula
Posts: 4,952
Default

Quote:
Originally Posted by mrkane View Post
Curt:

On mine, the radiator hose is in the way:




Do you remember what replacement fan motor you used? The 'LG' suffix must specify the case and shaft configuration, but Grainger lists these as obsolete and no longer available.

Thanks--

M.R.Kane
1987 PT40 'Sleipnir'
currently near Albert Lea, MN
From the picture, I can tell you that is a single speed, probably a 1075, sealed Condenser fan motor. Not sure that is not a better choice than the 3 speed indoor fan motor.
__________________
Mallie & Karen Lennon
Eufaula, Oklahoma
95 42' Wanderlodge
Please use e mail instead of Private Message
Mallie@EuLake.com
Reply With Quote
  #8  
Old 07-24-2013
rwoody's Avatar
rwoody rwoody is offline
ANOTHER REDNECK
 
Join Date: Dec 2007
Location: Pleasanton
Posts: 5,626
Default

and rad turned 90 degrees~???
__________________
RWoody
2003 LX Single Slide Hauling Wood 5
2 miles east from Texas Highway 37-97
Just a Hobby Shop now-Bird Repairs upon Appt and my Schedule -USAR Retired
Pleasanton Tx 78064
Do not use PM... please use
rwoody@fullnet.net
http://www.ebay.com/usr/woody19571

Reply With Quote
  #9  
Old 07-25-2013
patticake's Avatar
patticake patticake is offline
Senior Member
 
Join Date: Jan 2008
Location: Ponchatoula
Posts: 1,762
Default

I agree with Woody, as mine is also 90 degrees
__________________
Steve Gureasko
90WBWL40 "Jus Chillin"
Ponchatoula,La.
Reply With Quote
  #10  
Old 07-25-2013
Jim Brookshire Jim Brookshire is offline
Senior Member
 
Join Date: Jan 2008
Location: Saluda, NC
Posts: 1,248
Default

Just a note from doing some work replacing a fan motor at Oshkosh several years ago. Make sure that you look carefully at the mounting supports. Many of the replacement home ACHV fan motors have brackets that will not stand the shock and vibration that happens with over the road operation. We had to replace a motor that had been installed and the brackets had allowed the fan wheel to contact the housing. If you can find a bare motor and reuse your existing brackets (which look very strong) that would be best.
__________________
Jim Brookshire
2001 LXI
Saluda, NC
Reply With Quote
Reply

Bookmarks

Thread Tools

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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
PTO failure drilldoc PT & WB (Twin Axle Pusher Unique Issues) 397 10-12-2012 08:49 PM
Swing IN radiator, aka hole in radiator sanibel General 1 10-23-2011 02:03 PM
300 Amp DD 60 Alternator failure trendycat Electrical 16 06-01-2009 11:32 AM
Koni Shock Failure aaronw Tires, Wheels, Brakes, Steering and Suspensions 7 04-24-2009 04:21 PM
How to Stop Draft Refrig/Wall area? JackandLiz General 5 10-18-2008 10:23 AM

Web Search:

All times are GMT -4. The time now is 11:03 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.