Hi everyone!
We have Linde H120D forklift (2007 year). S/n E1X354U00044.
A couple of days ago, the forklift completely lost control, the instruments went out, and the engine stalled.
It turned out the ignition fuse had blown.
We replaced it (5A), and everything worked again. Three or four minutes later, the fuse blew again. We replaced it again and installed a 7.5A one. Now the instruments and display work, but the forklift won't start.
We don't have a diagnostic computer to check what's wrong.
We loosened the nuts on the fuel supply lines (Perkins 1106 engine with an electronically controlled high-pressure fuel pump, not a common rail). It's clear that diesel fuel is reaching the injectors, but it seems there's not enough pressure, as there's no smoke when turning the starter.
We checked the power supply to the ECM-it's there, and it's reaching the high-pressure fuel pump. Does anyone know what the problem could be? Some sensor that signals the pump or something else.
I have attached a diagram of the fuses and relays, as well as an information plate.
Showing items 1 - 3 of 3 results.
I have not. These 2 were cable operated machines for accelerating. Sounds like a harness issue again. Wondering if it's in limp mode and needs another issue corrected. Should be able to see if there's an DTC code or any code for what's happening. Maybe another fuse or pot issue on the pedal.
Thanks for your advice. A specialist from the authorized Linde dealer came yesterday. They had a diagram and redid the wiring. It turns out the ECM wasn't receiving a constant 12 volts, so the engine couldn't start.
Now the forklift starts, but the gas pedal doesn't work.
Have you encountered this?
The specialist checked the pedal to make sure it's working and sending signals to the ECM, but the signal isn't reaching the high-pressure pump.
Check on the engine side above the pump and make sure your fuel shut off solenoid is working. On/with key. Had a few of these opening partially and not allowing full fuel flow. Make sure your filters are good and no bacteria. The plastic tanks on these hold it well and today's fuel is very common to have bacteria. You will see this brown, red puss ontop of the filters if it's there or in the system. Check each fuse out of the holder and check each spot for the white corrosion. Had 2 H120's that decided to have this happen to. The pegs in the fuse compartment were of gray metal and were corroded on most terminals. Clean out and add die electric grease to each fuse. There's a few relays also to check for start inhibit etc. again check for the white corrosion.
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