KUHN FC 4000 R User Manual

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OWNER’S / OPERATOR’S MANUAL

FC 4000 R - FC 4000 RG

FC 4000 G

N° 95109 C.GB – 10.2004

Questions and Answers:

B
Beth JohnsonAug 20, 2025
How to improve poor cutting quality in heavy conditions for KUHN FC 4000 R Farm Equipment?
- R
  Rachel PhillipsAug 20, 2025
  To address poor cutting quality in heavy conditions with your KUHN Farm Equipment, check the following: * Ensure blades are correctly fitted, matching the arrow on the blades with the disc's rotation. * Replace any damaged or broken blades. * Increase PTO speed to 1000 rpm using the hand throttle. * Reduce forward speed. * Adjust the suspension crank counterclockwise to increase header weight. * Tilt the header down or install low skid shoes for down crop. * Increase the conditioning roll gap.
M
mooreamyAug 22, 2025
What to do if the clutch slips on KUHN FC 4000 R Farm Equipment?
- C
  Corey CooperAug 22, 2025
  If the clutch slips on your KUHN farm equipment, it may be due to several reasons: * The mower might be locked. Check for any plugging or foreign objects in the cutterbar, and ensure all discs turn freely. * The mower could be overloaded. Reduce ground speed, or decrease conditioning intensity by reducing roll tension. * Clutch springs might be loosened. Check their length. * There might be oil or grease in the slip clutch. Remove any oil or grease from the friction plates. * Clutch springs could be overheated. Replace the springs. * Clutch friction plates might be worn or damaged. Replace them.
B
Benjamin MurphyAug 25, 2025
Why is the windrow uneven or too wide with KUHN FC 4000 R Farm Equipment?
- M
  moodyjohnAug 25, 2025
  If you notice an uneven windrow or a windrow that is too wide with your KUHN farm equipment, consider the following: * Open the windrow forming shields. * Increase the PTO speed to 1000 rpm and set it using the hand throttle. * Increase the conditioning roll gap. * Ensure the swathing baffles are positioned all the way up. * Increase forward speed, but stay within safe operational limits, considering field conditions and operator ability.
J
Jessica CastilloAug 26, 2025
How to troubleshoot excessive noise or vibration in KUHN FC 4000 R?
- A
  Adam BenitezAug 27, 2025
  Excessive noise or vibration in your KUHN Farm Equipment can stem from several issues: * If equipped with conditioning rolls (FC 4000R/RG), adjust the roll gap. * For FC 4000 G models, replace worn or missing conditioning fingers. * Replace any damaged parts of the PTO. * Replace bent or missing blades. * Replace any damaged disc guards. * If equipped with conditioning rolls (FC 4000 R / RG), adjust the timing.
N
noah25Aug 28, 2025
How to fix poor cutting quality in light conditions for KUHN FC 4000 R?
- N
  ndavisAug 28, 2025
  To address poor cutting quality in light conditions with your KUHN Farm Equipment, verify the following: * Ensure blades are correctly fitted, matching the arrow marked on the blades with the disc’s rotation. * Replace any damaged or broken blades. * Gear up and throttle down, but do not reduce PTO speed to less than 750 rpm.
A
Alexandra RobertsonAug 30, 2025
What causes strips of uncut material with KUHN FC 4000 R Farm Equipment and how to fix it?
- D
  David AndrewsAug 30, 2025
  If you're seeing strips of uncut material when using your KUHN Farm Equipment, here’s what you should check: * Replace any damaged or broken blades. * Gear up and throttle down, ensuring PTO speed does not fall below 750 rpm. * Clean any mud buildup between the disc guards. You may also need to tilt the header back, lighten the header, or install high skid shoes.
J
John NicholsSep 1, 2025
What to do if KUHN Farm Equipment still has poor cutting quality in light conditions?
- D
  davisjohnSep 1, 2025
  If you continue to experience poor cutting quality in light conditions with your KUHN Farm Equipment, check these additional items: * Adjust the suspension crank counterclockwise to increase the weight of the header. * Increase forward speed, but stay within safe operational limits, considering field conditions and operator ability. * Install low skid shoes or tilt the header down if cutting too high.
H
Holly FrancisSep 3, 2025
Why does my KUHN FC 4000 R Farm Equipment skid sideways on slopes?
- D
  Debbie JonesSep 3, 2025
  If your KUHN mower is skidding sideways on slopes or when turning, the issue may be due to: * Excessive ground speed. Reduce the ground speed. * Excessive header weight. Adjust the flotation to decrease header weight. * Low tire pressure. Check the tire pressure; it must be at 30 psi (2 bar).
H
Helen YoungSep 5, 2025
How to prevent an uneven or bunchy swath with KUHN Farm Equipment?
- S
  stevensdustinSep 5, 2025
  If you're getting an uneven or bunchy swath with your KUHN farm equipment, try the following: * Open windrow forming shields further. * Adjust the swathing baffles up.
I
igatesSep 7, 2025
What causes roll plugging in KUHN FC 4000 R / RG Farm Equipment?
- A
  angel39Sep 7, 2025
  If you experience roll plugging with your KUHN FC 4000 R / RG farm equipment, consider the following: * Maintain rated PTO speed. * Raise the header before backing up.

KUHN FC 4000 R Specifications

General

Brand	KUHN
Model	FC 4000 R
Category	Farm Equipment
Language	English

Summary

SAFETY RECOMMENDATIONS

DESIGNATED USE OF THE MACHINE

Defines the specific and intended purposes for operating the FC 4000 mower conditioner.

IMPROPER USES

Lists prohibited operations and activities to avoid when using the FC 4000 mower conditioner.

GENERAL SAFETY RECOMMENDATIONS

Provides fundamental safety principles and guidelines for operating the machine.

SPECIAL SAFETY RECOMMENDATIONS

Offers specific safety precautions for operating the FC 4000 mower conditioner.

SAFETY DECALS

TECHNICAL SPECIFICATIONS

ATTACHMENT

ATTACHING THE STRAIGHT HITCH

Procedure for attaching the FC 4000 mower to a tractor using a straight hitch.

POWER TAKE-OFF

Procedure for connecting and securing the PTO shaft to the tractor and mower.

ATTACHING THE GYRODINE SWIVEL HITCH

Steps to attach the FC 4000 mower using the Gyrodine swivel hitch system.

UNHOOKING FROM THE STRAIGHT HITCH

Step-by-step guide for safely detaching the mower with a straight hitch.

UNHOOKING FROM THE GYRODINE HITCH

Instructions for safely disconnecting the mower equipped with a Gyrodine hitch.

CHECK LIST

Pre-operation checklist to ensure proper setup and safety before starting the mower.

TRANSPORT

ADJUSTMENTS

CUTTING HEIGHT ADJUSTMENT(S)

Procedure for setting the optimal cutting height for the mower conditioner.

HEADER FLOATATION ADJUSTMENT

Guidance on adjusting the header's suspension for proper ground following.

PTO SPEED

Recommendations for setting the correct PTO speed for efficient operation.

FORWARD SPEED

Guidelines for selecting appropriate forward speeds based on conditions.

WINDROW ADJUSTMENTS

How to adjust baffles and shields for optimal windrow formation.

ADJUSTING THE CONDITIONING INTENSITY

Steps to set the conditioning intensity for different crop types.

FIELD OPERATIONS

WORK POSITION

Steps to set the mower into its working configuration before operation.

180° TURN

Maneuvering techniques for making U-turns at the end of fields.

90° Square Corner Turn

Procedure for making sharp corner turns while minimizing tractor tire interference.

LUBRICATION

LUBRICATION CHART

Chart detailing lubrication points, types of grease, and service intervals.

GREASE FITTINGS

Locations and procedures for lubricating various grease points on the machine.

GEARBOXES

Instructions for checking and changing oil in the machine's gearboxes.

MAINTENANCE

BLADE AND BOLT INSPECTION

Guidelines for inspecting blades and securing hardware for safety and performance.

BLADE REPLACEMENT

Step-by-step instructions for replacing worn or damaged mower blades.

DISCS

Information on disc replacement and conditions requiring it.

Half discs

Specific instructions for servicing and replacing half discs.

SKID SHOES

Procedure for inspecting and replacing worn skid shoes on the mower.

FRICTION SLIP CLUTCH

Details on the friction slip clutch, its adjustment, and troubleshooting.

DRIVE CHAIN FOR THE UPPER ROLLS

Maintenance and replacement procedures for the drive chain of the upper rolls.

HYDRAULICS

Procedures for bleeding hydraulic systems and synchronizing cylinders.

ELECTRIC CONNECTORS

Wiring diagram and color code for electrical connectors on the machine.

FASTENER TORQUE CHART

Torque specifications for various metric fasteners used on the FC 4000.

OPTIONAL EQUIPMENT

DRAWBAR SAFETY CHAIN

Information regarding the installation and use of the drawbar safety chain.

QUICK HITCH

Instructions for installing the quick hitch adaptation kit for tractor attachment.

STORAGE

TROUBLESHOOTING GUIDE

LIMITED WARRANTY

NOTES

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