User Manual

WHEATHEART - X13 SERIES AUGERS 3. ASSEMBLY

X1374, X1384, X1394 3.5. INSTALL BOOT BEARING, LOWER SPROCKET, AND DRIVE CHAIN

30787 R1 31

3.5. INSTALL BOOT BEARING, LOWER SPROCKET, AND

DRIVE CHAIN

See Table 3.5. for a list of parts required to install the boot bearing, lower

sprocket, and drive chain.

1. Install the lower sprocket as follows:

a. Slide the 2” wide rim flat washer onto lower flight shaft.

b. Slide the lower bearing over the flighting shaft, and bolt it loosely in place

with four 5/8” X 2” bolts and 5/8” locknuts.

c. Ensure that the flight shaft shoulder is seated against washer and lower

bearing.

d. Position the lock collar tightly against the bearing, then tighten the collar set

screw against the flighting shaft.

e. Install the 3/8” x 3-3/8” square key on the flighting shaft, then slide the

lower sprocket onto the flighting shaft. Align lower sprocket face with upper

sprocket face using a straight edge, then tighten set screws.

Figure 3.7 Installing Boot Bearing, Sprocket, and Chain

Table 3.5. Parts Required, Installing the Boot Bearing, Lower Sprocket, 

and Drive Chain

Part Number Description Amount

20084 2” rim washer 1

20015 2” lower bearing, 4-bolt flange, lock collar 1

18541 Square key, 3/8" x 3-3/8" 1

18525 Lower sprocket, 80b18 x 1-3/4” 1

19781

19134

Drive chain (80b37 roller chain)

#80 chain connector

19991 5/8” x 2” bolts 4

19600 5/8” locknuts 4

2” RIM WASHER

DRIVE

5/8” X 2” BOLTS

5/8” LOCKNUTS

LOWER

SPROCKET

SQUARE KEY

LOCK COLLAR

LOWER BEARING

CHAIN

AND FLANGE