Rice Lake MS202 Portable & Permanent Monorail - Manual (Page 3)

1
Introduction
The MS200 Monorail Scale is for portable use and is
designed to bolt onto a straight section of either
3 /
8
" x
2 1 /
2
" or 1 /
2
" x 2 1 /
2
" rail. The overall length of straight rail
required for the scale and ramps is 41". The scale body
requires a 22" space between existing support hangers.
The MS202 Monorail Scale is for permanent use and
comes with 52" of either
3 /
8
" or 1 /
2
" rail. To install,
remove a straight section of rail, then cut the MS202 rail
to replace the section removed.
Note: You can remove
a section as short as 14". Because the usual hanger
spacing of many existing mechanical scales is 48", most
often installers remove a 48" section of rail, and cut 48"
of the MS202 rail to fit between the existing hangers. We
recommend placing a new hanger near the scale to
reduce flexing and twisting within the 48" span.
On both models, the live section of scale is 8" long with
a slight concave dip so a trolley wheel will settle into the
dip. Only one trolley at a time will fit on the 8" live
portion of the scale.
1.0 Pre-Installation Checks
Before installing the portable monorail scale, check the
trolleys used in the plant to ensure there is adequate
clearance between the top of the swivel hook and the
bottom of the scale. See Figure 1. Check with the plant
operator to make sure all trolleys in use meet these
requirements.
4.50
2.50
2.00
Figure 1: Minimum Clearances for Trolleys
2.0 Portable Installation
1. Select a location for installation with at least 41"
of straight rail section. Avoid locating the
approach ends of the scale close to bends or
corners of the rail system. If the rail hangers
have less than 22" of space between them, move
one of the hangers to acheive the 41" clearance.
21.0"
8.0"
4.50"
Top of
Ramp
8" Live
Rail
1.125"
41.0"
Figure 2: Portable Scale Dimensions
2. To begin installation, loosen, but do not remove,
the four top bolts (Figure 3, A, top of next page)
of the scale bracket. Remove the four lower
bolts (Figure 3, B, top of next page) of the scale
bracket. Slide the scale unit over the rail with the
load cell bracket toward the rail-hanger side of
the rail. At this point, move the scale left or right
along the rail to the desired location.
3. The installation kit provides two 1 /
16
" shims,
2- 1 /
2
" x 20" long for use with portable monorail
scales on rails that are 3 /
8
" thick. If the rail you
are using is 3 /
8
", place one shim on each side of
the rail. If using a rail which is 1 /
2
" thick, you do
not need the shims and may discard them.
4. Replace the four lower bolts when scale is in the
desired position. Before tightening all eight bolts,
be sure the scale body is contacting the rail
evenly along the entire length of the scale.
5. After tightening the bolts, check the alignment
of the ends of the approach ramps with the rail.
If the rail is not straight and true, correct the
alignment by loosening the bolts and inserting
pieces of shim stock between the rail and the
bracket. Do this on a "cut-and-try" basis until the
alignment looks smooth. When satisfied, tighten
all eight bolts.