Even the best electric truck techs are lucky about half the time, all I care about is winning. Congratulations.

Hi everyone

Just an update. Checked all issues including another foot controller and all wires back from front to rear to panel all shows ok.

I Have found by fluke, i have to admit there seems to be a problem with the head capacitor usually the terminal goes loose on them and you can see the problem, on this one one of the terminals in internally loose and when i push the cable to it you can see sparks coming from inside the terminal point.

Capacitor has been ordered, if it solves the issue will post next week with an update.

Thanks for all the assistance.

Hi Martins

Thanks of the advice. it does appear to be somehow connected to the battery issue, yet it does the same when jumped off another truck with another battery. The fact that it has actually worked twice when working on it and intermittantly flashes/scrolls through the display indicating battery error makes me think its the logic bdi settings which may be out of adjustment or faulty at that, lets see if the customer gets logic tested and what they come back with. Will let you know what it was once sorted :)

good work
friend, yesterday I had a similar case, the problem existed in an element of the battery that was null. how to do a test (to measure voltage on each element making the engine act hid. or traction, this with a little braking and measuring 1 by 1 and go against what is left with no load or short, also with a tip tester sets the + or - I will follow with another until you find what is breaking voltage. we'll find the damaged delete it and care for jumper until replacement. element to the client machine does not run out. sorry for something.

Hi Ed

Got this from the plate under serial 1KJ03000. Will check under the stall method next time under tilt stall it dropped from 47 to around 43 to 44 volts. if i operate the park brake switch it actually cuts out all traction, when i release the park brake i get drive but slow.

Checked all cables and heatsinks for earth problems, all insulations ok, have not had the battery out to check under the battery, may be the next option.

I tried the onboard diognostic, however after cycling the direction switch to forward the display changes to 3 but when i cycle to reverse nothing happens and then after a while starts flashing 7, which from what i understand should happen when operating lift levers, so i could not get any further with the diognostic procedures.

The seat seems to be doing its job as as soon as i sit on the seat the line contactor comes in and when i get off it after a few seconds line drops out. And in dignostic mode seat shows ok.

Does the same with the truck off the ground. It all does seem battery related as sometimes the display runs up and down indicating a low battery problem, so it could be the bdi setting in the logic card not set correctly? Hence all the problems possibly, have advised customer to get logic sent away for testing.

Serial number?
Under hydraulic stall (lift to top and hold, not tilt on this machine, as it may have chopper controlled hydraulics), what is the battery voltage? at rest, what is the battery voltage?
Can you confirm the park brake switch is in the correct position and connection state when the problem happens. the park brake on some of these has the function of cutting out considerable torque (but not RPM) to the drive motor (NOT cut out the drive, just no real torque to speak of).
have you checked for good (clean) no shorts to frame from -all- the power cables (not just the ones to the motor, but a check of all heat sinks and transistors/recs insulation)? Have you cleaned all the crud from the cables that run under the battery and replaced any cable that was cracked or swollen?
The foot control should have no effect whatever to the hydraulics cutting out, other than they both draw from the same battery.
have you gone through the "onboard diagnostics" with the "drs" switch to check the accel box and other inputs and outputs?
Consider a real good look at the seat switch linkage too, since an open seat switch may stop everything until it gets a good "SRO" (static return to off)
one more thing, let me get this straight, you are saying that after travel (is it the same if the drive wheels are off the ground? = less amps in the traction circuit.) there is no more hydraulic function, as if it went into lift lockout, is that correct?