10/10 02761A1 1031655–1
5/16” x 2 1/4”
Roll Pin
Use four 3/8” x 1” (gr. 5) bolts, lock washers, non-
lock nuts and 1/4” spacer plates to attach the
sprocket housing and tube guide to the housing
mount [make sure 1/4” spacers (Ref. No. 9) are in
position as shown].
3/8” dia.
Hole
Attach handle to sprocket
shaft with 1/4” x 2” bolt
and non-lock nut.
Use six 5/16” x 1 1/2” (gr. 5) bolts
and non-lock nuts to secure
mount to half-band.
3/8” x 1 1/2”
Roll Pin
1/2”
If necessary, drill a 3/8” dia. hole in center
of the 1/2” control rod. Position hole 1/2”
from end of rod.
Center
Bin Well Gate
Control Rod
PART
NO.
REF.
NO. DESCRIPTION
1 631134 Rack & Pinion Housing Weldment
2 1034202 Rack & Pinion Chain Shaft
3 1012344 #60 Sprocket, 13 tooth
1” bore (w/pin hole)
4 1012729 Sprocket Shaft
8” RACK & PINION BIN WELL CONTROLS
18 Inch Travel
Publication No. 1031655
1. From outside the bin, locate the center bin well control rod directly above the unloading tube, verify the center
well gate is closed. If necessary, drill a 3/8” dia. hole in the control rod 1/2” from the end of the rod (NOTE:
some control rods are predrilled and do not require drilling of the hole). Attach the rack & pinion chain
shaft to the end of the center well rod and secure with the 3/8” x 1 1/2” roll pin.
2. Using six 5/16 x 1 1/2” bolts and non-lock nuts, loosely attach the housing mount and 6” wide half-band to
the unload tube (the housing assembly will be properly positioned during final assembly).
3. Set the tube guide (with curved side down) on top of the housing mount and place the tail end of the chain
shaft onto the guide. Reposition the half-band and housing mount so the end of the chain shaft is flush with
the back side of the housing mount. Secure half-band and housing mount.
4. Attach the handle to the sprocket shaft using one 1/4” x 2” bolt and non-lock nut. Partially insert the shaft
into the side of the rack & pinion housing and install the two 1” I.D. flat washers and sprocket (sprocket hub
and washers should face towards the handle). Slide the shaft through the other side of the housing and
secure the sprocket using the 5/16” x 2 1/4” roll pin.
5. Place the 1/4” spacer plates between the tube guide and sprocket housing assembly, and position sprocket
assembly on top of the guide (make sure the teeth of the sprocket are properly positioned in the chain shaft).
7. Secure the assembly to the housing mount using four 3/8” x 1” bolts, lock washers and non-lock nuts.
PART
NO.
REF.
NO. DESCRIPTION
5 1012727 Handle Weldment
6 552941 Tube Guide
7 6025A1 Housing Mount
8 5029A1 Half-Band, 6” wide
9 1037931 Spacer Plate, 1/4”
2
1” I.D. Flat
Washers
3
1
5
4
9
6
7
8
10/10 02760A1 1031655–2
BIN WELL
CONTROL OPERATION
1. Verify all bin wells are closed.
To open the center well gate, turn the
handle to pull the center well control pipe
out away from the bin, the center well
control pipe will slide inside the control
pipe for the intermediate well(s).
To close center bin well, turn handle in the
opposite direction.
NOTE: The square attachment on the
handle allows the handle to be removed
and reinstalled if operation of the handle
would otherwise be restricted causing it
not to complete a full circle.
Open/Close Center Bin Well
Control Pipe for
Intermediate Well(s)
Control Pipe for
Center Well
Rack & Pinion
Control Assembly
Bin Wall
All Bin Wells Closed
Center Bin Well Open
2. To operate the intermediate well gates,
fully close the center bin well gate.
Align the holes in the center well control
pipe with the holes in the intermediate
well control pipe.
Install the 5/16” x 2 1/2” bolt through the
holes and secure with the 5/16” lock
washer and non-lock nut provided.
Now when the handle is turned, both the
center and intermediate well gates will
open or close together. Remove the bolt
to operate only the center well gate.
NOTE: Intermediate well(s) should not be
opened until the bin has emptied to
where grain will no longer flow into the
center well.
Intermediate Well Operation
Center Bin Well Closed
Install 5/16” x 2 1/2” Bolt to Connect
Intermediate Well Control Pipe to
Center Well Control Pipe
Intermediate Well(s) and
Center Well Gates Open
/
