Gude GRK 250/500 Radial Mitre Saw Instruction Manual

: June 5, 2024
: Gude

GRK 250/500 Radial Mitre Saw

Translation of the original instructions

GRK 250/500 55004| GRK 210/300 55006
GRK 210/300 SET 00531| GRK 250/300 55003
GRK 250/300 SET 00562

Please read the instructions carefully before starting the machine.

Please read carefully the following Operating Instructions before putting the appliance into operation
A.V. 2 Any reprints, even partial, are subject to approval. Technical changes reserved. Illustrative pictures! Translation of original operating instructions.
Sighs on Unit
Meaning of Symbols
Symbols shown below are used throughout this manual and/or on the unit:
Product Safety:

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Product compliance with respective EU standards|

Bans:

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General ban (in combination with another pictograph)| Do not reach in rotating parts
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Do not use the unit in rain| No pulling the cable

Precaution:

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Warning/caution

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Commands:

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Read operating manual before use| **** Use protection gloves
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Wear goggles. Use ear protectors|

Environment Protection:

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Wastes to be disposed of in a professional manner not to harm the environment| Cardboard packaging to be collected for recycling.
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Faulty and/or disposed of electrical/electronic appliances to be collected by authorized salvage places|

Packaging:

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Protect from moisture

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Keep Up

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Fragile

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Technical Data:

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Engine power

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Connection

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Revolutions

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Ø circular saw blade

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Cutting width at 90°

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Cutting width at 45°

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Weight

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Scope of Delivery (Fig. 1)

1. Hand grip and a switch
2. Carbon brush guard
3. Tripping lever
4. Scale with angle adjustment
5. Saw table
6. Mounting holes
7. Table extension equipment
8. End stop| 9. Sawdust collecting bag
10. Circular saw blade mounting
11. Locking button
12. Circular saw blade guard
13. Locking lever for chamfer cutting
14. Locking lever for mitre cutting
15. Exhaust connection/dust bag connection
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Warranty

A warranty period of 12 months applies to commercial use and 24 months apply to private use and commences on the day of purchase of the device.
Warranty applies exclusively to failures due to defective material or workmanship. An original sale slip with an indication of the date of sale must be presented in case of claiming the warranty rights.
The warranty does not cover unprofessional use such as device overload, violent use, damage caused by a third party or foreign materials, failure to comply with operations and assembly manual, and normal wear and tear.

**Using the appliance as designated

**

The saw has exclusively been designed for cutting wooden profiles with the cutting power specified in the technical specifications.
Should provisions of generally applicable regulations or provisions of these Operating Instructions not be adhered to, the manufacturer shall not be liable for any damage incurred.

General Safety Instructions

Before you start working with the appliance please read carefully the following safety regulations and Operating Instructions. If any other person is to handle the appliance provide him/her with the Operating Instructions. Keep the Operating Instructions for future reference!
Package: The appliance has been put in a package to prevent any damage during transport. Packages are raw materials so they can be reused or recycled.
Please read carefully the Operating Instructions and follow them. Use these Operating Instructions to get acquainted with the appliance, its corresponding use and safety instructions. Keep the instructions for future reference.

Get Familiar with Machine
Read this instruction manual carefully and note all the warnings and precautions on the machine. Get familiar with the use and limits of the machines and the risks related thereto. Keep the instruction manual at a safe place.
Connect machines and devices to the ground Although double protective insulation is provided on the saw, regular electrical safety precautions should not be ignored.
Keep all the protective devices in working condition and properly installed and adjusted.
Remove any adjustment tools and aids!
Get used to checking whether all the adjustment aids are removed prior to switching the machine on.
Keep your workplace tidy
Tools or materials cluttered around shall give rise to accidents. Wax and sawdust make the floor slippery.
Never work in an endangered environment
Never use electrical tools in humid or wet areas and do not expose them to rain. Provide for sufficient lighting and sufficient room to move.
Keep children away at a reasonable distance Any visitors should be kept at a reasonable distance from your working area.
Prevent children from access to your workshop use padlocks, master switches or lockable switches on the machines.
Do not overload the machine
You will do your job in a better and faster manner if the machine is not overloaded.
Use the right tools
Never get down to any job using tools or accessories not designed for it.
Wear proper working clothing
Do not wear any wide garments, gloves, ties or jewelry that could get stuck in the rotating parts of the machine. Pay attention to keeping stable (no slipping shoes). If your hair is long, wear a hairnet.
Wear protective goggles
When working, you should always wear goggles according to DIN 58214. Regular glasses will resist a shock but they cannot be worn as a substitute for safety goggles. Wear a dust protection mask when the job is dusty and you should also have ear protection when working for prolonged periods.
Secure material to be cut
To hold the material to be cut, use lighteners or a vice. It is safer than holding the piece with a hand and both your hands will be free to operate the saw.
Care about your stable position Avoid any position, in which you could lose balance.
Be particular about the machine Keep the machine clean and sharp. Follow the manufacturer’s instructions for lubrication and parts replacement
Always disconnect the machine from the source Prior to any adjustment or maintenance unplug the machine.
Avoid any unintended switching Before unplugging the machine, make sure that the switch is in the OFF position
Use only recommended accessories Follow the instructions attached to the accessories. The use of improper accessories may be hazardous.
Never stand atop the machine That might result in serious injuries, if the machine rolls over or if you accidentally touch the cutting tool. Never store the material above the machine or next to it so that you have to get on the machine when you won’t take it.
Check all the parts of the machine for damages Prior to any use of the machine, you should carefully check any protections and other parts of the machine to see whether they are still working to the full. Check the machine for adjustment, easy run, cracks and other defects that could impair the machine’s working conditions. Any damaged part of the machine should be immediately repaired or replaced.
Do not leave the machine running unattended.
Switch the machine off and do not leave it until it completely stops
The appliance meets EN 61000-3-11 requirements and is subject to special connection conditions. That means that use on optionally selected connection points is inadmissible.
The appliance can lead to occasional voltage fluctuations under unfavorable power conditions.
The appliance is only designated to be used for connection points not exceeding the maximum allowed impedance of Zmax = 0,233 Ω.
As a user, you must make sure your connection point on which you want to use the appliance meets the abovementioned requirements – after agreement with your electricity supplier if necessary.

Trimming Saw Safety Instructions

Steps to be taken prior to the first use:

Assembly and installation
Getting familiar with the function and correct operations of the controls as follows:
switch on/off
upper and lower protective cover
saw shaft and pushbutton on the hand grip lock
the skew setting of the saw head, stop clips and turning table lock
Read all the safety information and operating instructions in this manual and take care to understand it.
Observe all the precautionary notices on the trimming saw.

Before each use:

Check the saw. If a part is missing, bent or unserviceable for another reason, if there is a defect on electrical equipment, switch the saw off and unplug it. Prior to the following use, replace all the missing, damaged, or defective parts.
Plan your job to have your eyes, hands, face, and ears protected at any time.
Wear safety goggles meeting the requirements of DIN 58214. While the machine is in use, various particles could get in your eyes and cause permanent visual impairment. You may buy the safety goggles at the place where you bought the trimming saw. Using goggles not in conformity with DIN 58214 may result in a serious injury in the result of a crack of the protection glass.
When working on a dusty job, wear a dust-proof mask in addition to the goggles.
To prevent blocking of the saw disc in the kerfs or throwing the cut material off:
Select a saw disc matched to the specific job. Use this trimming saw for wood and similar materials or soft metals, such as aluminum.
The arrow on the saw disc showing the rotation direction should coincide with the arrow on the saw. The saw disc teeth should direct downwards on the front of the machine
Make sure that the saw disc is sharp, undamaged and properly set up. With the machine unplugged, push the saw head downwards. Turn the saw disc with your hand a check whether the movement is free. Turn the saw head to the position at an angle of 45° and repeat the check. If the disc drags at a place, the head should be reset as described in Article 6 „Preparation Steps “
Keep the saw disc and the saw disc flanges face clean.
Keep the saw disc and the saw disc flanges face clean.
The saw disc flanges should be fitted with the work shoulder inwards (in the direction of the saw disc)
The work shoulder side of the flange should tightly fit on the saw disc flange.
The flange screw should be fastened manually using a socket spanner 13 mm.
Make sure that all the attachment devices and locks are tight and no component is allowed too much of free travel.
Never cut with freehand:
Press the cut material down to the table and to the stop all the time so that any swinging and turning is prevented. No sawdust should collect under the cut piece.
Take steps to prevent any move of the piece after it is cut through (e.g. if it does not touch the support with its all surface
For cutting pieces not abutting the plate with their all surface, use supports, feeding aids or another machine.
Make sure that chips will fall away along the side of the saw disc. If on the contrary, the chips could get stuck in the disc and it would throw them off.
Never cut several pieces at a time.
Take special care when cutting large or very small pieces or pieces difficult to handle.
Use auxiliary supports (table, holders) for long pieces that tend to fall down from the table when unsupported.
Never use this saw to cut pieces so small that they cannot be safely held with hand if you put your index finger on the stop outer edge.
When cutting pieces of the various profiles, work so that the material cannot slip and get jammed in the disc.
The pieces of various profiles should either attach with all their surface areas or it is necessary to hold them with a device that will prevent waggling, turning or slipping during the course of cutting. .
Round pieces, such as bars or tubes should be held firmly otherwise, they would spin and there is a risk of the disc getting stuck. Always clam round pieces in a proper device.
No nails or foreign matters should be left in the cut pieces.
The viewers should be kept at a safe distance from the work area and the area behind the saw, where the sawdust and chips go.
Never switch the trimming saw before removing all the things except for the piece to be cut and clamping devices from the table.
To prevent hearing deterioration, always wear ear protectors when working for a longer time.
To prevent being retracted in the disc,
1. Do not wear gloves
2. Put off any jewelry and wide garments.
3. If your hair is long, wear a hairnet.
4. Roll up the long sleeves above your elbows.
Unplug the machine prior to any adjusting the end stop or the saw head, replacement of the disc or accessories, and any other kind of maintenance in order to prevent any accidents in a result of unintentional switching on.
Do not touch the metal pins of the plug when plugging in to get protected from the electrical shock.
Do not use the cable for pulling out the plug from the socket. Protect the cable against the high temperature, oil and sharp edges.
Never apply detergents or lubricants on this disc, which still turning.
To prevent fire, never operate the trimming saw close to inflammable liquids, vapors or gases
Avoid any accidents possibly resulting from the use of improper accessories. Only recommended saw discs should be used.

While the saw is running:

Before the first cut, have the saw running idle for a while.
If you hear unusual sounds or feel strong vibrations, switch the saw off, unplug and find out the cause. Do not switch the saw on again before you find and remove the cause.
The cut-off part should not be restricted in any way. Do not touch it, do not hold it, do not clamp it and do not place the end stop against it either. The cut-off piece should be able to move freely along the saw side. If you prevent the motion in any way, it could get stuck and thrown away with the rotating disc.
Avoid any clumsy position of hands when your hands could slip down or get stuck with the saw disc.
Pay attention to the disc reaching full speed before cutting.
Switch the saw head at a speed so as to avoid any motor overloading and blocking the disc.
Before removing any jammed material switch the machine off, let the disc stop and unplug the machine.
With the cutting finished, hold the saw head pressed down, release the switch and wait until the disc stops. It is only then that you can move your hands.

Emergency Action

Apply the first aid adequate to the injury and get qualified medical assistance as quickly as possible. Protect the injured person from more accidents and calm him/her down.
For the sake of eventual accident, in accordance with DIN 13164, a workplace has to be fitted with a first-aid kit. It is essential to replace any used material in the first-aid kit immediately after it has been used. If you seek help, state the following pieces of information:

Accident site
Accident type
Number of injured persons
Injury type(s)

Residual risks and protective measures

Mechanical residual risks:
Cut, amputation:
A rotating circular saw blade may lead to serious cutting injuries. Keep your hands in a safe distance from the circular saw blade.
Impact:
If the cut material is held in hand, the rotating circular saw blade may throw it down and injure you! Secure the cut material properly using a vice at all times!
Exposure to noise:
Hearing damage: Hearing may get damaged if the appliance is worked with for a long time. Personal protective aids to prevent hearing damage should always be worn.
Other risks:
Thrown-off items or liquids:
Pieces of the cut material secured improperly may be thrown off and cause injury as a result of circular saw blade rotation. The cut material should always be secured and protective glasses worn.

Disposal

Disposal instructions are illustrated in the form of pictograms on the device or packaging. A description of the pictograms is given in the “Identification” chapter.
Disposal of transport packaging
Packaging protects the device against damage during transport. Packaging materials are usually selected according to their effect on the environment and disposal methods and can
therefore be recycled.
Returning of the packaging back to circulation saves resources and costs for packaging disposal.
Parts of the packaging (e.g. foil, styropor) may be dangerous for children. Risk of suffocation!
Keep these parts of the packaging out of reach of children and dispose of as soon as possible. Do not put electrical appliances to household waste – use collection centers in your town. Ask the municipality authorities where such collection centers can be found. If electrical appliances are disposed of in an uncontrolled manner, hazardous substances can get into groundwater through the weather and – as a result – penetrate the food chain or poison the flora and fauna for a number of years. When the appliance is to be changed for a new one, the seller is legally obliged to accept the old appliance, at least for free disposal.

Operator Requirements

The operator shall read the instruction manual carefully before using the unit.

Qualification
No special qualification is required for use of the unit except for detailed direction by a professional.
Minimum Age
The product has been designed to be used by persons over 18 years of age.
If the product is to be used by children below the age of 8 or persons with reduced physical, sensory or mental skills or with a lack of experience and knowledge, they must be
supervised or instructed in the safe use of the appliance and understand the resulting risks. Children must not play with the appliance. Cleaning and user maintenance must not be performed by children without supervision.
Training
Use of the unit requires adequate lessons by a professional or the use of the manual only. Special training is not required.

**Technical Data

**

MITRE-BOX SAW GRK 250/300 #55003

Voltage/Frequency:| 230 V~50 Hz
Motor Capacity:| 1900 W
Saw disc – Ø:| 250 x 20
Saw disc speed:| 5000 rpm.
Cutting width at 90°(max):| 70 x 305 mm
Cutting width at 45° (max):| 40 x 205 mm
Noise level L WA:| 107 dB
Weight including support:| 24,5 kg
MITRE-BOX SAW GRK 250/500 #55004

Voltage/Frequency:| 230 V~50 Hz
Motor Capacity:| 1900 W
Saw disc – Ø:| 250 x 20
Saw disc speed:| 5000 rpm.
Cutting width at 90°(max):| 70 x 500 mm
Cutting width at 45° (max):| 40 x 350 mm
Noise level L WA:| 107 dB
Weight:| 20 kg
MITRE-BOX SAW GRK 210/300 #55006

Voltage/Frequency:| 230 V~50 Hz
Motor Capacity:| 1900 W
Saw disc – Ø:| 210 x 30
Saw disc speed:| 5000 rpm.
Cutting width at 90°(max):| 60 x 310 mm
Cutting width at 45° (max):| 35 x 210 mm
Noise level L WA:| 107 dB
Weight:| 14 kg
MITRE-BOX SAW GRK 210/300 #00531

Voltage/Frequency:| 230 V~50 Hz
Motor Capacity:| 1900 W
Saw disc – Ø (2x):| 210 x 30
Saw disc speed:| 5000 rpm.
Cutting width at 90°(max):| 60 x 310 mm
Cutting width at 45° (max):| 35 x 210 mm
Noise level L WA:| 110 dB
Weight:| 13,5 kg
MITRE-BOX SAW GRK 250/300 #00562

Transport and storage
If the appliance has not been used for a long time, unplug it and keep it in a place inaccessible to children. Make sure such place is dry and safe.
Cable Cross-section
Cable length Required Cross-section:

to 15 m	1,5 mm²
15 – 40 m	2,5 mm²

If the supply cables are too long while the cross-section of them is small, the voltage drops, which may cause motor difficulties. Therefore, a supply cable of sufficient crosssection is required for the saw to work perfectly. The cable length shown in the table applies to the distance between the switchboard/fuse box and the trimming saw plug. It is of no relevance than whether a supply and extension cables are combined or it is a supply cable alone.

Glossary of Terms

Saw Shaft
the shaft, which the saw disc is attached to.
Cross cut
Cutting across the grain.
Skew Cut
Cutting not at a right angle to the cut piece surface
Bevel Square Cut
Cutting not at a right angle to the cut piece front edge
Double Bevel Square Cut
bevel and skew cut combination
Revolutions per minute
Revolutions did by a rotating object per one minute.
Cutting line
The line on a piece to be cut off on the saw table is directly aligned with the saw disc, which applies also to the part already cut away.
Spring Set
Dimension, by which the saw tooth tip is kicked up away outside the saw disc body width.
Saw Kerfs
A kerf is formed by the rotating saw disc in the material cut.
Improper Angular Adjustment Saw disc maladjustment.
Resin (resin ingredient)
Dried resin in the wood.
Material to be Cut
An object being cut .

Support assembly
Support assembly: see pic. 7 (#55003)
Fixing the saw in the place of work
The saw can be used as both a mobile and stationary appliance.
If used as a stationary appliance, it must be screwed down to the work table or workbench using appropriate holes. A vacuum cleaner with a common hose connection may also be fitted on the exhaust neck instead of the dust bag. (15)
Safety instructions for the operator
The saw must not be used for other materials than those described in the Operating Instructions.

Use the appliance only after you have thoroughly read the Operating Instructions.
Follow all safety instructions specified in this manual.
Behave responsibly to other persons.

Procedure

Switch on the trimming saw using the switch on the handgrip inner side. Before cutting, the saw disc should be turning at a maximum speed. Hold the handgrip of the workload and put it on slowly. Take care to have switching even without any jerky movements. Exert pressure adequate to the character and dimension of the material to be cut in the direction of the saw disc travel. The piece to be cut should be firmly pushed against the clamping plate. Additional supports should be used to enable the safe cutting of long pieces. Upon the cut being completed, steer the head back to the initial position and check the saw disc cover for the correct position. Sharpen the saw discs regularly and replace them when necessary.
NOTICE: Never use saw discs if damaged.

Handling (Pic. 1, 3)

Never perform adjustment work when the appliance is running. The appliance must always be unplugged before adjusting! Risk of serious injury.

Skew cut
For skew cuts up to 45°, the lock lever on the rear side of the machine (13) should be released. Skew the head of the machine from the left to the required angle or to the end top (45°) and then lock it with the lever (13).

Scarf cut
The machine head at 45° may be turned to the right and the left. Smaller angles may be set easily by deducting the required value on the scale on the table. Release the lock screw (14), turn the machine head (grid table) to the required position and fix it in required position using the lock screw (14).

Combination Cut (horizontal and vertical up to 45°)
Saw cuts combinations:

Saw Disc Replacement (Fig. 2, 3, 4)

CAUTION: Get down to the replacement only with the saw unplugged and the saw disc at standstill! Unscrew (H), release (G), and remove the handgrip with the movable saw disc cover

Lock the saw disc using lock knob j(l).

Release the saw disc screw (J) in a clockwise direction using a socket spanner (left-hand thread). Remove the saw and replace it with a new one, the teeth’ inclination should coincide with the direction of the arrow on the casing. Before fitting in the saw disc, carefully clean the saw disc flange. Slip the saw disc external flange on the shaft, screw the lock screw on (left-hand thread) and fasten in place. The re-fit the saw disc cover. Prior to connecting to the mains, est the idle run by lifting and dropping the work head.

Step-by-step instructions

Draw the guiding direction on the cut piece.
Put the cut piece on the work table and adjust the circular saw blade according to the mark when the appliance is still.
Now secure the cut piece using a clamp.
Check again the circular saw blade position if matching the mark.
Switch the appliance on and perform the cut.
Switch the appliance off and wait until the circular saw blade completely stops.
Remove the sawdust and take the cut piece away.
If the saw has not been used for a long time, it must necessarily be unplugged.

Failures – causes – removal

Failure	Cause	Removal
Cut angle not matching	Saw the head position was not OK	To be adjusted based

on instructions in the “Assembly and first start-up“ chapter
Engine not working| Saw the head position was not OK| Carbons to be replaced Repair by an expert

Inspections and maintenance

Have the repairs done by a skilled servicing technician only. Only genuine spare parts should be used.
Protect the saw against wet and moisture conditions, use it in dry areas only.

Maintenance (brushes and collector)
It is recommended that you turn to a specialized servicing place for the brush replacement and have the collector maintained on the occasion to provide for a perfect function of the motor.

Lubrication
All the motor bearings are lubricated sufficiently for the entire service life of the saw subject to normal conditions of operation. Maintenance is not required.

Lubrication in Case of Necessity:

Rotation axle lubrication if the run gets tight
1.1 Loosen the set nut a put a few drops of the lubricant oil on the washer and the contact area.
1.2 Remove it and lubricate the rotating axle and contact areas.
NOTICE: Before removing the axle, the saw disc top cover and the end stop upper part have to be removed first. The job should be accomplished by a skilled servicing technician. Mind the position of both the springs ends in the case. Mark it with a piece of chalk to facilitate re-installation.
To provide a silent and easy run of the swinging protective cover control lever, all the metal and plastic contact areas should be lightly lubricated with sewing machine oil now and then. Take care not to use an excessive amount of oil. Sawdust tends to deposit in the excessive oil and form hard spots.

NOTICE: „ Unplug the machine prior to any adjustment or maintenance. “

Handling Motor

Caution: To avoid any damage of the motor, clean it (cooling) of the sawdust and dust regularly.

Connect the saw to the mains of 230V secured with a 16 A fuse and a protective undercurrent switch. Poor protection may cause damage to the motor. \
If the motor does not start immediately, let the switch go.
UNPLUG . Check the saw disc for an easy run. If it does run easily, try restarting again.
When the motor stops suddenly while cutting is in progress, push the switch off and unplug the machine. Release the saw disc from the material cut. Afterward, you may finish the job.
Fuses or protection switches may respond to conditions as follows: a. THE MOTOR IS OVERLOADED. If the saw disc is immersed in the material too fast or if the saw is switched on and off too often, it may result in motor overloading or a fault on the gear.
b. Fluctuations of the mains voltage within a range of ±10% will not pose any risk to the normal operation of the saw. However, if the load is too high, the voltage on the motor connection terminals should correspond to the plate data.
Many problems of the motor may be caused by loosened or defective connectors, overloading, and Undervoltage (the latter may result from too small a cross-section of supply cables). Always check all the connections, voltage value and the current consumed.

Service

Any technical questions? Complaint? Do you need spare parts or an operation manual?
Go to our website www.guede.com and the section Service will help you quickly and without bureaucracy. Please, help us to help you. In order to identify your device in case of a complaint, please indicate the serial number, order number, and year of manufacture. All information is available on the product label. To have all information always at hand, put them down.

Serial number:
Order number:
Year of manufacture:

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

Important information for the customer
Please be sure to know that returning the product in or after the warranty period must be made in the original packaging.
Article No. / Machine description |

55003| / GRK 250/300

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55004| / GRK 250/500

55006| / GRK 210/300

00531| / GRK 210/300 SET

00562| / GRK 250/300 SET

Appropriate EU Directives

2006/95/EC	2004/108/EC
2009/105/EC	1907/2006/EC
2011/65/EC ROHS	2009/142/EC
89/686/EEC (PPE)	1935/2004/EC

2000/14/EC2005/88/EC
Noise: guaranteed LWA 108 dB (A)| 97/68/EC
Emission No.:
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2006/42/EC Annex IV Notified Body: Type Ex. Cert.-No.:

Harmonised standards used

EN 61029-1:2009
EN 61029-2-9:2002
EN 55014-2/A1:2001
**EN 61000-3-11:2000*
EN 61000-3-2/A2:2005 (#55003, #00562)
EN 55014-1/A2:2002 (#55003, #00562)
EN 55014-1:2006 (#55004, #55006, #00531)
EN 61000-3-2:2006 (#55004, #55006, #00531)**

Technical documentation
Managing Director

Wolpertshausen, 19.05.2014
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
www.guede.com