Iveco/FPT 8.7L Engine Engine

Shared across brands: Case Ih, Generac

• Unthreshed heads or pods – white caps in sample
  Fix: 1. Increase rotor speed 2. Close concave 3. Close Shoe Sieve 4. Add remaining fillers to first concave 5. Add filler to right of first concave
• Small bits of cob in sample
  Fix: 1. Close chaffer sieve 2. Decrease rotor speed 3. Close shoe sieve 4. Increase air blast 5. Open concave
• Shoe sieve overloading
  Fix: 1. Close chaffer sieve 2. Open shoe sieve 3. Increase air blast 4. Decrease rotor speed 5. Decrease forward travel speed
• Loss of kernels out of rotor
  Fix: 1. Inspect concaves for plugging (unplug and set concave closer) 2. Decrease rotor speed 3. Position grate vanes to rear or slow position 4. Remove fillers from right of first concave (if installed) 5. Remove some wires from the concave 6. Move concave vanes to rear position
• Kernels left of cob
  Fix: 1. Increase rotor speed 2. Close concave
• Heavy stems in sample
  Fix: 1. Close shoe sieve 2. Close chaffer sieve 3. Increase air blast 4. Decrease rotor speed 5. Open concave
• Grain loss over chaffer
  Fix: 1. Increase air blast 2. Open Chaffer sieve 3. Decrease rotor speed 4. Cover slots in rear portion of cage 5. Decrease forward travel speed
• Grain blowing over chaffer
  Fix: 1. Reduce air blast 2. Open Chaffer sieve 3. Inspect concaves for plugging (unplug and set concave closer)
• Fines in sample
  Fix: 1. Increase air blast 2. Close shoe sieve 3. Close chaffer sieve 4. Decrease rotor speed 5. Open concave
• Excessive power consumption
  Fix: 1. Increase rotor speed 2. Open concave 3. Decrease forward travel speed 4. Remove channels from inside of rear grates
• Excess cob breakage
  Fix: 1. Decrease rotor speed 2. Open concave 3. Remove channels from inside of rear grates
• Distribution heavy on right side
  Fix: 1. Add filler to right of first concave 2. Add, remove or adjust auger bed paddle 3. Decrease rotor speed 4. Close concave 5. Decrease forward travel speed
• Distribution heavy on left side
  Fix: 1. Remove fillers from right of first concave (if installed) 2. Open concave 3. Decrease rotor speed 4. Increase rotor speed 5. Add, remove or adjust auger bed paddle 6. Remove some wires from concaves 7. Decrease forward travel speed 8. Inspect concave for “zero” at 12th bar of the concave
• Damaged grain or corn in sample
  Fix: 1. Decrease rotor speed 2. Open shoe sieve 3. Inspect concaves for plugging (unplug and set concave closer) 4. Open concave 5. Remove fillers from right of first concave (if installed) 6. Remove some wires from concaves

Compiled from service & troubleshooting documentation across every generator set that uses the Iveco/FPT 8.7L.