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KUHN GA4121GM - User Manual

KUHN GA4121GM
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Original instructions
KN129DGB D
Read carefully before starting the machine
OPERATOR'S MANUAL
Gyrorake
D0001 > D9999
GA4121GM
KN129DGB D
- English - 04-2018
*KN129DGB_D*

Table of Contents

Questions and Answers

  • J
    justin74Aug 14, 2025
    What to do if the torque limiter disengages frequently on my KUHN Farm Equipment?
    • J
      John FranklinAug 14, 2025
      If the torque limiter on your KUHN Farm Equipment frequently disengages, it could be due to a high load on the tine arms. Try adjusting the wheel height. Alternatively, reduce the ground speed.
  • Y
    ysandersAug 17, 2025
    Why is there crop pick up at the rear of the rotor on my KUHN GA4121GM?
    • D
      Dr. Vanessa James MDAug 18, 2025
      If you notice crop pick up at the rear of the rotor on your KUHN Farm Equipment, there are several potential causes: * The swaths may be too compact between the tines and swath screen. Increase the swath screen distance. * There may be earth clods on the tines. Adjust the wheel height. * The rotor speed might be too high. Reduce the PTO speed.
  • S
    Summer JuarezAug 20, 2025
    How to fix poor raking over the whole rotor width on KUHN GA4121GM Farm Equipment?
    • R
      Robert RobertsonAug 21, 2025
      To address poor raking over the whole rotor width on your KUHN Farm Equipment, the tines may be too far from the ground. Adjust the wheel height to correct this.
  • C
    Charles ReedAug 25, 2025
    Why is my KUHN GA4121GM Farm Equipment rotor vibrating unusually?
    • L
      Lisa ReyesAug 25, 2025
      If you're experiencing unusual rotor vibrations with your KUHN Farm Equipment, the rotor speed may be too high. Check the PTO speed and ensure it's at a maximum of 540 min-1.
  • M
    Maria WilliamsAug 28, 2025
    What to do if crop is ejecting at the front of the swath screen on my KUHN GA4121GM Farm Equipment?
    • J
      Joshua GonzalezAug 28, 2025
      If your KUHN Farm Equipment is ejecting crop at the front of the swath screen, it could be due to an incorrect swath screen position, specifically being too much at the rear. Move the swath screen forwards. You may also need to reduce the PTO speed.
  • C
    ccooperAug 31, 2025
    How to fix poor raking on one side of the rotor on KUHN GA4121GM Farm Equipment?
    • R
      rmckinneyAug 31, 2025
      If you're experiencing poor raking on one side of the rotor with your KUHN Farm Equipment, it could be that the rotor is tilted towards the opposite side. To fix this, adjust the wheel height to achieve the same tine-to-soil distance on both sides of the machine.
  • D
    Daniel MedinaSep 3, 2025
    Why is crop ejecting underneath the swath screen on my KUHN GA4121GM?
    • M
      Michael WellsSep 3, 2025
      If you're experiencing crop ejection underneath the swath screen on your KUHN Farm Equipment, it's likely that the swath screen position is incorrect, being too far away from the ground. Move the swath screen downwards to resolve this issue.
  • D
    Darryl SanchezSep 7, 2025
    How to resolve poor raking on both sides when using KUHN Farm Equipment?
    • G
      gjohnsonSep 7, 2025
      If you're experiencing poor raking on the two sides with your KUHN Farm Equipment, the rotor might be tilted frontward. You can lengthen the top link or adjust the wheel height to correct this.
  • C
    Cynthia JonesSep 10, 2025
    What causes poor raking in the middle when using KUHN Farm Equipment?
    • E
      Eric NicholsSep 12, 2025
      If you're experiencing poor raking in the middle with your KUHN Farm Equipment, it could be that the rotor is tilted rearwards. Shorten the top link to resolve this issue.

Summary

1. Dear Owner

About improvements

Company reserves the right to make improvements or changes to products without prior obligation.

Wear parts

Service life of wear parts depends on usage conditions like soil, weather, etc.

Designated use of the machine

Machine is designed for raking and forming windrows of pre-mowed fodder and straw.

Document illustrations

Illustrations may be based on one machine type; instructions apply to all covered machines.

3. Identification of the machine

3.1 Front view

Diagram showing the front view of the Gyrorake machine.

3.2 Rear view

Diagram showing the rear view of the Gyrorake machine.

3.3 Model identification plate

Information on the machine's identification plate for type and serial number.

3.4 Optional equipment

List of optional equipment that can be fitted to the machine.

4. Safety

4.1 Description of symbols

Explanation of hazard, caution, and information symbols used in the manual.

4.2 Safety instructions

General safety guidelines and precautions for operating the machine.

4.3 Safety decal locations and descriptions

Diagram showing locations and explanations of safety decals on the machine.

5. Machine specifications

5.1 Description and glossary

Glossary of machine parts and components with numerical references.

5.2 Technical specifications

Detailed technical data including dimensions, weight, power, and PTO speed.

5.3 Required equipment

Information on factory-fitted equipment and required PTO shafts.

5.4 Sound levels

Measured sound pressure levels for tractor and tractor with machine.

6. Putting into service

6.1 Coupling and uncoupling

Instructions for connecting and disconnecting the machine from the tractor.

6.1.4 Primary PTO shaft

Procedure for greasing, connecting, and adjusting the PTO shaft.

6.1.7 Uncoupling the machine

Steps for safely disconnecting the machine from the tractor.

7. Instructions for transport

7.1 Putting the machine into transport position

Procedure for folding the machine into its transport configuration.

7.2 Road regulations conformity

Ensuring compliance with highway codes for road transport.

8. Instructions for work

8.1 Putting the machine into work position

Steps to deploy the machine from transport to working configuration.

8.2 Adjustments in working position

Adjustments required for optimal performance in working conditions.

8.3 Machine use

Guidelines for operating the machine safely and effectively.

9. Optional equipment

9.3 Front support wheel

Details on the front support wheel for improved ground contour adaptation.

9.4 Bogie axles

Information on bogie axles for improved machine flotation on uneven ground.

9.6 Hydraulic windrow curtain

Details on the hydraulic windrow curtain for adjusting windrow width.

9.8 Europe signalling equipment

Details on rear lighting and signalling components for European road regulations.

10. Maintenance and storage

10.1 Frequency chart

Chart indicating maintenance and lubrication intervals based on usage hours.

10.2 Lubrication

Detailed lubrication instructions and points for the machine's components.

10.3 Maintenance

General maintenance procedures for the machine.

10.4 Storage

Instructions for storing the machine at the end and start of the season.

11. Troubleshooting guide

13. Limited Warranty

KUHN GA4121GM Specifications

General IconGeneral
BrandKUHN
ModelGA4121GM
CategoryFarm Equipment
LanguageEnglish

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