GRIT GI 75 - Grinder Fein - Free user manual and instructions

Product Type	Belt grinder for metals
Brand	Fein
Model	GRIT GI 75
Intended Use	Sanding and deburring of metals (except magnesium)
Power Supply	400 V, 50 Hz, three-phase (estimated from nameplate)
Speed	3,000 rpm
Abrasive Belt Width	75 mm (deduced from model)
Sound Pressure Level (idle)	80.5 dB(A)
Sound Pressure Level (load)	94 dB(A)
Safety Devices	Emergency stop, protective cover, spark guard
Adjustment Functions	Tilt, belt tracking, variable speed (2H models)
Daily Maintenance	Lubricating indicated points, cleaning ventilation slots, emptying chip box
User-Replaceable Parts	Abrasive belt, protective screen
Optional Accessories	Radius sanding module GIR, tube sanding module GIC, adapter GIL, base GIM
Compliance	CE and UKCA per market
Warranty	According to national legislation and manufacturer's declaration
Overload Protection	Automatic shutdown in case of heavy load, restart after cooling (15 min)
Surface Temperature	Can become very hot, do not touch
Dust Extraction Connection	Possibility to connect a dust extraction device via hose (9)
Included Documentation	Instruction manual and safety instructions

Frequently Asked Questions - GRIT GI 75 Fein

How do I change the abrasive belt?

Disconnect the machine. Open the side cover, loosen the star screw on the sanding support, remove the support and the chip box. Lower the tension lever to release the belt, then remove the old belt. Place the new belt following the rotation direction indicated on the back. Raise the lever to tension the belt. If necessary, adjust the tensioning device with the screws. Close the cover and remount the support.

How do I adjust the tilt of the machine?

Loosen the two clamping levers (28) on the sides. Adjust the device to the desired working height, then retighten the levers.

What should I do if the abrasive belt does not center?

Briefly start the machine and observe the belt movement. Use the star screw (17) to adjust the tracking. If the belt still does not center, clean the drive wheel and contact wheel with compressed air and check that they are not worn or deformed.

How do I use the emergency stop?

In case of danger, immediately press the red emergency stop button (15). The machine stops in about 50 seconds. To reset, unlock the button by turning or pulling it depending on the model.

What type of abrasive belt should I use?

Use only abrasive belts approved by Fein, specially designed for this machine. Do not use worn, torn, or dirty belts. Follow the manufacturer's instructions regarding grit and dimensions.

How do I clean the machine?

For daily maintenance, blow compressed air into the ventilation slots and on the lubrication points. Clean the exterior with compressed air. Regularly empty the chip box after its contents have completely cooled.

What is the required supply voltage?

The voltage and frequency must match the information on the nameplate. In general, the device is designed for three-phase alternating current (e.g., 400 V, 50 Hz). Have the connection carried out by a professional electrician.

Can I use the machine for sanding wood?

No, the device is designed only for sanding metals (except magnesium). Use on wood or other materials can generate flammable or explosive dust and damage the machine.

How do I safely empty the chip box?

Before emptying the chip box, wait until its contents have cooled sufficiently (metal chips can be hot). Dispose of the contents in a suitable, non-flammable container. Wear protective gloves.

Where can I find spare parts?

The current spare parts list is available at www.fein.com. You can replace the abrasive belt and protective screen yourself. For other repairs, contact Fein customer service or an authorized workshop.

USER MANUAL GRIT GI 75 Fein

Technical illustration of two mechanical components with visible gears and housing (no text or symbols)

GI75 (**) 7 902 ...

GI75 2V (**) 7 902 ...

GI75 2H (**) 7 902 ...

GI75 2H2V (**) 7 902 ...

GI150 (**) 7 902 ...

GI150 2V (**) 7 902 ...

GI150 2H (**) 7 902 ...

GI150 2H2V (**) 7 902 ...

		GI75(**)	GI75(**)	GI75 2V(**)	GI75 2V(**)	GI75 2H(**)	GI75 2H(**)	GI75 2H2V(**)	GI75 2H2V(**)
		7 902 ... 7 902 ... 7 902 ... 7 902 ... 7 902 ... 7 902 ... 7 902 ... 7 902 ...
n	/min 2 880 3 450 2 880 3 450					1 440/2 880	1 730/3 450	1 440/2 880	1 730/3 450
P_1	W 4 000 4 000 4 000 4 000					2 600/3 100	2 600/3 100	2 600/3 100	2 600/3 100
UV 3 x 400		3 x 4403~	3 x 2303~	3 x 2203~	3 x 4003~	3 x 4403~	3 x 2303~	3 x 2203~	3 x 2203~
fHz 50 60 50 60 50 60 50 60
v_0	m/s	30	36	30	36	15/30	18/36	15/30	18/36
	kg 65 65 65 65 65 65 65
I_1	mm	2 000	2 000	2 000	2 000	2 000	2 000	2 000	2 000
I_2	mm 75 75 75 75 75 75 75
		±/l /l /l /l /l/ l /l		±	±	±	±	±	±

		GI150[**]	GI150[**]	GI150 2V[**]	GI150 2V[**]	GI150 2H[**]	GI150 2H[**]	GI150 2H2V[**]	GI150 2H2V[**]
		7 902 ... 7 902 ... 7 902 ... 7 902 ... 7 902 ... 7 902 ... 7 902 ... 7 902 ...
n	/min 2 880 3 450 2 880 3 450					1 440/2 880	1 730/3 450	1 440/2 880	1 730/3 450
P_1	W 4 000 4 000 4 000 4 000					2 600/3 100	2 600/3 100	2 600/3 100	2 600/3 100
UV	3 × 400	3 × 440	3 × 230	3 × 220	3 × 400	3 × 440	3 × 230	3 × 220
		3~	3~	3~	3~	3~	3~	3~	3~
f	Hz	50	60	50	60	50	60	50	60
v_0	m/s	30	36	30	36	15/30	18/36	15/30	18/36
	kg	82	82	82	82	82	82	82	82
l_1	mm	2 000	2 000	2 000	2 000	2 000	2 000	2 000	2 000
l_2	mm	150	150	150	150	150	150	150	150
		± /l	± /l	± /l	± /l	± /l	± /l	± /l	± /l

de 8 es 35 sv 62 pl 88 en 14 pt 40 fi 67 ru 94 fr 19 el 46 hu 72 zh(CM) 100 it 24 da 52 cs 78 nl 30 no 57 sk 83

The machine may only be operated by specialised personnel or instructed persons.

Utilisation prévue.

Technical diagram of an electric motor with numbered components and exploded view, including internal parts and assembly details.

1 11 7 < 2 mm

2 < 2 mm 4 3

3 100 mm

Technical illustration of a manual welding or cutting process with tools and components (no text or symbols)

5 100 mm

6 14 13

7 1000 mm 800 mm 28 4x

1000 mm 800 mm 28 4x

Translation of the Original Instructions.

Symbols, abbreviations and terms used.

The symbols in the Instruction Manual and on the machine shall aide in directing your attention to possible hazardous situations when working with this machine.

Symbol, character	Explanation
	Do not touch the rotating parts of the machine.
	Observe the instructions in the text or graphic opposite!
	Make sure to read the enclosed documents such as the Instruction Manual and the General Safety Instructions.
	Before commencing this working step, pull the mains plug out of the socket. Otherwise there may be danger of injury caused by unintentional starting of the machine.
	Use eye protection during operation.
	Use ear protection during operation.
	Use a dust mask during operation.
	Use protective gloves during operation.
	Danger warning
	These locations can become hot.
CE	Confirms the conformity of the power tool with the directives of the European Community.
UKCA	Confirms the conformity of the power tool with the directives of Great Britain (England, Wales, Scotland).
	Worn out machine and other electrotechnical and electrical products should be sorted separately for environmental-friendly recycling.
3~ Mains supply: three-phase alternating current
	Switching on
	Switching off
	Rotation direction
±/l Product with basic insulation plus additional insulation on touchable, conductive parts connected to the protective conductor.
(**) may contain numbers and letters

Character Unit of measurement, international		Unit of measurement, national	Explanation
v_0	m/s m/s Sanding-belt	speed
n	/min, min ^-1 , rpm, r/min	rpm No-load speed
P_1	W	W	P o w
UV	V	R	a t e
f	Hz	Hz	Frequency
l_1	mm	mm	Sanding-belt length
l_2	mm	mm	Sanding-belt width

Character Unit of measurement, international	Unit of measurement, national	Explanation
	kg kg Weight according to EPTA-Procedure 01
	m, s, kg, A, mm, V, W, Hz, N, °C, dB, min, m/s ^2	Basic and derived units of measurement from the international system of units SI.

For your safety.

Do not use this machine before you have thoroughly read and completely understood this Instruction Manual and the enclosed "General

Safety Instructions" (document number 3 41 30

054 06 1), including the figures, specifications and safety regulations.

Please also observe the relevant national regulations on electrical safety and occupational safety.

Non-observance of the safety instructions in the said documentation can lead to an electric shock, burns and/or severe injuries.

This Instruction Manual should be kept for later use and enclosed with the power tool, should it be passed on or sold.

Intended use of the machine.

This machine is intended for grinding metal materials (except magnesium) and for grinding with the GIR radius grinding module, the GIC cylindrical grinding device, the GIL grinding device or for mobile use with the GIM undercarriage using the grinding belts approved by FEIN in weather-protected environments.

Special safety instructions.

Wear personal protective equipment. Depending on application, use face shield, safety goggles or safety glasses. Where appropriate, wear dust mask, hearing protectors, gloves and workshop apron capable of stopping small abrasive or workpiece fragments. The eye protection must be capable of stopping flying debris generated by various operations. The dust mask or respirator must be capable of filtrating particles generated by your operation. Prolonged exposure to high intensity noise may cause hearing loss.

While working, do not wear loose clothing, jewellery or open, long hair. Despite protective devices, loose objects can be snagged or caught by moving parts and lead to injury.

Do not use worn, torn or heavily clogged grinding belts. Handle grinding belts carefully and store them according to the manufacturer's instructions. Do not bend or fold grinding belts! Damaged grinding belts can tear, be flung away and injure someone.

Do not use grinding belts or other accessories which are not specifically designed and recommended by the power tool manufacturer. Safe operation is not ensured merely because a grinding belt or accessory fits your machine.

Always use the protective devices attached on the machine. The protective devices must be securely mounted to the machine in order to achieve maximum safety. The protective devices are supposed to protect the user from grinding particles thrown from the machine and from accidental contact with the grinding belt.

Warning! Danger of fire and explosion! When grinding metals (e.g., aluminium), dust develops that may be combustible or explosive. Do not operate the machine near flammable materials. Sparks could cause these materials to ignite.

Warning! Danger of fire! When grinding metals, glowing metal and sanding-belt particles develop that are collected in the chip/grinding-dust box. Before emptying, the contents of the chip/grinding-dust box must have cooled down sufficiently and may only be disposed of in suitable containers.

Pay attention that other persons are not put at risk from sparking. Remove flammable materials in close vicinity. Sparking occurs when grinding metal.

Keep bystanders a safe distance away from work area. Anyone entering the work area must wear personal protective equipment. Fragments of workpiece or of a broken accessory may fly away and cause injury beyond immediate area of operation.

The workpiece must always lie securely on the grinding rest and the stop. Workpieces that are too small or too thin may not be worked. Danger of injury from workpieces being thrown from the machine.

The surface being worked can become very hot. Do not touch it with your hands.

Never touch the running grinding belt. Danger of injury.

In situations of danger, immediately press the safety pushbutton. The machine runs on for approx. 50 seconds.

Clean the ventilation openings on the power tool at regular intervals using non-metal tools. The blower of the motor draws dust into the housing. An excessive accumulation of metallic dust can cause an electrical hazard.

Ensure that the machine is positioned securely and horizontal. Serious injuries can be caused if the machine tips over during operation.

The mains plug of the machine may be mounted only by a qualified electrician. The protective conductor in the mains socket outlet must be connected with the protective earthing of the mains supply.

Pull out the mains plug for maintenance and repair!

Switching the machine on unintentionally can lead to serious injuries.

Have the electrical safety of the machine checked regularly in accordance with statutory regulations. For machines that have not been checked, there may be danger of electrical shock!

Check the rotation direction of the motor before starting the operation of the machine for the first time. If the rotation direction of the motor is incorrect, the workpiece can be thrown from the machine and cause an accident. The rotation direction may be changed only by a qualifiedelectrician.

Make sure that you or other persons are not standing directly next to the grinding belt when switching the machine on. The grinding belt can tear apart and cause serious injuries.

Handling hazardous dusts

For work procedures with this power tool where material is removed, dusts develop that can be hazardous to one's health.

Contact with or inhaling some dust types, e. g. asbestos and asbestos-containing materials, lead-containing coatings, metal, some wood types, minerals, silicate particles from materials containing stone, paint solvents, wood preservatives, antifouling paints for vessels, can trigger allergic reactions to the operator or bystanders and/or lead to respiratory infections, cancer, birth defects or other reproductive harm. The risk from inhaling dusts depends on the exposition. Use dust extraction matched appropriately for the developing dust, as well as personal protective equipment and provide for good ventilation of the workplace. Leave the processing of asbestos-containing materials to specialists.

Wood and light-metal dust, hot mixtures of grinding dust and chemical materials can self-ignite under unfavourable conditions or cause an explosion. Avoid sparking in the direction of the dust collector as well as overheating of the power tool and the materials being sanded, empty the dust collector/container in time, observe the material manufacturer's working instructions, as well as the relevant regulations in your country for the materials being worked.

At a glance.

1 Safety cover, top
2 Star-knob bolt, safety cover
3 Screws for adjustment of the gap clearance
4 Stop
5 Spark guard
6 Wing bolts of the spark guard
7 Grinding rest
8 Dust collector
9 Hose connection socket for dust extraction
10 Screw for chip/grinding-dust box
11 Star-knob bolt for grinding rest
12 Adjustment screw of support surface for plane grinding
13 Clamping lever
14 Screws for coarse adjustment of the belt tension
15 Safety pushbutton
16 Plug
17 Star-knob bolt for adjusting the tracking of the grinding belt
18 Ventilation openings
19 On/Off switch
20 Speed selector (only 2H models)

21 Contact wheel
22 Support surface for plane grinding
23 Drive wheel
24 Lubricating nipple
25 Screw for side cover
26 Side cover
27 Instruction label
28 Clamping lever for adjustment of the working height

Assembly instructions (figure 7).

Mount the machine on the Fein GIB/GIBE sub base (see assembly instructions).

Fasten the sub base to the floor using suitable dowel/bolt connections. The connections must withstand the forces that arise during working.

Faulty assembly can cause the sub base or work bench to tilt over or the machine to loosen from the sub base or work bench during operation, and lead to serious accidents.

Electrical connection.

The electrical connection, which is to be provided by customer, must be carried out by a qualified electrician.

Observe mains voltage: The mains voltage and the frequency of the power source must agree with the data on the type plate of the machine.

Before starting operation for the first time, check the rotation direction of the motor. The rotation direction may be changed only by a qualified electrician.

Adjustments.

Before any work on the machine itself, pull the mains plug.

Adjusting the incline (figure 7).

Loosen both clamping levers (28). Set the machine to the required working height.

Tighten both clamping levers (28) again.

Adjusting the spark guard (5).

Loosen both wing bolts (6) and adjust the spark guard (5) in such a manner that the grinding belt is covered off as far as possible.

Tighten both wing bolts again.

Adjusting the grinding rest (7) (figure 1).

Loosen star-knob bolt (11) and adjust the gap size to 2 mm (max.).

Tighten the star-knob bolt again.

Adjusting the stop (4)(figure 2)

Loosen screws (3) and adjust a max. gap clearance of 2 mm.

Tighten screws (3) again.

Adjusting the support surface for plane grinding (22).

For plane grinding, the support surface for plane grinding (22) must be aligned parallel to the grinding belt and face against it over the complete surface.

Loosen screw (25) and fold down the side cover (26).

Loosen the screws (12) and align the support surface for plane grinding (22). The gap clearance may not exceed 2 mm max.!(figure 2)

Tighten screws (12) again.

Shut the side cover (26) and tighten screw (25) again.

Adjusting the belt tracking.

Switch the machine on only briefly and check the belt tracking.

If the grinding belt moves left or right, adjust the belt tracking with the starknob bolt (17) until centred.

If the belt tracking cannot be adjusted centred:

Clean the drive wheel (23) and the contact wheel (21) with compressed air.

Check the drive wheel and the contact wheel for wear, deformation and damage. Have damaged components replaced without delay!

Replacing the grinding belt.

Before any work on the machine itself, pull the mains plug.

Loosen screw (25) and fold down the side cover (26).

Loosen star-knob bolt (11) and remove the grinding rest and the chip/grinding-dust box (8).

Tilt lever (13) downward to release the tensioning device.

Remove the old grinding belt.

Before mounting the new grinding belt, observe the running-direction

indication on the rear of the grinding belt! It mus correspond with the rotation direction of the drive wheel.

Place the grinding belt both around the drive wheel (23) and around the contact wheel (21).

Tilt lever (13) upward to tension the grinding belt.

If the grinding belt can not be tensioned sufficiently, the tensioning device must be readjusted. Loosen

both screws (14), change the position of the tensioning device and retighten the screws. (figure 6)

Shut the side cover (26) and tighten screw (25) again.

Mount the grinding rest (7) and the chip/grinding-dust box (8).

Check the gap size of the grinding rest.

Switch the machine on and adjust the belt run.

Operating instructions.

Switching on:

Disengage and fold up the safety pushbutton (15). Press pushbutton "I" (19).

Switching off:

Fold up safety pushbutton (15). Press pushbutton "0" (19).

After switching off, the machine runs on for approx. 50 seconds.

Safety pushbutton:

In situations of danger, press the safety pushbutton to switch the machine off.

Reversing the speed (only 2H models)

Switch position 1: Low speed

Switch position 2: High speed

The speed may only be reversed with switch (3) when the machine is stopped.

Overload protection.

In case of continuous high load over a longer period of time, the machine is switched off. After a cooling-down period of approx. 15 minutes, the machine is ready for operation again.

Contact grinding (figures 3+4).

Check if the star-knob bolt (11) is firmly tightened.

Make sure that the top safety cover (1) is secured with star-knob bolt (4) and the side cover (26) is closed.

Check the gap size of the grinding rest. (figure 1)

Check the position of the support surface for plane grinding (22). The screws (12) must be in the lower position.

Check if the spark guard (5) is properly adjusted and tightened.

Switch the machine on and check the belt run.

Place the workpiece firmly onto the grinding rest.

Guide the workpiece with both hands or fasten it in a fixture.

Plane grinding (figure 5)

Loosen star-knob bolts (4) and remove the top safety cover (1).

Ensure that the gap clearance is correctly adjusted.(figure 2)

Switch the machine on and check the belt run.

Guide the workpiece with both hands and remove it upwards after the working procedure.

Extraction device

We recommend the use of an extraction device.

The machine can be connected via sleeve (9) to an exhauster.

Noise emission values.

Idle Sanding

A-weighted emission pressure power level measured at the workplace L_pA (re 20 Pa), in decibels 80.5 94

Measuring uncertainty K_pA , in decibels 4 4

Measured A-weighted sound power level L_wA (re 1 pW), in decibels 90 100,5

Measuring uncertainty K_wA , in decibels 2.5 2.5

Operating conditions

Speed (rpm)	3 000	3 000
Material	-	ST 37
Dimension	-	8 x 40
Grinding belt		GRIT by Fein
	-	36Z

REMARK: The sum of the measured emission value and respective measuring inaccuracy represents the upper limit of the values that can occur during measuring.

Wear hearing protection!

Measured values determined in accordance with the corresponding product standard (see last page in this Instruction Manual).

Repair and customer service.

Repairs may be carried out only by qualified persons in conformity with the valid regulations.

For repairs, we recommend our FEIN customer service centre, the FEIN authorised service centres and FEIN agencies.

When the machine's power supply cable is damaged, it must be replaced using a specially prepared power supply cable, available from your FEIN customer service agent.

The current spare parts list of this machine can be found on the Internet under www.fein.com.

Daily maintenance

Blow out the ventilation slots (18) at the motor housing and the marked locations with compressed air (see Instruction label (27)).

Lubricate the machine daily (when in use) with machine oil at the locations marked (see Instruction label (27)).

Check the drive disc (23) and the contact disc (21) for wear and damage each time when replacing a grinding belt. Have damaged parts replaced.

Loosen star-knob bolt (11).

Remove the chip/grinding-dust box (8) and dispose of the metal dust.

Before emptying, the contents of the chip/grinding-dust box must have cooled down sufficiently and may only be disposed of in suitable containers.

Mount the emptied chip/grinding-dust box again and set the gap clearance of the grinding rest. (figure 1)

Tighten star-knob bolt (11).

Cleaning the exterior of the machine with compressed air.

Lubricate the bearings of the tensioning device monthly via the lubricating nipple (24).

If required, you can change the following parts yourself: Grinding belt, spark guard

Warranty and liability.

The warranty for the product is valid in accordance with the legal regulations in the country where it is marketed. In addition, FEIN also provides a guarantee in accordance with the FEIN manufacturer's warranty declaration.

The delivery scope of your machine may include only a part of the accessories described or shown in this instruction manual.

Declaration of conformity.

This CE declaration is only valid for European Union and EFTA (European Free Trade Association) countries and only for products intended for the EU- or EFTA market. After placing the product on the EU market the UKCA mark loses its mark validity.

The UKCA declaration is only valid for the Great Britain market (England, Wales and Scotland) and only for products intended for the Great Britain market. After placing the product on the Great Britain market the CE mark loses its mark validity.

FEIN declares itself solely responsible for this product conforming with the relevant provisions given on the last page of this Instruction Manual.

Technical documents at: C. & E. Fein GmbH, C-D1_IA, D-73529 Schwäbisch Gmünd

Environmental protection, disposal.

Packaging, worn out machines and accessories should be sorted for environment-friendly recycling.

Connection diagrams.

Type GI75, GI150 Page 104

Type GI75 2V, GI150 2V Page 105

Type GI75 2H, GI150 2H Page 106

Type GI75 2H2V, GI150 2H2V Page 107

22 Underlag for plansliping

23 Drivskive

24 Smørenippel

25 Skrue for sidedeksel

26 Sidedeksel

27 Henvisningsskilt

28 Spennarm for å stille inn helningen

Monteringsanvisninger (bilde 7).

Fest maskinen på understellet Fein GIB/GIBE (se monteringsanvisning).

Still inn underlag for plansliping (22).

Miljøvern, deponering.

L_wA (oth. 1 nBt),

децибел 90 100,5

Table of Toxic and Hazardous Substances/Elements and their Content as required by China's Management Methods for Controlling Pollution by Electronic Information Products

有毒有害物质 / 成分及其含量表

This CE declaration is only valid for European Union and EFTA (European Free Trade Association) countries and only for products intended for the EU or EFTA market. After placing the product on the EU market the UKCA mark loses its mark validity.

EN ISO 3744:2010

EN ISO 11202:2010

EN ISO 4871:2009

EN ISO 12100:2011

2006/42/EG, 2011/65/EU

U. Hergosell

i. V. S. Böhm i. V. Dr. M. Hergesell

Director of Quality Director of Product Management Development

The UKCA declaration is only valid for the Great Britain market (England, Wales and Scotland) and only for products intended for the Great Britain market. After placing the product on the Great Britain market the CE mark loses its mark validity.

EN ISO 3744:2010

EN ISO 11202:2010

EN ISO 4871:2009

EN ISO 12100:2011

Supply of Machinery Regulations 2008,

The Restriction of the Use of Certain Hazardous

Substances in Electrical and Electronic Equipment

Regulations 2012

U. Hergosell

i. V. S. Böhm i. V. Dr. M. Hergesell

Director of Quality Director of Product Management Development

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