Frame Mounted Single-Disk Fertilizer Opener Maintenance

A57664
A57663


A-Shear Bolt
B-Adjusting Arm


C-Snap Ring
D-Wheel and Shaft


E-Set Screw, 2 used
F-Nut


G-Bearing and Blade Assembly

The anti-friction bearing has a face-type seal. The contact of the seal against a machined surface retains grease and excludes dirt. Bearing MUST be in proper adjustment for the seal to be effective.

1. If there is any play in the disk bearing, remove shear bolt (A), adjusting arm (B) and snap ring (C).

2. Remove wheel and shaft (D).

3. Loosen set screws (E) and remove nut (F).

4. Remove bearing and blade assembly (G). Clean and repack bearings with John Deere TY6341 multipurpose SD polyurea or equivalent SAE multipurpose grease.

NOTE: During assembly, tighten nut (F) until 2 N·m to 5 N·m (17 lb-in. to 44 lb-in.) of torque is required to rotate the bearing and blade assembly (G). This drag assures positive sealing. Tighten set screws (E) when adjustment is complete. These anti-friction bearings are packed with grease at the factory. After the first 10 hours inspect the bearing and adjust, if necessary.

5. Install opener and tighten nut (F), while spinning disk, until the proper bearing preload is achieved.

6. Tighten set screws (E) to specification.

Bearing and Blade Reassembly - Specification

Hub Rotation Preload -Torque 2 N·m to 5 N·m (17 lb-in. to 44 lb-in.)
Set Screws (E) -Torque 9.6 N·m (85 lb-in.)

7. Lubricate surface of gauge wheel axle to prevent rusting and to keep depth adjustment working properly.

8. Re-install wheel and shaft, snap ring, arm, and shear bolt.

Every 100 hours, inspect the bearing and adjust, if necessary. Every 200 hours, or before each planting season, whichever comes first, disassemble the bearing, clean and repack it as outlined above. Do not use chassis lubricant in anti-friction bearings.

OUO6074,0000EB6 -19-17MAR06-1/1