Horton Air Fan

[gregoryoconnor]

The problem with the Hortons I found using them on hydroseeder pump engage is
we presser washed the equipment every use. when we started using a synthetic
soil-tackifier in our mix the hortons would go bad 4 months tops. I thought it
was tackifier getting in the clutch as it got all over every thing else. I now
believe it was our need to use solvents to clean the hydroseeder unit. Once I
dedicated a machine to be used for synthetic tackifier we pretty much only
cleaned the windshield, didnt use solvents, and never had issue with the clutch
for years.

the repair was rebuild the clutch. the fix was to not wash out the grease.

If you watch these videos notice the large amount of grease used in reassembly.
also notice the spline that the pully wheel travels to separate from the fan
wheel. there is a lot of surface area and if this is your horton design maybe
the hang up is on this spline. It may be that you only need to open up the fan
and regrease the spline????

on reassembly notice there are two videos as there are two horton styles.

how to maintain a horton fan clutch,
http://www.youtube.com/watch?v=Rf3Pzn8qz8c

howto dismantle a horton fan clutch
http://www.youtube.com/watch?v=5DseHo_vGcA

howto assemble the horton fan clutch
http://www.youtube.com/watch?v=hFBt4dH2Aas

howto assemble a horton drivemaster fanclutch
http://www.youtube.com/watch?v=Rp1MntGw09g

Greg of Tim&Greg
94ptca



--- In WanderlodgeForum@yahoogroups.com, Donald Spithaler
wrote:
>
> Greg
> I said that wrong. My fan was off override. And it does take air
> pressure to it to activate the fan. When it sits for couple of days the fan
> will spin free. There is a electric solenoid valve that when my key is
> turned off it opens & lets air to the fan until my air goes down.
> Don Spithaler
> 89 SP 36'
> Butler, PA
>
> On Sun, Sep 6, 2009 at 2:42 AM, gregoryoconnor wrote:
>
> >
> >
> > I am surprised they use such a clutch to cool an engine?? I used hortons
> > that require air pressure to engage on water pump clutch applications. Any
> > pneumatic fan clutch I ever had on a truck was air pressure to disengauge.
> > In otherwords when the clutch lost air the springs would pish the fan on.
> > passive-on / active-off like the parking brake. Are you sure it is air to
> > engage?
> >
> > If you had the switch on override the fan would be on all the time it is on
> > override??? Override overrides the prompts to turn the fan off.
> >
> > there again the electrical end is also electric effort to turn off and no
> > electric effort to spin. (passive-on-spin /active-off) when the power or air
> > has a failure in any combination the fan will spin and cool. this ensures
> > that if the engine is running with the failue it will have cooling. But I am
> > not sure how it is set up on your bus????
> > Greg of Tim&Greg
> > 94ptca
> >
> >
> > --- In WanderlodgeForum@yahoogroups.com,
> > "dspithaler" wrote:
> > >
> > > Hi Guy's I had my Horton rebuilt two years ago. We just came back from a
> > 3000 mile trip & every thing ran good with the fan cycling on and off as
> > normal I aired it up & checked the fan & it was turning. My fan switch was
> > on override & it shouldn't been turning. I couldn't get it to quit turning.
> > Even when My air tanks were drained it still wouldn't spin free. It is
> > locked up. Any one have an idea why it would go bad in a couple years?
> > Thanks Don
> > > Don Spithaler
> > > 89 SP 36'
> > > Butler, PA
> > >
> >
> >
> >
>