Gude GFS Series Brush Cutter Instructions

October 27, 2023
Gude

Gude GFS Series Brush Cutter Instructions
Gude GFS Series Brush Cutter

Introduction

To enjoy your new appliance as long as possible, please read carefully the Operating Instructions and the attached safety instructions before putting the appliance into operation. We also recommend keeping the Operating Instructions for future reference.

Making technical changes to improve the appliance as part of the continuous product development reserved.
Illustrations may therefore be different.

This document represents the original Operating Instructions.

Supply includes

Take the appliance out of the transport container and check whether there are the following parts:

  • Lawn trimmer including operating handles
  • Protection cover
  • Rotational knife
  • Star knife
  • Spool of string
  • Shoulder strap system
  • Fixation material (4x bolt + washer; 4x bolt + expander ring + washer + nut)
  • Original Operating Instructions
  • Warranty certificate

If any parts are missing or are damaged, please contact your dealer.

Use as designated

Lawn trimmer for treating and cutting natural grass plots and low bushes.

The appliance cannot be used for other works than those for which it has been designed and which are specified in the Operating Instructions.

Any other use will be considered a use in conflict with the designation. The manufacturer will not be liable for any consequential damage and injuries. Please be sure to know that the appliance has not been designed for industrial purposes.

Appliance description

Appliance description
Appliance description
Appliance description

  1. Operating handle
  2. Engine unit
  3. Handle
  4. Shoulder strap system
  5. Spool of string
  6. Star knife
  7. Rotational knife
  8. Protection cover
  9. Post
  10. Post connection piece
  11. Socket plug
  12. Air filter
  13. Choke
  14. Exhaust
  15. Starter cable
  16. Tank
  17. Operating switch
  18. Half throttle lock
  19. Release
  20. Hand throttle
  21. String cut-off knife

Technical specifications

GFS 1250 B # 95151

Engine: 1.25 kW/1.7 PS
Fuel: Mixture for 2-stroke
1:40
Capacity: 42.7 ccm
Tank capacity: 1 l
Max. speed: 7,500 per min-1
Mounting dimensions: 750 mm
Weight: 6.1 kg

GFS 1501 B # 95152

Engine: 1.5 kW/2.0 PS
Fuel: Mixture for 2-stroke
1:40
Capacity: 51.7 ccm
Tank capacity: 1 l
Max. speed: 7,500 per min-1
Mounting dimensions: 750 mm
Weight: 6.8 kg

Operator requirements

The operator must carefully read the Operating Instructions before using the appliance.

Qualification

No special qualification is necessary for using the appliance apart from detailed instruction by an expert.

Minimum age

The appliance can only be operated by persons over 18 years of age. An exception includes youngsters operating the appliance within their professional education to achieve necessary skills under trainer’s supervision.

Training

Using the appliance only requires appropriate instructions by a professional or reading the Operating Instructions. No special training necessary.

Before putting the appliance into operation

Assembly

Connect both parts of the post with an aluminium die cast cap. In doing so, make sure the drive shaft slides in inside.

Insert both parts of the handle (pic. E) in the post and fix them using bolts and washers (pic. F).

Insert the protection cover in the bottom post (pic. G) and screw it using bolts, expander ring, washer and a nut.

Depending on the type of work, fit the rotational/star knife or the spool of string (pic. H-N).

  1. Use the fork wrench and socket-screw key or any other suitable tool to loosen the nut on the cutting head. Then, remove the protection cover and distance disc.
  2. Now fit the necessary knife or string head to the bolt.
  3. When the rotational or star knife is used, the distance disc, protection cover and nut must be refitted.
    It is not necessary for operation with the spool of string.

Protective gloves to be worn when fitting the knife.

 Please make sure the assembled parts are firmly tightened.

Hook the shoulder strap system to the eye on the post (pic. O) and adjust it in a way the cutting head is in parallel with the ground. To adjust the optimum length, move the trimmer sideways several times without starting the engine.

Before putting the appliance into operation, check it for the following:

  • Fuel system tightness
  • Perfect condition of the protection and cutting equipment
  • Firm tightening of all the screwing

Fuel and oil
Use the mixture for 2-stroke 1:40.
Do not use a petrol mixture stored for more than 30 days at E10).

Fuel mixing ratio table

Fuel| Oil for 2-stroke
1 litre| 25 ml
5 litres| 125 ml

General safety instructions

Please read carefully the Operating Instructions.
Familiarise with the control elements and appropriate use of the appliance. Keep the Operating Instructions for future reference.

Keep the place of your work clean!
Mess in the place of your work may result in injuries.

Consider the environment
Do not expose the appliance to rain.
Do not use the appliance in a wet or moist environment.
Provide adequate lighting.
Do not use the appliance near flammable liquids or gases.

Keep other persons in a safe distance!
Do not let other persons, especially children, touch the appliance and cable. Keep them in a sufficient distance from the place of your work.

Store the appliance properly!
An appliance that is not used should be kept in a dry, locked place inapproachable to children.

Do not overload your appliance!
Work within the specified output range.

Use the right appliance!
Do not use the appliance for purposes for which it has not been designed.

Be careful!
Pay attention to what you are doing. Use common sense when working. Do not use the appliance when you are tired.

CAUTION!
Use of any other accessory equipment may lead to a risk of injury.

Have your appliance repaired by a professional only!
This appliance corresponds to appropriate safety regulations. Repairs may only be executed by a professional, using original spare parts; otherwise, the user will face a risk of injury.

Never cut when there are persons, especially children, near the appliance.

Cut under adequate visibility only.

Marking

Product safety:

|
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Product corresponds to appropriate EU standards|

Prohibitions:

****|
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Protect against rain and moisture! Do not cut wet grass!|

Warning:

|
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Warning/caution| Risk of injury by thrown- away items.
|
Warning against flammable materials| Warning against hot surface
|
Warning against dangerous electric voltage| Warning against rotating parts

Commands:

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Do not touch these parts to avoid burns. Learn carefully how the appliance works before operating it.| Use protective glasses and headphones
|
Use protective gloves| Use safety shoes
|
Wear safety helmet|

Environment protection:

|
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Dispose waste professionally so as not to harm the environment.| Packing cardboard material may be delivered to collecting centres for recycling.
|
Any faulty and/or disposed electric or electronic devices must be delivered to appropriate collection centres.|

Package:

|
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Protect against moisture Caution – fragile

This side up

|

Interseroh-Recycling

Technical specifications:

|
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Engine output| Capacity
|
Engine speed| Fuel + tank capacity
|
Weight| Noise

Product-specific:

|
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Keep distance Make sure persons and animals keep safe distance from the place of your work.|

Appliance-specific safety instructions

Rotating knife
Works on/adjustment of the appliance to be performed when the engine is switched off and cutting knife/string in idle state only.

Before cutting

Every time the appliance is to be used, check (visually) the cutting tools and the means of their fastening for any damage and if tightened properly and whether ease of operation of all switches and safe socket plug fitting are provided.

Check the ground where the trimmer is to be used for any items that may get caught and thrown away by the trimmer and remove such items (stones, branches, etc.).

Never use the appliance without the shoulder strap system.

Before starting the trimmer, make sure the rotating parts of the appliance can rotate freely.

When cutting

Wear protective glasses/screen, helmet and hearing protection and gloves when working with the trimmer.
Cutting to take place only with safety shoes with steel toe cap/sole and long trousers. Never cut when barefooted or in sandals.

Provide adequate distance from persons, children and animals.

Start the engine only after your feet are in a safe distance from the cutting knife.

Hold the appliance by both handles at all times to guarantee the specified safe distance from the cutting area.

Make sure your posture is safe.

Never touch inside the rotating cutting knife or spool of string.

After switching the appliance off, the knife keeps rotating for a few seconds. Never touch the knife when running.

Do not cut wet grass.

When the appliance is used for a long time, it may lead to problems with blood circulation in hands as a result of vibrations. This may be avoided by wearing appropriate gloves and taking regular breaks.

Make sure the engine ventilation slots are always clean and with no grass remains.

Stones or other items may be thrown away when cutting and cause serious injuries.

Do not use metal spools!

Please be sure to know that the appliance still runs down after releasing the throttle lever – remain in the working position until the appliance stops.

Behaviour in case of emergency

Provide necessary first aid treatment corresponding to the injury nature and seek qualified medical help as soon as possible. Protect the injured person from other injuries and calm him/her down.

First aid kit must always be available in the place of your work in case of accident in accordance with DIN 13164. Material taken out of the first aid kit needs to be supplemented right away.
If help is needed, please provide the following details:

  1. Place of accident
  2. Accident nature
  3. Number of injured persons
  4. Injury type

Operating

Please follow the statutory regulations regarding the protection against noise provisions that may differ in individual locations.

Caution! The automatic string cut-off knife (pic. A/21) is located underneath the protection cover.

Cold engine starting

Add adequate amount of mixture for 2-stroke (see the mixing ratio table).

  1. Put the appliance on a hard and level surface.

  2. Put the choke lever (pic. C/13) to the “ON“ position.

  3. Press the fuel pump (primary pump pic. P) three times.

  4. Put On/Off to the “I“ position (pic. Q/1).

  5. The release lever (pic. Q/3) and hand throttle (pic.Q/4) (half throttle) presses the half throttle lock (pic. Q/2) to that position.

  6. Now hold the appliance firmly or, more precisely, press to the ground and start it with the other hand by controlled pulling the starter cable (pic. 15/B). Repeat the process until the appliance is started (pic. R).
    Caution! Do not let the starter cable bounce back – risk of damage.
    Caution! The cutting tool starts rotating when the engine is started.

  7. As soon as the appliance is running, the choke may be put back to the “OFF“ position.

  8. The appliance can be operated now.

If the engine does not start, repeat steps 1-7. If the engine fails to start after several attempts, please read the Troubleshooting section.

Heated engine starting

(appliance has been stopped for max. 15-20 min.)

  1. Put the appliance on a hard and level surface.
  2. Put On/Off to the “I“ position (pic. Q/1).
  3. The release lever (pic. Q/3) and hand throttle (pic.Q/4) (half throttle) presses the half throttle lock (pic. Q/2) to that position.
  4. Now hold the appliance firmly or, more precisely, press to the ground and start it with the other hand by controlled pulling the starter cable (pic. 15/B). Repeat the process until the appliance is started (pic. R).
    Caution! Do not let the starter cable bounce back – risk of damage

If the engine fails to start after 6 pulls, please proceed as specified in the Cold engine starting section.

Stopping the engine

Procedure for emergency switch-off:
If necessary, stop the engine immediately. For that purpose, put On/Off to the “0“ position.

Standard switch-off procedure:
Release the hand throttle and wait until the engine runs idle. Then put ON/Off to the “0“ position.

Training

Please read carefully the Operating Instructions and the servicing instructions. Familiarise thoroughly with the controls and proper using of the appliance. You must know how the appliance works and how controls can quickly be switched off.
Never let children work with the appliance. Never let an adult person work with the appliance without proper training.
Do not let any persons, especially small children and pets, to the place of your work.
Be careful to prevent slipping or falling.

Residual risks and protective measures

Mechanical residual risks:

Risk Description Protective measure(s)
Cutting, amputation Rotating knives may cause serious cutting injuries or
amputate parts of your body. Never touch the cutting head when the appliance

is running.
Wear protective shoes.
Getting caught, winding-up| Wires and cords may be caught by the knife or spool of string and cause damage to the appliance and

injury of persons.

| Before starting your work, remove any undesirable items from the surface you want to cut.
---|---|---
Impact| There may be strong knife back impact at thick woods.| Do not use the appliance to cut thick woods.

Thermal residual risks:

Risk Description Protective measure(s)
Burns Contact with the exhaust may lead to burns. Let the exhaust cool down

after using the appliance.

Exposure to noise:

Risk Description Protective measure(s)
Hearing damage Long work with the trimmer without protective aids may

damage hearing.

| Do not touch the cutting head when the appliance is running.

Wear protective shoes.

Exposure to materials and other substances

Risk Description Protective measure(s)
Contact, aspiration Appliance combustion products may affect the health. To

be used outdoors only. Pause at regular intervals.
Fire or explosion| Fuel mixture of the appliance is combustible| No open fire and smoking when working and refuelling.

Other risks

Risk Description Protective measure(s)
Thrown-away items Thrown-away stones or soil may cause injuries. Remove any

undesirable items off the area you wish to cut before using the appliance. No persons or animals may be present in the dangerous area.

EU DECLARATION OF CONFORMITY

We,

Güde GmbH & Co. KG
Birkichstrasse 6
D-74549 Wolpertshausen
Germany,

herewith declare that the following appliance complies with the appropriate basic safety and health requirements of the EU Directives based on its design and type, as brought into circulation by us.
In case of alternation of the machine, not agreed upon by us, this declaration will lose its validity.

Machine description:
GFS 1250 B lawn trimmer
GFS 1501 B lawn trimmer

Art. No.

95151

95152

Applicable EU Directives:
2006/42/EC
2004/108/EC
2005/88/EC
2010/26/EC

Applicable harmonised standards:
EG ISO 11806-1:2011
EK9-BE-56:2007
EG ISO 14982:2009

Place of certification:
Intertek Testing Service Shanghai
Building No.86, 1198 Qinzhou Road (North), Shanghai
200233, China

Reference:
11SHW1102-04
SH09111130-V1
e1197/68SA2010/26140900 (95151)
e1197/68SA2010/26139700 (95152)

Noise # 95151:
Brush cutter
LWA 105,5 dB
LPA 89,5 dB
Grass trimmer
LWA 109,8 dB
LPA 90,7 dB

Noise #95152:
Brush cutter
LWA 107,7 dB
LPA 94,4 dB
Grass trimmer
LWA 110,2 dB
LPA 95,8 dB

Date/authorised signature: 31.05.2012

Title of signatory: Managing Director
Mr Arnold

Technical documentation: J. Bürkle FBL; QS

Warranty

The warranty exclusively applies to material or manufacturing defects. Original purchase voucher with the purchase date must be provided for lodging a claim in the warranty period. The warranty does not cover any unauthorised use such as appliance overload, violent use, damage by a foreign person or an undesirable item.
Failure to follow the Operating Instructions or assembly instructions and ordinary wear and tear are also excluded from the warranty.

Disposal

The disposal instructions are based on icons placed on the appliance or its package. The description of the meanings can be found in the “Marking” section.

Transport package disposal
The package protects the appliance against damage during transport. Packing materials are usually chosen depending on their environmental friendliness and disposal method and can therefore be recycled.
Returning the package to material circulation saves raw materials and reduces waste disposal costs.
Parts of packages (e.g. foils, styropor) can be dangerous to children. Risk of suffocation!
Keep parts of packages away from children and dispose them as soon as possible.

Maintenance

Do you have any technical questions? A claim? Do you need spare parts or the Operating Instructions?
You will be helped quickly and without needless bureaucracy at our webpage www.guede.com in the Services part. Please help us be able to assist you. To be able to identify your appliance when claimed, we need to know its serial No., order No. and year of production. All these details can be found on the type label. Enter the details below for future reference.

Serial No.
Order No.
Year of production:

Tel.: +49 (0) 79 04 / 700-360
Fax: +49 (0) 79 04 / 700-51999
E-Mail: support@ts.guede.com

Servicing

The appliance must always be switched off before any servicing and cleaning. Wait until it fully stops. Remove the socket plug.

Servicing works not specified in these Operating Instructions must be performed by authorised staff as there may be dangerous situations the operator is unable to handle. Spare parts may only be replaced by authorised staff.

Cleaning

Every time the appliance has been used, it should be cleaned by a clean cloth or blown with compressed air under low pressure.
Do not use cleaning agents and solvents as they may damage the plastic parts of the appliance.

Winterising

  • Clean the appliance thoroughly.
  • Keep the appliance in a dry room.
  • Provide overall servicing as described in the Servicing section.
  • Drain the fuel from the tank.
  • Start the appliance after draining the fuel.
  • Let the appliance run idle until it stops. This will clean the carburettor from the remaining fuel.
  • Let the appliance cool down.
  • Remove the spark plug.
  • Add a teaspoon of engine oil for 2-stroke to the combustion chamber. Pull carefully the starter cable out a couple of times to make the internal construction elements dip in oil. Refit the spark plug.
  • Clean the appliance external surface.
  • Keep the appliance in a cold and dry place out of reach of ignition sources and flammable materials.
  • Pack the knife properly to avoid cutting injuries.

Putting the appliance into operation again

Remove the spark plug.
Pull the starter cable several times so that the combustion chamber gets removed from the remaining oil.
Clean the contacts of the spark plug or fit a new one.
Refuel the tank. See the Fuel and oil section.
Start the engine as specified under “Cold engine starting“

Air filter servicing

An air filter that is dirty reduces the engine output due to too low air supply to the carburettor.
A regular inspection is therefore necessary. The air filter should be checked every 25 hours of operation and cleaned if necessary. If the filter is too dusty, it should be checked more often.

  1. Remove the air filter cap.
  2. Remove the filtration element.
  3. Clean the filtration element by tapping or blowing out.
  4. Assembly takes place in reverse order.

Never clean the air filter with petrol and flammable solvents.

Spark plug servicing

Socket plug = 0.6 mm
Spark plug torque: 12 – 15 Nm.

Check the spark plug after 10 hours of operation for any dirt and clean it with a copper wire brush if necessary. The spark plug should then be serviced every 50 hours of operation.

  1. Remove the socket plug by twisting.
  2. Remove the spark plug by the spark plug socket wrench.
  3. Assembly takes place in reverse order.

Knives servicing

Sharpen or replace the rotational knife, star knife and string cut-off knife if necessary.

Troubleshooting

The table shows potential failures, their possible cause and removal options. However, if you are unable to remove the problem, contact a professional to assist you.

Switch off and unplug the appliance before any servicing and cleaning.

Symptom Possible cause Remedy
Engine not starting Tank is empty

Spark plug is dirty

Functional switch in “OFF“ position.

Carburettor

Spark plug is wet

Spark plug cable is defective

| Refuel the tank.

Clean or replace the spark plug.

Put the switch to “ON“ position.

Clean the carburettor or seek the customer service centre.

Dry the spark plug.

Contact a professional/service centre.

Appliance starting but without full output| Choke adjusted wrongly

Air filter is dirty Carburettor adjusted wrongly

| Check the choke adjusting.
Clean the air filter.
Contact a professional/service centre.
Engine smoking excessively| Fuel mixture is wrong
Carburettor adjusted wrongly| Use the right fuel mixture.
Contact a professional/service centre.

GÜDE GmbH & Co. KG
Birkichstrasse 6
74549 Wolpertshausen
Deutschland
Tel.: +49-(0)7904/700-0
Fax.: +49-(0)7904/700-250
eMail: info@guede.com

References

Read User Manual Online (PDF format)

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