Repairing the PreTeC mulch seeding coulter with the coulter carriage

PREREQUISITES

  • Firm and level hall floor

  • Coulter carriage

  • Protect the tractor from unauthorized operation

  • Instruct uninvolved persons to exit the danger zone

  • Machine is lifted out

  1. Remove the bracket 2.
  2. Remove the conveyor hose 1 from the fertilizer coulter 3.
  3. Disconnect the air supply on the singling unit.
  1. Set the fertilizer placement depth to the topmost position.
  2. Set the mechanical coulter pressure to the highest value.
  3. Set the seed placement depth to parking position P.
  4. Set the pitch of the V-press rollers to the A position.
  5. Lift out the machine.
  6. Position the transport dolly 2 under the coulter to be removed.

  7. To set down the coulter with the depth control wheels 3 in the transport dolly:

    Carefully lower the machine.
  8. Hook the straps 1 into the coulter.

  9. To set down the coulter with the depth control wheels 3 in the transport dolly:

    Carefully lower the machine.

Carrier rollers must be in the transport dolly.

Straps must be tension-free.

The coulter receptacle must be offloaded.

  1. Remove the coulter clamp 1.
IMPORTANT
Machine damage due to collision with the coulter mounting bracket

When the machine is lowered:

Have a second person observe the coulter mounting bracket.
  1. Carefully lower the machine further.

The straps hold the coulter.

The coulter mounting bracket 1 is free of load.

  1. Detach the coulter from the frame 2.

  1. Dismount the journal bearings 1.

  2. To ensure that the new journal bearings rest full-surface on the coulter mounting bracket:

    Clean the coulter mounting bracket.

  3. Mount new journal bearings.

  1. To ensure that the coulters are firmly seated, long-term:

    Clean the frame and the coulter mounting brackets.
  2. Guide the transport dolly with the coulter 1 into the desired position on the frame 2.
  3. Slightly lift-out the machine.

Coulter must be in the transport dolly.

Straps must be tension-free.

The coulter mounting bracket must be free of load.

  1. Ensure that the coulter receptacle 2 is aligned parallel to the profile rail 3.

  2. Ensure that all journal bearings 1 rest on the profile rail.
NOTE
Tighten the coulter clamp with the coulter receptacles offloaded.
IMPORTANT
Frame damage due to loose coulter clamp
After one hour of operation, check the bolts for firm seat.

  1. On telescopic coulters:

    Tighten the bolts 4 to 118,01 ft-lb (160Nm) -180°

or

On non-telescopic coulters:

Tighten the bolts to 147,51 ft-lb (200Nm).

  1. Lift out the machine further.
  2. Remove transport dolly.

  3. To replace additional journal bearings:

    Repeat steps 1 to 26.
  4. Mount the supply hoses on the singling unit.
  5. Mount the supply hoses on the fertilizer coulter.
  6. Establish the hydraulic supply, Establishing the energy supply.
  7. Establish the energy supply, Establishing the hydraulic supply.