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common wear parts cutting discs

Common Wear Parts

Maintenance Tips

Common Wear Parts

Maintenance Tips

Protect Your Investment

Inspecting Common Wear Parts

It is important to thoroughly inspect you harvest head to check for any worn parts that need to be replaced. Some parts especially, take a heavy beating during harvest and may need to be replaced more often than others.

Below is a guide for inspecting these common wear parts and determining if a replacement is needed.
Chopping Discs


Showing Signs of Wear

• Disc is worn down to a diameter ≤ 110 mm


In Good Condition

• Cutting edge coating is undamaged (> 110 mm)

Stationary Knives


Showing Signs of Wear

• Coating on cutting edge is worn
• Knife cannot be adjusted to 1 mm


In Good Condition

• Coating of the cutting edge is intact
• Knife can be adjusted properly

Rotating Knives


Showing Signs of Wear

• Cutting edge coating is worn
• Knife cannot be adjusted to 1 mm


In Good Condition

• Coating of the cutting edge is intact
• Knife can be adjusted properly

NorthStar Knives


Showing Signs of Wear

• Cutting edge is nicked or dull
• Knife can't be set to 1 mm in back / 2-3 mm in front


In Good Condition

• Coating of the cutting edge is undamaged
• Knife can still be adjusted properly

Horizon Blades


Showing Signs of Wear

• Cutting edge is dull, cracked, and chipped


In Good Condition

• Coating on the cutting edge is undamaged

Spacer Sleeves


Showing Signs of Wear

• Sleeve is visibly worn
• Replace sleeve with every other rotating knife replacement


In Good Condition

• No visible signs of wear

Gathering Chain Sprocket


Showing Signs of Wear

• Sprocket tooth crest is worn to < 6 mm


In Good Condition

• No signs of wear on sprocket (tooth crest ≈ 10 mm)

Rotor Seal


Showing Signs of Wear

• Visible signs of wear on seal
• Replace seal at every other rotating knife replacement


In Good Condition

• Seal shows no visible signs of wear


Find a Dealer

Contact your local Geringhoff dealer for more information and to order your common wear parts.