Hello,I know this was a while ago, but here's some info for future reference (hopefully it's helpful now too). RP6 LO or LP6 LO mean "right pickup gain low" or "left pickup gain low", and the gains are adjustable via two pots on the main board. They're two cube parts with little white slot screws on 'em.
Screw the calibration slug into the shaft. Enter F11 and let it spin - it'll read two numbers. The number in the left window corresponds to the left pot, and the right to the right. The values should be between .39 and .6, and the manual specifies .53 as "preferred". Just adjust the pots until you get as close to .53 as you can get.
I got my 4100 (essentially the same as the 5800) for free cause the guy who had it couldn't figure out how to fix it - I adjusted the pots and it was good to go.
I have a copy of the repair manual (some of it, anyways) so if you want it, send me a PM.
Hope this helps you or someone else.
Do you have the calibration slug threaded into the shaft when you run F11? I remember the numbers being way out of whack when I did it without the slug installed.Thanks for coming back! I have the LP6 LO message. When running the F11 I get a reading of .02 and .43. No change when adjusting the pots on the PCB. The F42 ranges from -.24 to -.36 and the F43 ranges -.04 to +.08 Any suggestions were to head?
Double failures are unlikely. I'd at least try adjusting the pot with the sensor leads switched before condemning the pot. I got the impression that the piezo (crystal) sensors tend to be generic and probably are available if you measure the size of what you have and want to chance a replacement. I believe I have the preload torque spec for the sensors if you find a new or used sensor.After switching the plugs on the board it looks like I have a sensor that is not reporting and one pot that doesn't adjust. Haven't had any luck finding parts though, it may be the time has come to buy a new machine.
No problem. Can you post the preload spec for the crystals? Thanks.
I was using mine today and I can't figure out how the ALU numbers are supposed to be entered - the manual says you're supposed to press ALU and then a number corresponding to the diagram you're talking about. The ALU button changes the display to show "ALU" on mine but pressing the number keys after doesn't change anything. Does it work on yours?Since this thread seems to be the main go to in internetland for these balancers, does anyone happen to have the quick reference diagram that came with the balancer which shows weight locations and which ALU and number buttons to press for each of the locations? I used to have access to a balancer which had that quick ref on it and now that I own my own 4100 I'd like to see if I can scrounge up a picture at least of it.
Newjo,This has been very educational. Still not sure what I am fixing until I replace a blown fuse, but the cal er is still there. Next time I am in the shop I will try the F11 and check those settings, but if someone has a picture of the shaft sensors that would be great to see.
you will have to pm me as I am too new to post email address.
I am willys55CJ3b