Genny cooling issues

[Ralph L. Fullenwider]

Ok:


The power to the fan motor come directly from L1/L2/LO. these points are
located behind the vented plate on the back side of the Kohler gen
housing and are on isolated studs. Were they wired back properly? The
motor can be configured as 100VAC or 220 vac, double check the way the
motor is wired then check the wiring from the motor to the isolated
studs. You can see those connections in your gen set manual on the 2 line
wire diagram.


Safe travels,


Ralph and Charolette Fullenwider

84FC35 "Ruff Diamond"

Duncan, Oklahoma


At 02:19 PM 4/30/2009 -0700, you wrote:

Hey Ralph - Thanks for the
pointer. No such switch on my control box - there are three wiring
harnesses (one on the back leading to the coach and two on the tront
leading to the genny), one 10A bus fuse (which is still good) and the
start/stop and preheat switches. That's all.


Thanks!

Greg

86 PT-40

Escondido CA




From: Ralph L. Fullenwider


To: WanderlodgeForum@yahoogroups.com

Sent: Thursday, April 30, 2009 2:00:36 PM

Subject: Re: [WanderlodgeForum] Genny cooling issues



Hi Greg:


Open the gen set slide and on the left side of the control box see if
there

is a switch. This is not the start stop or preheat switch. Some of the


Yammar sets have a switch that cuts the cooling fan off.


Safe travels,


Ralph and Charolette Fullenwider

84FC35 "Ruff Diamond"

Duncan, Oklahoma


At 01:51 PM 4/30/2009 -0700, you wrote:


>Hi Everybody -

>

>Ernie and all - Thanks on the pointers on the Chrysler power seat


>controls. Found one, and after a little plastic modification it fit
and

>works perfectly. Now we can move the co-pilot's seat again!

>

>This one's a little more critical. Late last week we had the
generator

>worked on after it completely stopped producing power - its rotor
bearing

>was shot and the stator and rotor were about to start arcing due to


>insulation wear. Had them "washed, baked and dipped," and
$1700 later are

>now getting plenty of power. However, it seemed to be overheating
still,

>as it did on last year's long trip. We have a 1986 PT-40 with the


>side-mounted radiator and the Kohler / Yanmar12.5K generator. So I've


>pulled the radiator and noted that the fan wasn't getting any current
from

>the generator. I bypassed the feed and found that the fan blades were


>binding on the housing. I've now got the binding fixed, so it will
rotate

>freely - but two things still baffle me:

>

>1. Is there a circuit breaker or fuse somewhere on the power feed to
the

>fan that could have blown because the fan blades were stuck? Any idea
of

>where to look for this?

>2. Have noted that the fan was installed so that the airflow is from


>outside to inside - pulling air through the radiator and exhausting
it out

>through the cage and to the center of the coach. Is this

>normal? Functional? Flipping the fan blade doesn't help - it's got


>scooped fins and only collects air in one direction. Thoughts? The
guys

>who repaired the genny suggested I get a 12V radiator fan at a local
auto

>parts store, but then I'm faced with having that switch on when the


>genny's running.

>

>Thanks!

>Greg Young

>

>86 PT-40 Bluefire

>itching to get on the road.

>

>

Safe travels,


Ralph and Charolette Fullenwider

84FC35 "Ruff Diamond"

Duncan, Oklahoma