Great Plains EWF13 User Manual
Great Plains Mfg., Inc.
Update Instructions
EWD13 and EWF13
Sprocket Box Update
Used with:
13-Foot, End-Wheel Drills
•
When you see this symbol, the subsequent instructions and
warnings are serious - follow without exception. Your life and
!
the lives of others depend on it!
General Information
These instructions explain how to install and adjust the sprocketbox update. The sprocket box replaces the original gearbox on
Great Plains end-wheel drills. This modification improves the
performance and reliability of the original equipment.
Assembly Instructions
Disassembling the Gearbox
1. Remove end-wheel-output and gearbox-output chains.
2. If your drill has 7-, 8- or 10-inch row spacings, you must install a new opener-lift arm and remove the existing arm. If
your drill has 6- or 7.5-inch row spacings, proceed to step
To reposition the opener-lift arm, refer to Figure 1-1.
a. Assemble the clamp on the square opener shaft (1).
Place the channel bracket (2) over the link arms (3). Position the clamp 6 7/16 inches from the frame plate. Secure to shaft with the mounting strap (4), 5/8-inch
washers and bolts.
b. Using a 3/4-inch clevis and cotter pin, pin the link arm
(5) to the newly installed clamp.
These instructions apply to
152-207A 13-Foot EW Sprocket Box Update Kit
Manual Update
Pages 4 and 5 of these instructions cover how to adjust the seeding rate with the new sprocket box. These instructions replace
the "Clutch Shaft and Miter Gear Alignment" and "Seed Calibration" sections in the operator’s manual originally provided with
your drill. As reference, save pages 3 and 4 of these instructions
with your operator’s manual. A copy of the updated parts manual
is available through your Great Plains dealer.
Refer to the drill operator’s manual for detailed information on
safely operating, adjusting, troubleshooting and maintaining the
drill. Refer to the drill parts manual for part identification.
• 13-Foot End Wheel Drill Operator’s Manual . . . . . . . . . . . . . . . . . . . 175-083M
• 13-Foot End Wheel Drill Parts Manual . . . . . . . . . . . . . . . . . . . . . . . 175-083P
Before You Start
Page 6 is a detailed listing of parts included in the sprocket-boxupdate kit. Use this list to inventory parts received.
c. Weld the mount collar (6) and double ears (7) on the
pivot tube (8) so you can pin the link arm to the ears.
Use the link arm as a guide to properly position the collar and ears on the tube. Refer to Figure 1-2 for general
dimensions.
3.
Figure 1-1
Opener Lift Arm
© Copyright 1998 Printed 2/24/98
16597
16598
Figure 1-2
Weld and Torch Diagram
d. Pin the link arm to the double ears using the 3/4-inch
clevis and cotter pins.
e. Remove existing opener-lift arm (9) by torching off the
double ears (10). Cut the ears 1/4 inch above the pivot
tube. Disassemble the existing opener-shaft clamp.
Discard all disassembled parts.
f. Spray paint the pivot tube with the paint provided. Thor-
oughly cover the welds and any paint damage.
152-208M
1
Assembly Instructions
Great Plains Mfg., Inc.
Refer to Figure 1-3.
3. Disassemble acremeter. Unscrew acremeter (1) off shaft.
Remove the 5/16-inch bolts (2), washers and nuts (3). Re
move bearings (4). Save acremeter, bolts, washers, nuts
and bearings for later reinstallation.
16507
Figure 1-3
Acremeter Disassembly
Refer to Figure 1-4.
4. Remove jackshaft. Remove snap ring and miter gear (1)
from gearbox end of shaft. Disconnect clutch link arm (2)
from clutch (3). Slide shaft (4) out of bearings, clutch and
side wall. Save clutch for later reinstallation.
Refer to Figure 1-5.
5. Remove gearbox. Remove 1/4-inch bolts (1), washers and
-
nuts (2) that hold the gearbox cover on mounting plate. Re
move the bolts and washers (3) that hold the bearing bracket
to the mounting plate and gearbox transmission. Remove
the snap ring and miter gear (4). Lift the gearbox off the
mounting plate.
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16508
16509
Figure 1-5
Gearbox Removal
Figure 1-4
Jackshaft Removal
EWD13 and EWF13 Sprocket Box Update 152-208M 5/2/06
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