English to Bulgarian Tech/Engineering Construction / Civil Engineering concrete screeding machine

This grade reference should be used to take your benchmark. Once you find the grade reference, extend the grade stick so that the receiver is high enough to reach the rotating beam of the laser transmitter when the grade stick is sitting on the grade reference. Hold the grade stick over the grade reference point and high enough so that the receiver is above the transmitter's reference beam...

Не съм сигурна в превода си. Вече съм убедена, че текстът е писан от различни хора и едно и също нещо е назовавано по няколко различни начина. Но МНОГО се държи на 'consistency of translation', нали?
Предварително благодаря!