Yoke ears spread

PTO drive shaft too long

Adjust PTO shaft length. See "Preparing the Mower-Conditioner" Section

Replace parts

Axial forces too high

Clean and grease profile tubes; replace both tubes, if necessary

Yoke ears distorted

Overload caused by high starting and peak torques

Adjust PTO shaft length. See "Preparing the Mower-Conditioner" Section

Replace parts

Pressure marks on yoke ears

Excessive bending of rotating drive shaft due to bad adjustment of telescoping hook-up length

Readjust telescoping hook-up. See "Preparing the Mower-Conditioner" Section

Bearing caps blued

Insufficient lubrication

Replace bearing caps

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