EE WAS OPERATING A SCOOP AND PUSHING A COAL HAULER TO THE BATTERY CHARGING STATION. THE EQUIPMENT BECAME ENTANGLED AND SUDDENLY FREED UP, WHICH RESULTED IN A SUBSTANTIAL JOLT. EE'S HEAD WAS TH RUST UPWARD INTO THE CANOPY AND HE WAS MOMENTARI7LY DAZED AND THIS WAS FOLLOWED BY COUPLE OF MINUTES OF TINGLING SENSATIONS IN HIS EXTREMITIES.