ADS Environmental Services Model 4000 530017 A0 - Manual (Page 62)

Monitor and Sensor Installation 3-39
screwing it back into the hole. Lubricate the hole between
threading.
6. Place two 9/16-inch (14-mm) nuts (with a washer in between)
onto one end of the 3/8- × 2-inch (8- × 50-mm) stud.
Placing two nuts and a washer onto the stud
7. Using two wrenches, turn the inner nut counter-clockwise and
the outer nut clockwise simultaneously to bind the two nuts
together on the stud.