Exmark UltraVac 126-8680 Setup Instructions page 6

Assembling the Tubes
1. For 60 inch decks, shorten the upper tube.
A. Locate the three holes in the upper tube. Measure
6 1/2 inches (165 mm) up from the end of the
tube and mark the location in all three areas (see
Figure 12).
1. New hole location
2. Measure 6 1/2 inches (165 mm)
3. Measure 3–3 1/2 inches (76–89 mm)
4. Cut tube
B. Drill three 3/16 inch (4.8 mm) diameter holes.
C. Measure 3–3 1/2 inches (76-89 mm) from the
end of the tube, create marks, and apply masking
tape around the tube as a guide.
D. Carefully cut the tube and discard the end.
2. Slip the upper and the lower tubes together.
3. Insert the upper tube into the hopper seal – push in
then pull out so that the seal is extended outward.
4. Align the dimple on the upper tube with the end of
hopper seal and center between the two screws as
shown in Figure 13.
1. Dimple
5. Set the deck in lowest cutting position.
Figure 12
Figure 13
6. Slide the lower tube onto the blower and attach the
latches. (Make sure that the upper tube does not
move out of alignment).
7. Drill the 7/32 inch (5.6 mm) diameter holes in the
lower tube using the upper tube holes as reference.
See Figure 14.
8. Remove the tubes from unit and assemble the upper
and the lower tubes using three #10-24 x 3/4 inch
hex washer head screws, three #10 washers, and
three #10-24 nyloc nuts. The screw head should
be installed to the inside of the tube to provide
minimum obstruction to flow. Make sure that the
upper and the lower ends are oriented properly as the
tubes are assembled. (Parting lines should roughly
be lined up.)
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1. Drill the holes here
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Figure 14
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