Memory was telling me that unscrewing the handle reduced the travel... I
thought I could get it to the point where it hardly moved at all....This
would jibe with the lead-lag idea where the brakes would not seem to come
on at all until you were standing on the car brakes...or would come on with
the slightest amount of pedal ... but, wouldn't that be the same as a
change in the "rough cut"...anyway.. too long since I've used one... I do
remember we could stop quicker with the trailer than we could without
it....I normally had a station wagon full of tool boxes and it was not very
easy to stop... like a large pig on a slippery floor...
Jim
At 10:25 AM 06/03/2001 -0500, you wrote:
>Jim,
>
>Your memory of the method of adjusting braking with the old K-H controllers
>matched mine exactly ... until I actually bought and installed one of the
>old-style K-H hydraulic-electric controllers recently. I think I said as
>much in a list discussion before I actually changed over to the K-H.
>
>To my surprise, according to the instruction sheet that came in the box with
>the controller and confirmed by actual operation, rotating the knob on the
>end of the manual brake lever that protrudes from the front of the
>controller doesn't modulate braking force, but increases or decreases the
>rate of application so that trailer brakes can be adjusted to slightly lead
>the truck brakes. Braking force must be adjusted using a variable or fixed
>dropping resistor.
>
>I cannot swear that both our memories were not correct regarding the K-H
>controllers we used many years ago. My new K-H is a model 81740C which
>could have been redesigned or modified from the original although it looks
>identical to the one I used back in the '70s.
>
>My present experience is that with a heavy A/S (31'er to 34'er) trailer
>brakes work fine without a variable resistor. But when I hook on to my
>tandem axle 22' utility trailer with brakes on one axle only, particularly
>when lightly loaded, trailer braking is excessive without a variable
>resistor. When I eventually get my '66 Safari back together I'm sure I will
>need either a variable resistor or a fixed dropping resistor to change brake
>settings when I change from a heavy to light trailer.
>
>Harvey
>
>----- Original Message -----
>From: jim clark <[EMAIL PROTECTED]>
>To: Multiple recipients of VACList <[EMAIL PROTECTED]>
>Sent: Sunday, June 03, 2001 9:21 AM
>Subject: [VAC] Re: Variable resistor for brake controller?
>
>
> > It has been a lot of years since I had a KH controller, but I seem to
> > remember that the resistor under the hood was the "rough cut" and the
>final
> > adjustment was the amount of movement of the manual controller handle ...
>I
> > thought I adjusted that by unscrewing the handle to match the piston
>travel
> > to the conditions at hand. I am sure I never adjusted the resistor under
> > the hood and did not have any shaft etc to the remote resistor....Like I
> > said, it's been a long time and the mind can create about any picture it
> > wants to see given enough time....
>
>
>
>
>
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>
>If replying back to this message, please delete all the unnecessary original
>text from your reply.
>
>
Jim Clark
[EMAIL PROTECTED]
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