Hyster E50Z:
Slow speed

Had a guy fiddle with my perfectly operating electric hyster the other day...an hour of operation later, with just 2 bars of power left, I headed to the charger...but with no error codes showing, the machine only moves VERY SLOWLY! Recharged her. still VERY SLOW drive forward and reverse.

Lift functions normal.

No fault codes.

No code of any kind.

PLEASE HELP!
  • Posted 27 Feb 2015 11:26
  • Discussion started by FiascoDave
  • Oregon, United States
Showing items 1 - 11 of 11 results.
Hi

did you fixed your problem? I have the same issue

thanks
  • Posted 6 Feb 2020 06:32
  • Reply by LP35
  • Quebec, Canada
Understood. I doubt it's a mechanical connection. I've looked, no mechanical problems. I added my email to signature block if anyone out there has a service manual I can review. Specifically, I think there is a service limitation inadvertently placed on the drive software, limiting the truck to "crawl" mode.

I need the tech manual and am confident I can reset. At least give it a try, if that fails, I'll reluctantly call out a tech.

Thanx
  • Posted 11 Mar 2015 02:23
  • Modified 21 Mar 2015 01:25 by poster
  • Reply by FiascoDave
  • Oregon, United States
Understood. I doubt it's a mechanical connection. I've added my email to signature block.

I need the tech manual and am confident I can reset. At least give it a try, if that fails, I'll reluctantly call out a tech.

Thanx
  • Posted 11 Mar 2015 02:23
  • Reply by FiascoDave
  • Oregon, United States
yep edward makes a good point, why was the tech there to begin with? and i do realize calling in a tech can be expensive but having someone not experienced going in and trying to adjust settings could be MORE expensive in the end. Adjusting these settings isn't the same as let's say... changing the oil in your lawnmower :o/

as far as your email address, there is a reason i said to add it to your forum profile, if you post it in the thread the forum software strips it from text, ie: it takes it out, it does the same thing if you post webpage links also. If you put it in your signature in your profile it won't remove it.

Anyhow can't send anything to url/email removed :o/
  • Posted 10 Mar 2015 23:31
  • Reply by swoop223
  • North Carolina, United States
You've been swooped!
swoop223@gmail.com
FiascoDave at gmail.com, this truck has an accelerator control potentiometer (kinda of like a volume control on a radio, but the forklift's "radio" only plays 1 note, and really loud) that sits under the pedal, and has a slot to allow a pin to travel as you push the pedal. my bet/w.a.g. is that this pin has, for some reason, come out of the slot, and the "volume control" is no longer moving with the foot (accelerator) pedal.
As someone who likes bluegrass and violin music, I like swoop's saying of; "one of the worst things one can do is 'fiddle' with a lifttruck". ;-)
and he is very correct there. as it worked correctly for an hour or so, I doubt it was actually from the previous tech unless he left something under the floor loose.
Dave, you don't say why the ' violin player' (fiddler) was there in the first place, and that may give us another clue as to what happened, but it is my guess you have a mechanical connection to the accelerator control that is not correct now..
  • Posted 10 Mar 2015 21:32
  • Reply by edward_t
  • South Carolina, United States
"it's not rocket surgery"
Thanks. My email is : [email address removed]

To review: all normal ops, then with only 2 bars displayed for battery life remaining, my Hyster E50 went on "crawl" mode, first time ever...that's why I suspect it was fiddled with. I "crawled" to recharger, recharged normally. But it still just crawls forward & reverse, but lifts normally.

Getting instructions to reset to factory settings, and/or reset from fiddling that caused it to only crawl would be great, because getting a mechanic out here is really spendy.

Thanx,
Dave
  • Posted 10 Mar 2015 13:21
  • Reply by FiascoDave
  • Oregon, United States
Well getting you the whole manual i cannot do.
But i can see what i can do about getting the settings for you.

You should have them this evening provided you add your email to your forum profile.
  • Posted 10 Mar 2015 03:24
  • Reply by swoop223
  • North Carolina, United States
You've been swooped!
swoop223@gmail.com
No luck there. Getting maintenance where I am is very difficult...

Can I get a copy of the factory maintenance manual specifically the programming settings?

I believe I can reset to factory original settings if I have the mx manual.

Getting a tech/mechanic here is very costly.

HELP!
  • Posted 10 Mar 2015 02:32
  • Reply by FiascoDave
  • Oregon, United States
well no, i wouldn't recommend that

unless you've been factory trained and know what to look for and change you could wind up doing more damage than the other guy did which would cost you more $$$ in the long run compared to if you just call the service tech out.

one thing you can try though is to change the performance mode, if you press the #4 key after the truck is turned on and fully initialized it should change the truck to mode 4 which is the fastest mode available. When you are driving the truck the display should show you what mode you are in. If it is 1 , 2 , or 3 this might be what is wrong. The lower numbers are slower variations in speeds as mode 4. Your operator manual should show you how to do this also.
  • Posted 2 Mar 2015 09:51
  • Reply by swoop223
  • North Carolina, United States
You've been swooped!
swoop223@gmail.com
Yes, normally it stops lifting, but drives normally till recharging. It recharged normally. But still goes slow.

So, can I get into service menu...save some $ and do it myself!
  • Posted 2 Mar 2015 03:58
  • Reply by FiascoDave
  • Oregon, United States
well one of the worst things one can do is 'fiddle' with a lifttruck, especially if one does not know what they are doing :o/

if display is not displaying any codes or has any indicator lights on for the drive system then all we can do is guess what is wrong.

Generally when the BDI gets low the lifttruck will slow itself down to save power to allow you to make it to the charging station to recharge the battery. This is what it sounds like happened but after recharging the battery it did not reset when the fully charged battery was re-plugged back into the machine.
Question: the BDI did reset back to full correct?

If it did reset and the lift is still driving in 'limp mode' then it sounds like you need a service tech to come and take a look at what your other guy MIGHT have accidentally changed IF he did happen to gain access to the service menu.
  • Posted 2 Mar 2015 02:34
  • Reply by swoop223
  • North Carolina, United States
You've been swooped!
swoop223@gmail.com

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