Hi! Newbie here! I’ve got a Komatsu D31P-20 at work that either doesn’t turn right or very slowly turns right. The track doesn’t “hold.” Same in reverse. No issue while turning left. A co-worker thought he’d fixed the issue but to no avail. Any guesses as to what’s going on?
Check brake adjustment, check that the linkage under the seat is free as it's very common for the arms to get stiff, and if those are both in good working order then check the pressure on the little actuating cyl. If pressure is low, then check the joystick adjustment for full range of movement.