Great Plains 2007HD Update Installation - Manual (Page 21)

Great Plains Manufacturing, Inc. Table of Contents Index Update Meters 17
05/25/2011 Table of Contents Index 166-370M
Enlarge Mounting Slots
Refer to Figure 26
The previous
3 ⁄
8
in (9 mm) mounting bolts are replaced
with new
1 ⁄
2
in (13 mm) bolts. The new mounts (not
shown) have 13.5 mm slots, but the existing slots in the
meter sidewalls do not. They need to be enlarged.
82. Use a cutting wheel, die grinder, or any suitable tool
to enlarge the six 10 mm slots to 13.5 mm.
Enlarge down (away from the top edge of the meter
sidewall). In the Figure, cut away the gray area.
Drill Weep Holes
Refer to Figure 26 and Figure 27
83. Mark the meter top panel for six hole positions
.
Each hole is to be 6 to 7 mm in diameter (
1 ⁄
4
in). The
location needs to be clear of the existing outer
flange, and clear of the front and back meter faces
under the top panel (so that any future drainage is
outside the meter, and so that the weep holes do
not compromise air pressure control inside the
meter).
84. Drill and de-burr six holes.
Figure 26
Mounting Slot Enlargement
Q0108
Previously:
10 mm
(0.41 in.)
Enlarge to:
13.5 mm
(0.53 in.)
2 2
919
Figure 27
Top Panel Weep Holes
Q0103
2
2
2
2
2
2
2