On 9/6/2018 2:09 PM, dpb wrote:
Working on JLG 40H manlift; the choke control solenoid failed so
previous owners just bypassed and jumpered battery/ignition voltage to
the control logic circuit and connected it to the choke solenoid.Â* This
worked for a while, but the small conductor wire with long run from the
controls in the bucket isn't pulling sufficient current reliably so am
in process of putting back to way it is supposed to be...new power
solenoid to feed power, move controls back to control-only.
....

Well, it's _so_ nice to be able to control the choke from the bucket
again!!! Don't have to worry about whether it'll start w/o it or have
to leave running continuously.

And, actually, it turns out the cable I thought they had cut I finally
found the end of pushed back under the mass jumble of hydraulic hoses
and other cables so it turned out I didn't need a new run of the sheath
material after all...

But, took a fair part of a day to reroute and reconnect the pieces of
the control circuitry with some time along the way to sorta' "tidy-up"
other bits 'n pieces of less-than-stellar repair work done previously.

Replacing the failed solenoid wouldn't have been more than about a
15-minute operation back at the time it went bad. Since it spent its
former life before I acquired it as a rental unit, I suppose it was on
site and they needed it and the rental folks didn't have part on hand or
they never bothered to call and just jury-rigged it to be able to keep
using it...in all fairness, it did work pretty reliably for the first
several years as long as we kept the ground connections all really,
really good. Over last several, however, it has become more and more
troublesome until it simply wouldn't operate at all from the remote
location.

I hadn't actually been aware that the solenoid had failed and it was
mis-wired until really began troubleshooting the problem and discovered
were trying to power it from the control circuit instead of the power
circuit.

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