Replacing Disk Openers and Hub Assembly

Disk Openers

causym CAUTION: Disk openers are sharp. Use caution and wear protective clothing to avoid cutting hands.

METHOD ONE:

NOTE: Diameter of a new disk opener (G) is 457 mm (18 in.) Replace disk openers when diameter is less than 406 mm (16 in.) or if uneven seeding depth occurs.

NOTE: Clean dirt from parts prior to removal.

1. Remove gauge wheel from arm. See REPAIRING GAUGE WHEEL ASSEMBLY or REPAIRING SMOOTH-SIDED GAUGE WHEEL ASSEMBLY in this section for information.

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A46949


A-Depth Adjustment Arm
B-Triple Lip Seal
C-Inner Spacer
D-Nut
E-Seal Assembly


F-Lock Nut
G-Disk
H-Hub Assembly
I-Bolt
J-Grease Fitting


K-Lock Nut
L-Lock Nut
M-Cap Screw
N-Depth Gauge Handle Arm
O-Cover


P-Handle
Q-Compression Spring
R-Lock Nut
S-Cap Screw
T-Spindle

2. Place handle (P) in lowest possible slot.

3. Remove lock nuts (F).

causym CAUTION: Disk openers are sharp. Use caution and wear protective clothing to avoid cutting hands.

4. Remove disk opener (G) by maneuvering around depth adjustment arm (A).

5. Install new disk opener with beveled side towards hub.

IMPORTANT: Tire damage can occur if disk opener and gauge wheel are not correctly spaced.

6. Install previously removed parts. See CHECKING GAUGE WHEEL CLEARANCE-ALL GAUGE WHEELS in this section when installing gauge wheel.

METHOD TWO:

NOTE: Clean dirt from parts prior to removal.

Remove gauge wheel from arm. See REPAIRING GAUGE WHEEL ASSEMBLY or REPAIR SMOOTH-SIDED GAUGE WHEEL ASSEMBLY in this section for information.

1. Remove grease fitting (J).

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2. Remove cap screw (M), depth gauge handle arm (N), and depth adjustment arm (A).

causym CAUTION: Disk openers are sharp. Use caution and wear protective clothing to avoid cutting hands.

IMPORTANT: Do not damage triple lip seal on nut. Use care when removing and installing disk opener. Triple lip seal is not reusable, if the triple lip seal is removed or damaged. See your John Deere dealer.

3. Remove lock nuts (F) and disk opener (G).

4. Install new disk opener with beveled side towards hub.

IMPORTANT: Tire damage can occur if disk opener and gauge wheel are not correctly spaced.

5. Install previously removed parts. See CHECKING GAUGE WHEEL CLEARANCE-ALL GAUGE WHEELS in this section when installing gauge wheel.

Bearings

Bearing replacement requires a special tool and procedure. See your John Deere dealer.

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