7840 linkage calibration

[JDF]

Would anyone have the calibration procedure for the rear linkage on a ford 7840? I cant seem to find it noted in any of my manuals

Since I unpluged the effort control multiplug last week, the linkage in its lowest postion reads 80 on screen & 99 at its highest so almost no lift but no error codes.

 

[forblue]

First why did you unplug lift arm pot, they are prone to go wrong if using a pressure washer that side, calibration is disconnect pick-up rod's, then disconnect lift arm pot turn on ign [ not start] wait until code 27 shows turn off ign recon pot turn on ign error code 24 should appear start eng 1100rpm, move list lever until disabled sign disappears, put lever to top 99 should show, slowly put lever to bottom 0 should show then move lever up until display shows 70-90 leave like this for 2-3mins for lift arms to auto calibrate then stop eng and start again and try lift should show correctly if ok recon lift rods and adjust as necessary to release pick-up hitch, this should be done with oil hot.

 

[JDF]

First why did you unplug lift arm pot, they are prone to go wrong if using a pressure washer that side, calibration is disconnect pick-up rod's, then disconnect lift arm pot turn on ign [ not start] wait until code 27 shows turn off ign recon pot turn on ign error code 24 should appear start eng 1100rpm, move list lever until disabled sign disappears, put lever to top 99 should show, slowly put lever to bottom 0 should show then move lever up until display shows 70-90 leave like this for 2-3mins for lift arms to auto calibrate then stop eng and start again and try lift should show correctly if ok recon lift rods and adjust as necessary to release pick-up hitch, this should be done with oil hot.

Thanks il give it a try, I removed the multiplug for T1 because I had an error code e20 I believe last week which was to do with T1 multiplug on effort control, now when in top position on the lever im at 99 on the screen but the link arms are not fully up, when I drop them as low as possible it displays 32 but they are as low as they should be. Im assuming it just need to be recalibrated

 

[JDF]

Just done the calibration like you said & seems to have fixed the issue, cheers for that, im slowly learning more & more about these 40 series

 

[forblue]

If you look on faceache there is a group on there but anytime you want help put up on either one gut my teeth on 40ser at a main dealers.

 

[essexpete]

If you look on faceache there is a group on there but anytime you want help put up on either one gut my teeth on 40ser at a main dealers.

TBH more help on here than faceache.

 

[Lofty1984]

And that my friends is why tff is good question answered successfully within an hour of posting