fan clutch switch

[brad barton]

Doug,

The fan override switch lets you turn on the fan manually to keep it from
cutting in and cutting out as your water temperature hovers around 190F.
It's less annoying to let it run constantly than to hear it kick on and kick
off every few minutes. But there's another good reason to try it.

Just a brief story about my experience a few years ago in our 84FC-35.
Since we bought the unit in winter, the fan never came on during our first
few trips. I had never heard it, so I didn't realize it WASN'T working when
we needed it, badly, on Highway 16 winding through Custer National Park in
85-degree heat on the way up to see Mt. Rushmore that summer. We started
overheating. I added coolant and water at three stops until I finally ran
out. I had long since gone past any place where I could turn around. With
engine alarm buzzing and steam pouring out of the doghouse, I had to shut
down on the narrowest shoulder of a steep-grade switch-back and lost 30
hours because of a simple broken radiator fan wire.
Bottom line: Use the fan override switch to test your fan so you'll know
it's operational.

Brad Barton 00LXiDFW
bbartonwx@...





>From: "doug_ngl"
>Reply-To: WanderlodgeForum@yahoogroups.com
>To: WanderlodgeForum@yahoogroups.com
>Subject: [WanderlodgeForum] fan clutch switch
>Date: Tue, 27 Mar 2007 22:11:02 -0000
>
>Pokey has a dash mounted switch to energize or disengage the clutch for
>the engine cooling fan. I assume that this is a retrofit from a
>thermostatically controlled switch. Other than the obvious (turn it on
>when the engine reaches operating temp, turn it off in cooler weather
>or just leave it on and forget about it), is there any reason for this
>sort of setup. Is it a common thing to do on the FC's?
> Thanks, Doug Engel. Gunnison, Co, 1981 FC35SB, "Pokey"
>

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