Work vehicle having engine drive checking circuit

A work vehicle comprising:

• an engine controller driving an engine;
• a plurality of check switches that are switchable between a safe position corresponding to safe drive of the engine and a non-safe position, the plurality of check switches including at least a first check switch and a second check switch;
• a power supply line having a power supply relay, the power supply line supplying electric power to the engine controller when the power supply relay is ON;
• a first power supply control line incorporating at least the first check switch and a first relay, and a second power supply control line incorporating at least the second check switch and a second relay, the first power supply control line rendering the first relay ON when at least the first check switch is switched to the safe position and the second power supply control line rendering the second relay ON when at least the second check switch is switched to the safe position;
• a display for displaying a switched state of each of the plurality of check switches, the display indicating that the work vehicle may be driven safely;
• and
• a plurality of display signal lines respectively connecting each check switch of the plurality of check switches to the display, each display signal line of the plurality of display signal lines transmitting a signal indicative of the switched state of the respective check switch.