ADS Environmental Services FlowShark QR 775003 A2 - Manual (Page 90)

Sensor Installation and Connection 3-33
Surcharge mount
2. Press the bracket firmly against the manhole wall.
3. Identify the three pre-drilled holes at the top of the bracket, and
spot drill the manhole wall through the middle hole with a drill.
4. Remove the bracket, and drill and mount a ¼-inch x 2 ¼-inch
(M6 x 55-mm) anchor bolt.
5. Secure the top of the bracket to the manhole wall with a washer
and nut.
6. Push up on the bottom portion of the bracket until the sensor
portion of the bracket is level.
7. Hold the bracket firmly in place against the manhole wall.
8. Identify the three pre-drilled holes at the bottom of the bracket,
and spot drill the manhole wall through the middle hole with a
drill.
9. Rotate the bracket 90 degrees, and drill and mount a ¼-inch x 2
¼-inch anchor bolt.