42
2. RIM DRILLING INSTRUCTIONS FOR WHEEL DRIVE SPEED
SENSOR MAGNETS
On wheels which do not have pre-punched mounting holes, proceed as follows:
RIMS WITH FOUR OR EIGHT HOLE STUD PATTERN:
Choose stud holes that are opposite each other as shown in Figure 16A. Using the center of opposite
holes, scribe two lines on the rim web to divide the circumference into four equal parts. Measure
in one inch from the outer edge of the web on each of the lines drawn. Mark this point as the center.
Drill four 1/2" holes for mounting the magnets.
NOTE:Distance (D) between each set of drilled holes must be equal within
1/8" [3 mm] to ensure accuracy of system.
RIMS WITH SIX HOLE STUD PATTERN:
Locate the center of the holes to be drilled by using the rim webbing as a guide. (See Figure 16B).
Obtain a small piece of wood and cut to fit exactly over the web as shown in Figure 16B. Measure
the length of the piece of wood and mark the center on one edge. Using the center mark on the piece
of wood, mark each of the four webs. Measure in one inch from the outer edge of the web on each
of the lines drawn. Mark this point as center and drill four 1/2" holes for mounting the magnets.
NOTE:Distance (D) between each set of drilled holes must be equal within
l/8" [3 mm] to ensure accuracy of system.
FIGURE 16B
SIX HOLE STUD PATTERN
FIGURE 16A
EIGHT HOLE STUD PATTERN
To Next Page
Loading...
