9
Auger System
Bottom Auger
The bottom auger is replaced by sliding the auger downward through the housing tube. The auger
may need to be turned to align the bottom drive pin with the matching holes in bottom drive plate.
Make sure the bottom drive pin is completely engaged in bottom drive plate. Replace the hanger
bearing. Make sure it is reinstalled as it was originally and that it does not bind on the auger pilot
shaft. There should be approximately 1/8" clearance between the bearing and the pilot shaft.
NOTE:
It is NOT necessary to remove the bottom drive plate to remove the bottom auger.
Item Qty Part No.
Description
1
1
640102
Hanger Bearing
2
2
01147800 HHCS ½" x 1½"
3
2
330159
Flat Washer ½"
4
1
607457
Drive Collar
5
2
311670
Key ½" x 1 3/4”
6
2
337998
Screw 3/8" x 1" Socket Hd
7
1
337840
Snap Ring 2½" External
8
1
968081
Bottom Flighting
607861
Flighting Only
Item Qty Part No.
Description
9
2
330134
Hex Nut ½"
10
1
640847
Bottom Auger Weldment
11
1
311647
Bottom Drive Pin
12
1
873554
Bottom Drive Plate
Assembly
13
4
336164
Carriage Bolt 5/8" x 2½"
14
4
01572700 Nylock Hex Nut 5/8"
15
1
403519
Bearing 2 1/4" 4B Flange
16
1
472407
Gearbox 50 Degree 1:6:1
Bottom Drive Plate
The bottom drive plate installs on the gearbox output shaft by means of a special splined bushing
that is welded to the plate. It rests on the bottom bearing so the weight of the auger does not rest
on the gearbox itself. There should be approximately 1/4" space between the bottom drive plate
and the boot plate on the bottom of the auger housing.
The drive plate must be removed to change seals on the gearbox or do other repairs to the
gearbox. To remove the bottom drive plate, first raise the bottom auger off the drive plate. There
is a stainless steel bolt located on top of the drive plate bushing. After releasing the installed jam
nut, screwing this bolt in will push the bottom drive plate off the gearbox shaft. When re-installing,
screw the bolt out within 1" of the end. Tighten the jam nut. Make sure the bolt is secure with the
jam nut before replacing the bottom auger. DO NOT screw bolt in so far that it pushes on the
gearbox output shaft.
Item Part No.
Description
1
640151
Bottom Drive Plate
2
332288
Hex Jam Nut 1"
3
338202
Tap Bolt 1" x 6" SS
