dalex
New member
Hello folks,
I have 2x duoprop drive legs coupled to AD41's. My problem is, that one of the trim indicators is showing -8 all the time, regardless of leg position. The other leg also did the same, until I waggled the connector behind the turbo, which comes off the potentiometer.
Obviously, I tride the same trick with the other engine, but no joy. I have swapped over the trim indicators port to starboard and the fault stays with the drive leg.
It all really went to worms after I tried fitting a second pair of trim gauges for the flybridge. Plugging the 2nd gauge in, made that leg show -8 regardless. Removing restored the correct readings. I came back a few days later and both gauges at the lower helm were on -8(stbd wire waggling fixed it here). Normally with the leg trimmed right up against the transom they read -5 or 6, and trimmed out, they go as far as +3 when the over-ride button is needed to trim out to +40.
I'm worried about using the trim as I was told that running the engines with the legs > +3 is curtains for the rubber bellows.
Why do they make access so flippin awkward?!!
My next try is to have someone watch the stbd indicator as i disconnect the leg pot to see if that makes the gauge go to -8.
The diagram for these indicators show a red/white, black/white and a green/white going to the pot from the gauge. Not sure if this is continuous as there must be a link up to the flybridge somewhere.
I have 2x duoprop drive legs coupled to AD41's. My problem is, that one of the trim indicators is showing -8 all the time, regardless of leg position. The other leg also did the same, until I waggled the connector behind the turbo, which comes off the potentiometer.
Obviously, I tride the same trick with the other engine, but no joy. I have swapped over the trim indicators port to starboard and the fault stays with the drive leg.
It all really went to worms after I tried fitting a second pair of trim gauges for the flybridge. Plugging the 2nd gauge in, made that leg show -8 regardless. Removing restored the correct readings. I came back a few days later and both gauges at the lower helm were on -8(stbd wire waggling fixed it here). Normally with the leg trimmed right up against the transom they read -5 or 6, and trimmed out, they go as far as +3 when the over-ride button is needed to trim out to +40.
I'm worried about using the trim as I was told that running the engines with the legs > +3 is curtains for the rubber bellows.
Why do they make access so flippin awkward?!!
My next try is to have someone watch the stbd indicator as i disconnect the leg pot to see if that makes the gauge go to -8.
The diagram for these indicators show a red/white, black/white and a green/white going to the pot from the gauge. Not sure if this is continuous as there must be a link up to the flybridge somewhere.
