Crawler construction machine

A crawler construction machine comprising:

• an engine;
• working equipment;
• and
• a fuel adjustment dial that adjusts a speed of the engine according to operations of the working equipment, wherein
• the fuel adjustment dial is a rotary notchless dial that is continuously variably adjustable, and
• the crawler construction machine further comprises:
• an adjustment position detector that detects a rotation adjustment position of the fuel adjustment dial;
• an engine controller that is connected to the adjustment position detector and controls the speed of the engine based on an adjustment position of the fuel adjustment dial outputted from the adjustment position detector;
• and
• a display device that is connected to the engine controller and displays on a screen the adjustment position of the fuel adjustment dial, which is outputted from the engine controller, in percentage in which a maximum rotation position of the fuel adjustment dial is defined as 100%.