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JF-Stoll GX 2402 SM Instruction Manual

Jf-stoll disc mowers instruction manual
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Disc Mower
GX 2402 SM/SC I GX 2802 SM/SC I GX 3202 SM

Instruction Manual

"Original instructions"
Edition 6 I April 2010

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Summary of Contents for JF-Stoll GX 2402 SM

  • Page 1: Instruction Manual

    Disc Mower GX 2402 SM/SC I GX 2802 SM/SC I GX 3202 SM Instruction Manual “Original instructions” Edition 6 I April 2010...
  • Page 2 Model: Typ : GX 2402 SC Tipo : GX 2402 SM Type : GX 2802 SC Modèle : GX 2802 SM modelo : GX 3202 SM...

  • Page 3: Foreword

    FOREWORD DEAR CUSTOMER! We appreciate the confidence you have shown our company by investing in a JF- product and congratulate you with your new machine. Of course, it is our wish that you will experience complete satisfaction with the investment. This instruction manual contains information about correct and safe use of the machine.

  • Page 4: Table Of Contents

    CONTENTS FOREWORD ........................3 CONTENTS......................... 4 1. INTRODUCTION ......................6 INTENDED USE ....................6 SAFETY......................7 Definitions ....................7 General safety instructions..............8 SAFETY –JF– MOWERS ................... 9 Choice of tractor..................9 Connection and disconnection ............. 10 Transport....................10 Working....................10 Maintenance ..................
  • Page 5 4. GREASING ........................35 GREASE......................35 OIL CHANGE: ....................37 The cutter bar..................37 Bevel gearbox above the cutter bar ............. 39 Bevel gearbox on the headstock............39 DRIP-FEED LUBRICATION ................41 Chain drive and gearwheel drive (on SC-models)........ 41 5.

  • Page 6: Introduction

    1. INTRODUCTION 1. INTRODUCTION INTENDED USE JF disc mowers are developed for agricultural work. They should only be connected to tractors and driven by the PTO of the tractor. The disc mowers are solely intended for: Cutting on the ground of natural or planted grass and stem crops for animal feeding purposes It is assumed that the work is performed under reasonable conditions, i.e.

  • Page 7: Safety

    1. INTRODUCTION SAFETY The safety of persons and machines is an integral part of JF-Fabriken's development work. We wish to ensure the safety of you and your family in the best possible way, but this also requires an effort on your part. However, damage can occur as a consequence of misuse and insufficient instruction.

  • Page 8: General Safety Instructions

    1. INTRODUCTION GENERAL SAFETY INSTRUCTIONS The following is a brief description of the measures, which should be observed by the operator. Transport Always lower the cutting unit to the ground or activate the transport safety device when parking the machine. Never stand between the tractor and the mower during connection and disconnection.

  • Page 9: Safety -Jf- Mowers

    1. INTRODUCTION SAFETY –JF– MOWERS CHOICE OF TRACTOR Always follow the recommendations specified in the instruction manual of the tractor. If this is not possible, technical assistance must be sought. Choose a tractor with a suitable power on the PTO. To obtain full capacity under all conditions, we recommend you to choose a tractor which has 15 kW more than the informed minimum.

  • Page 10: Connection And Disconnection

    1. INTRODUCTION CONNECTION AND DISCONNECTION Never stand between the tractor and the mower during connection and disconnection. An unintentional manoeuvre with the tractor may cause serious injury. Make sure that the PTO drive shaft has been mounted correctly, i.e. that the lock pin is in mesh and that the support chain has been fastened at both ends.

  • Page 11: Maintenance

    1. INTRODUCTION It is important that the cutting unit is correctly relieved to ensure perfect operation in the field and to reduce the risk of damaging the cutter bar. If the cutting unit is blocked, stop the tractor engine, activate the parking brake and wait until the revolving parts have stopped before removing the foreign matter.
  • Page 12 1. INTRODUCTION STOP 2 MIN Min. 10 m PIGB-093X-06 GX 2402/2802/3202 SM-GX 2402/2802 SC 0410...

  • Page 13: Safety Decals

    1. INTRODUCTION SAFETY DECALS The safety decals shown on the previous page are positioned as shown on the drawings at the bottom of the page. Before using the machine, check that all decals are present: if not, require those missing. The decals have the following meaning: Read the instruction manual and the safety instructions This is to remind you to read the delivered documents to ensure the machine is operated correctly and to avoid unnecessary accidents and machine damage.

  • Page 14: Technical Data (Gx-Sc)

    1. INTRODUCTION TECHNICAL DATA (GX-SC) GX 2402 SC GX 2802 SC Working width Capacity [Ha/h] 2,4 - 2,8 2,6 - 3,0 Power requirement [kW/HP] Minimum 44/60 Minimum 54/73 PTO (Standard) [rpm] PTO (Variant) [rpm] 1000 1000 Suspension (Standard) Cat. II Cat.

  • Page 15: Technical Data (Gx-Sm)

    1. INTRODUCTION TECHNICAL DATA (GX-SM) GX 2402 SM GX 2802 SM GX 3202 SM Working width Capacity [Ha/h] 2,4 – 2,8 2,6 - 3,0 2,8 - 3,2 Power requirement on [kW/HP] Minimum 44/60 Minimum 54/73 Minimum 66/90 Power take-off (PTO)
  • Page 16 2. CONNECTION AND TEST DRIVING Fig. 2-1 Fig. 2-2 Fig. 2-3 Fig. 2-4 Fig. 2-5 Fig. 2-6 PIGB-093X-06 GX 2402/2802/3202 SM-GX 2402/2802 SC 0410...

  • Page 17: Connection And Test Driving

    2. CONNECTION AND TEST DRIVING 2. CONNECTION AND TEST DRIVING CONNECTION TO THE TRACTOR First, the machine should be adjusted to the track width of the tractor. Fig. 2-1 You can choose between 3 settings (A, B and C) of the pins on the headstock corresponding to the following track width sizes.
  • Page 18 2. CONNECTION AND TEST DRIVING Fig. 2-7 Fig. 2-8 Fig. 2-9 Fig. 2-10 PIGB-093X-06 GX 2402/2802/3202 SM-GX 2402/2802 SC 0410...

  • Page 19: Friction Clutch

    2. CONNECTION AND TEST DRIVING Fig. 2-7 Adjust the length of the top link so the headstock B is vertical. Fig. 2-8 Adjust the length of the PTO drive shaft so that it in working position has minimum 200 mm overlapping on the profile tubes, in no position is compressed more than the prescribed 30 mm in order not to bottom the shaft, and in the longest position has minimum 100 mm overlap.
  • Page 20 3. ADJUSTMENTS AND DRIVING Fig. 3-1 Fig. 3-2 Fig. 3-3 Fig. 3-4 Fig. 3-5 Fig. 3-6 PIGB-093X-06 GX 2402/2802/3202 SM-GX 2402/2802 SC 0410...

  • Page 21: Adjustments And Driving

    3. ADJUSTMENTS AND DRIVING 3. ADJUSTMENTS AND DRIVING CONNECTION Note: The following instructions imply that the machine has been prepared, adjusted to the tractor and tested according to section 2. CONNECTION AND TEST DRIVING. Instruction for normal connection: Place the tractor right in front of the three-point linkage of the machine. Check if the link arms of the tractor are at the same height.
  • Page 22 3. ADJUSTMENTS AND DRIVING Fig. 3-7 Fig. 3-8 Fig. 3-9 PIGB-093X-06 GX 2402/2802/3202 SM-GX 2402/2802 SC 0410...

  • Page 23: Parking

    3. ADJUSTMENTS AND DRIVING PARKING Fig. 3-7 Release the transport lock B. Lower the link arms so that the top link can be disconnected from the headstock. Lower the jack of the machine. Disconnect hydraulic hoses and the PTO shaft from the tractor. Lower the link arms until the machine rests on the ground, release the link arms and drive the tractor away.
  • Page 24 3. ADJUSTMENTS AND DRIVING Fig. 3-10 Fig. 3-11 PIGB-093X-06 GX 2402/2802/3202 SM-GX 2402/2802 SC 0410...

  • Page 25: Turning

    3. ADJUSTMENTS AND DRIVING TURNING Fig. 3-10 When turning in the field, use the lifting cylinder A on the boom (Easy Lift). THE BREAK-AWAY MECHANISM A mechanical stone release enables the cutting unit to swivel backwards in case of collision with foreign matter. When the stone release is activated, disengage the power take-off and stop driving immediately.
  • Page 26 3. ADJUSTMENTS AND DRIVING Fig. 3-12 Fig. 3-13 Fig. 3-14 PIGB-093X-06 GX 2402/2802/3202 SM-GX 2402/2802 SC 0410...

  • Page 27: Flow Caps

    3. ADJUSTMENTS AND DRIVING FLOW CAPS Fig. 3-12 The discs are equipped with flow caps to ensure that the crop is lifted away from the blades faster. This reduces risk of stripes and recutting. If the power requirement seems to be too high, the flow caps can be dismounted. The amount of crop and the driving technique determine the need of flow caps.
  • Page 28 3. ADJUSTMENTS AND DRIVING Fig. 3-15 Fig. 3-16 Fig. 3-17 PIGB-093X-06 GX 2402/2802/3202 SM-GX 2402/2802 SC 0410...

  • Page 29: Finger Conditioner (Sm Models)

    3. ADJUSTMENTS AND DRIVING FINGER CONDITIONER (SM MODELS) CONDITIONER SPEED There are two conditioner speeds available: Normal 860 rpm Reduced 700 rpm From the factory the machine is mounted to work at normal speed; 860 rpm. Fig. 3-15 If you wish to reduce the rotor speed, replace the 27 teeth sprocket wheel on the rotor shaft by the 33 teeth sprocket wheel from the supplied spare parts package.
  • Page 30 3. ADJUSTMENTS AND DRIVING Fig. 3-18 Fig. 3-19 Fig. 3-20 PIGB-093X-06 GX 2402/2802/3202 SM-GX 2402/2802 SC 0410...

  • Page 31: Roller Conditioner (Sc Models)

    3. ADJUSTMENTS AND DRIVING ROLLER CONDITIONER (SC MODELS) The machine with roller conditioner with rubber profiles of the chevron type is from the factory fitted with a special sprocket wheel in the transmission which provides 1000 rpm on the rollers. This speed is standard on the machines with rollers. CONDITIONING Conditioning should be hard enough to obtain sufficiently fast drying, but not harder than that.
  • Page 32 3. ADJUSTMENTS AND DRIVING Fig. 3-21 Fig. 3-22 2 mm Fig. 3-23 Fig. 3-24 PIGB-093X-06 GX 2402/2802/3202 SM-GX 2402/2802 SC 0410...

  • Page 33: Synchronisation Of The Rollers

    3. ADJUSTMENTS AND DRIVING SYNCHRONISATION OF THE ROLLERS Fig. 3-21 The rollers must never touch each other as this would give a poor result and many vibrations in the machine. The rollers must always be correctly synchronised, i.e. be in time with each other so that the rubber profile on one roller goes precisely down in the rubber profile on the other roller.
  • Page 34 4. GREASING Lubrication chart for disc mower type GX-SM and -SC The below grease spots must be greased according to the operation time intervals indicated. GX SC GX SC GX SM GX SM 40 h 40 h PIGB-093X-06 GX 2402/2802/3202 SM-GX 2402/2802 SC 0410...

  • Page 35: Greasing

    4. GREASING 4. GREASING GREASE Always ensure that the machine has been properly greased before it starts operating. Go through the greasing chart. TYPE OF GREASE: Universal grease of good quality. Rotating mechanical connections are greased with grease or oil as required. CAREFUL - REMEMBER: Lubricate the PTO shafts after every 10 working hours.
  • Page 36 4. GREASING Fig. 4-1 Fig. 4-2 Fig. 4-3 Fig. 4-4 PIGB-093X-06 GX 2402/2802/3202 SM-GX 2402/2802 SC 0410...

  • Page 37: Oil Change

    4. GREASING OIL CHANGE: THE CUTTER BAR Oil content: 2400 1.70 l 2800 2.00 l 3200 2.25 l 2 filling plugs are placed on top of the cutter bar: 2400: between 1 and 2 disc in the right and left-hand side. 2800 : between 1 and 2...
  • Page 38 4. GREASING Fig. 4-5 Fig. 4-6 PIGB-093X-06 GX 2402/2802/3202 SM-GX 2402/2802 SC 0410...

  • Page 39: Bevel Gearbox Above The Cutter Bar

    4. GREASING Lower the cutter bar again before adding new oil. When changing the oil, be sure to use a correct oil type. Only use oil of the quality API GL-4 SAE 80W In some countries, this oil is not available. In these cases a API GL-4 or API GL-5 SAE 80W-90 multigrade oil can be used as an acceptable alternative.
  • Page 40 4. GREASING Fig. 4-7 Fig. 4-8 PIGB-093X-06 GX 2402/2802/3202 SM-GX 2402/2802 SC 0410...

  • Page 41: Drip-Feed Lubrication

    4. GREASING DRIP-FEED LUBRICATION CHAIN DRIVE AND GEARWHEEL DRIVE (ON SC-MODELS) Fig. 4-7 Chain drive and gearwheel drive are lubricated by drip-feed lubrication. Fill the oil Fig. 4-8 tank E (1 on the SM models and 2 on the SC models) with chain saw oil. Refill after every 20 hours of operation (0.5 l).
  • Page 42 5. MAINTENANCE Class: 8.8 Class: 10.9 Class: 12.9 Ø [Nm] [Nm] [Nm] M 10 M 12 M 12x1,25 M 14 M 14x1,5 M 16 M 16x1,5 M 18 M 20 M 20x1,5 M 24 1100 M 24x1,5 1175 M 30 1300 1800 2300...

  • Page 43: Maintenance

    5. MAINTENANCE 5. MAINTENANCE IN GENERAL WARNING: When repairing or maintaining the machine it is especially important to ensure correct personal safety. Therefore, always park the tractor (if mounted) and the machine according to the GENERAL SAFETY INSTRUCTIONS items 1-20 in the beginning of this instruction manual.
  • Page 44 5. MAINTENANCE Fig. 5-2 Fig. 5-3 PIGB-093X-06 GX 2402/2802/3202 SM-GX 2402/2802 SC 0410...

  • Page 45: Friction Clutch

    5. MAINTENANCE FRICTION CLUTCH If you drive with a large tractor (more than 90 HP) you can ensure a long life for your tractor and machine by mounting a PTO drive shaft with friction clutch between tractor and machine. The PTO drive shaft with friction clutch is standard on GX 3202 SM and is available as option for the other models.
  • Page 46 5. MAINTENANCE Fig. 5-4 Fig. 5-5 Fig. 5-6 Fig. 5-7 Fig. 5-8 Fig. 5-9 PIGB-093X-06 GX 2402/2802/3202 SM-GX 2402/2802 SC 0410...

  • Page 47: Cutter Bar - Discs And Blades

    5. MAINTENANCE All machines manufactured by JF-Fabriken are tested and checked for vibrations with special tools. The first time you start the machine pay attention to vibrations and noise to have a standard of comparison later. Fig. 5-4 To avoid damage caused by vibrations in the cutting unit, the cutter bar must be fastened correctly.
  • Page 48 5. MAINTENANCE Fig. 5-10 Fig. 5-11 Fig. 5-12 Fig. 5-13 90° Fig. 5-14 Fig. 5-15 PIGB-093X-06 GX 2402/2802/3202 SM-GX 2402/2802 SC 0410...

  • Page 49: Replacement Of Blades

    5. MAINTENANCE Fig. 5-10 The special nut must be replaced if: 1) it has been used more than 5 times 2) the height of the hexagon is less than half of the original height. 3) the lock device is worn or loose. REPLACEMENT OF BLADES Fig.
  • Page 50 5. MAINTENANCE Fig. 5-16 Fig. 5-17 Fig. 5-18 PIGB-093X-06 GX 2402/2802/3202 SM-GX 2402/2802 SC 0410...

  • Page 51: Conditioner

    5. MAINTENANCE Fig. 5-16 The PTO drive shaft for the cutter bar has been greased for life. The PTO should run with minimum angle deviation, i.e. the measure difference at A and B should maximum be 6 mm (+/- 3). The alignment is made at the gearbox above the shaft by moving the gearbox in the oblong holes or mount fillers between the gearbox and the frame at C.

  • Page 52: Miscellaneous

    6. MISCELLANEOUS 6. MISCELLANEOUS DRIVING TIPS AND FAULT-FINDING Problem Possible cause Remedy Uneven stubble or bad cut The cutter bar is relieved too much. Check basic adjustment machine and, if necessary, reduce the relief by lowering the link arms. The number of rpm of the tractor is too Check that the number of rotations of the low.

  • Page 53: Optional Equipment

    6. MISCELLANEOUS OPTIONAL EQUIPMENT HIGH GUIDE SHOES For topping of fallow fields, guide shoes can be mounted which will give a higher stubble. SHARP SHEARBARS When working in certain difficult crops it may be necessary to mount sharp shearbars between the discs. The shearbars reduce the risk that crop accumulates on the cutter bar and thus creates stribes.
  • Page 55 WARRANTY JF-Fabriken - J. Freudendahl A/S, 6400 Sønderborg, Denmark, hereafter called "JF", grants warranty to any buyer of new JF machines from authorized JF-dealers. The warranty covers remedy of material and production faults. This warranty is valid within a year after date of sale to end-user. - The warranty is invalidated in the following cases: The machine has been used for other purposes than those described in the instruction manual.
  • Page 56 No matter which type of JF-STOLL- machine you chose, you can be sure to obtain the best result to obtain a top result - in the shape of high performance and...

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