OPERATION EXPLANATION OF COMPONENTS 3. Pull lock pins (A) at the top left and right sides of the front window to the inside to release the lock. 4. Hold the top grip with your right hand, pull it to the front to remove the top of the front window from the frame, then set it on the rail of the top roller. 5. From the inside of the operator's cab, hold the bottom grip with the left hand and the top grip with the right hand, pull up the window, and push it in fully until it is locked by catch (C). 6. Lock with lock pins (A) on the left and right sides. 3-21