I can't move forward and backward on a 4.5 ton forklift ...[4.5톤 지게차 전후진 안되는데...]

I purchased a forklift that cannot be moved back and forth.
전후진 불가한 지게차 구매했습니다.

지게차수리,forklift,지게차밋숀,Forklift mission,