Installing Knives

CC017088


A-Knife
B-Wear Shield


C-Lock Nut


D-Disk


E-Knife Bolt

causym CAUTION: If nut is installed incorrectly, it cannot be tightened sufficiently, which may lead to loss of knife and bolt during operation.

IMPORTANT: Always use genuine John Deere knives. Replace each special knife bolt and special lock nut when it has been removed and reinstalled five times.

1. Clean mounting area.

2. Install knife (A) as follows:

  • New knife : Install knife with bevel side of cutting edge facing towards ground.
  • Reversing worn knife : When the initial cutting edge is worn (see Checking Knife Wear in this section), the knife may be reversed on the same disk at the same location with bevel side of cutting edge facing upwards.

3. Fasten knife (A) and shield (B) with knife bolt (E) and lock nut (C). Make sure knife bolt is correctly seated in disk hex.

4. Tighten lock nut (C) to specifications.

Specification

Knife Bolt Lock Nut -Torque 150 N·m (110 lb-ft)

5. Make sure knife rotates freely on the bolt.

OUCC006,00002A8 -19-16NOV00-1/1