ADS Environmental Services FlowAlert QR 775011 A2 - Manual (Page 158)

6-6 ADS FlowAlert Manual
Mounting the Monitor to the Manhole
Rim
Mount the monitor to the manhole rim in the following way:
1. Determine the appropriate location to mount the monitor
handle (i.e., bracket) (ADS p/n I40-0003/9) to the inside of the
iron manhole rim. This mounting bracket will connect to the
welded flange on the monitor housing. Consider the following
when selecting the proper location:
 Select a location that will allow you to remove the monitor
easily during service visits using the mounting bracket.
 Select a location that provides only a minimal potential for
the monitor to experience surcharge conditions.
 Select a location that will prevent the manhole lid from
potentially damaging the monitor during removal or when
rotating in the opening.
 Select a location that will allow personnel to enter/exit the
manhole without removing the monitor.
2. Hold the keyhole at the top end of the bracket against the lower
inner rim of the manhole, and mark the location for the
stainless steal stud through the keyhole in the bracket. Make
sure there will be enough room to lift the bracket up and over
the stud when installed.
3. Drill a hole(s) into the manhole rim 1 inch deep using a 5/16-
inch carbide-tipped drill bit.
Note: Consider starting the hole using smaller bits to
make pilot holes and increasing up to a 5/16-inch bit. In
addition, spray cutting oil or another lubricant into the hole
while drilling and tapping.