I have a 1957 d14. When i parked the tractor a couple months ago it moved fine. We had snow in october i went out to plow the snow the tractor ran fine but would not move forward or backwards when moving the power director...All oils seem fine..i tried it again several days later when warmer still no movement(i thought something may have been frozen). I was reading these post when i noticed some of you describing a high, neutral and low position....when it was working fine i moved the lever forward and the tractor moved forward when i moved the lever to the rear position the tractor moved in reverse....in any gear 1-4...i have only owned this tractor a short time..is this normal? What could be my problem?? Thanks in advance for any replys..this is a great forum