18
Adjusting the Lower and Upper Flighting
WARNING
MAKE SURE THAT ALL POWER IS SHUT OFF BEFORE ADJUSTING THE FLIGHTING ASSEMBLY.
LOWER FLIGHTING
- If the drive-dog and hanger assembly are becoming excessively hot during unloading, the lower flighting and/or
hanger may need adjusting. The hanger bushing assembly has elongated holes where it attaches to the outer tube assembly. Loosen the
two 1/2” bolts on the hanger bushing assembly. Adjust the hanger either up or down and vertically center it between the flighting and
drive dog. Re-tighten the bolts. Make certain that the flighting center and drive-dogs do not rub the hanger bushing assembly, causing
them to become hot.
If the hanger can no longer be adjusted by moving it up or down on the elongated holes, both the hanger bushing assembly and the
lower flighting will have to be removed. After removing them from the tube assembly, place a shim [between 1/8” (0,32cm) to 3/16”
(0,48cm) thick] where the gearbox and the spline coupler (welded to the lower flighting). Replace the lower flighting and reattach the
hanger to the tube assembly. Readjust the hanger assembly. NOTE: The bottom of the lower flighting is not attached to the gearbox with
any bolts or set screws but may be ‘frozen’ fast. Be careful when removing the lower flighting from the gearbox. For easier removal of the
lower flighting, keep the gearbox at the bottom intact, remove the two 1/2” bolts from the hanger bushing assembly and pull the lower
flighting off of the gearbox.
After adjusting the lower flighting, move the upper auger to the unload position and check the upper flighting for readjustment.
UPPER FLIGHTING -
If the upper and lower augers to do not properly separate during the unfolding sequence, the upper flighting
may need adjusting. Before making adjustment to the upper flighting, check to see if the lugs and drive dogs on the auger assemblies are
locking together. If they are not locked together, check to see if a faulty check valve on the hydraulic cylinder used to raise and lower the
upper auger assembly may be causing the problem.
Fold the upper tube assembly into the upright position. Position the upper flighting in the engaged position with the lower flighting.
Locate the four-hole flange bearing on the top of the upper auger tube housing. With the upper flighting in the engaged position, check
the spacing between the upper bearing and the upper tube housing. There must be an 1/8” (0,32cm) space between the base of the four-
hole flange bearing and the upper tube housing. If there is NOT a space between the bearing and the upper tube housing, or if there is
more than 1/8” (0,32cm) space, the upper flighting will need to be adjusted. To adjust the upper flighting, loosen the 1 1/4” hex nuts both
above and below the four-hole flange bearing. Move the 1-1/4” hex nuts up or down the threaded shaft on the top of the auger flighting
shaft until the bearing moves to approximately 1/8” (0,32cm) above the base of the upper tube housing. When the four-hole flange
bearing is properly located, tighten both 1-1/4” hex nuts together to secure the bearing position.
If the upper and lower flighting still does not separate properly during the folding sequence, a small bevel may need to be removed from
the inside of the lugs where they engage the drive dogs on the auger assemblies. Grind approximately 1/8” (0,32cm) from the corner of
the lugs where they touch against the drive dogs.
1.
Untighten the
1-1/4” hex nut at
least 1/4”.
2.
Tighten the 1-1/4”
hex nut until there is
a 1/8” to 3/16” gap
between the 4 hole
flange bearing and
the headpan.
1/8”-3/16”
3.
Tighten the 1-1/4”
hex nut back up.
Adjusting Upper Auger
