GRIT GIS 150 - Grinder Fein - Free user manual and instructions
Find the device manual for free GRIT GIS 150 Fein in PDF.
| Product type | Stationary belt sander (grinder) |
| Brand | Fein |
| Model | GRIT GIS 150 |
| No-load speed | 3000 rpm |
| Power supply | Three-phase, 400 V, 50 Hz (estimated) |
| Intended use | Sanding of metals (except magnesium) sheltered from weather |
| Emergency stop device | Red button, stop in ~50 s |
| Spark protection | Adjustable protective screen |
| Upper protective cover | Removable for sanding flat surfaces |
| Sanding support | Adjustable, max gap 2 mm |
| Stop | Adjustable, max gap 2 mm |
| Belt centering | Via star screw on the side |
| Chip box | Integrated, regular emptying required |
| Dust extraction | Possible via hose connection (22) |
| Daily maintenance | Lubrication and blowing of ventilation openings |
| Abrasive belt replacement | Tensioning lever, simple step-by-step |
| Overload protection | Automatic stop, cooling ~15 min |
| Required protective equipment | Safety glasses, hearing protection, dust mask, gloves |
| Warranty | According to national legislation + manufacturer declaration |
| Compliance | CE, UKCA |
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USER MANUAL GRIT GIS 150 Fein
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Technical illustration of two mechanical components with visible gears, springs, and wiring (no text or symbols)GIS150 (**) 7 902 ...
GIS150 2V (**) 7 902 ...
GIS75 (**) 7 902 ...
GIS75 2V (**) 7 902 ...
| GIS75 (**) | GIS75 (**) | GIS75 2V (**) | GIS75 2V (**) | |
| 7 902 ... 7 902 ... 7 902 ... | ||||
| n | /min 2 880 3 450 2 880 3 450 | |||
| P_1 | W 4 000 4 000 4 000 4 000 | |||
| UV 3 × 400 | 3 × 440 | 3 × 230 | 3 × 220 | |
| 3~ | 3~ | 3~ | 3~ | |
| fHz 50 60 50 60 | ||||
| v_0 | m/s 30 36 30 36 | |||
| kg 74 74 74 74 | ||||
| l_1 | mm 2 000 2 000 2 000 2 000 | |||
| l_2 | mm 75 75 75 75 | |||
| ±/l /l /l /l | ± | ± | ± | |
| GIS150 (**) | GIS150 (**) | GIS150 2V (**) | GIS150 2V (**) | ||
| 7 902 ... 7 902 ... 7 902 ... 7 902 ... | |||||
| n | /min 2 880 3 450 2 880 3 450 | ||||
| P_1 | W | 4 000 | 4 000 | 4 000 | 4 000 |
| U | V | 3 × 400 | 3 × 440 | 3 × 230 | 3 × 220 |
| 3~ | 3~ | 3~ | 3~ | ||
| f | Hz | 50 | 60 | 50 | 60 |
| v_0 | m/s | 30 | 36 | 30 | 36 |
| kg | 88 | 88 | 88 | 88 | |
| l_1 | mm 2 000 2 000 2 000 2 000 | ||||
| l_2 | mm | 150 | 150 | 150 | 150 |
| ± /l | ± /l | ± /l | ± /l | ||

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Technical diagram of an electric motor with numbered components and exploded view, including internal assembly and component details.
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1 max 2 mm 9 6
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2 max 2 mm 3 25
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Illustration of hands using a tool to cut a mechanical component, no text or symbols present
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Illustration of a manual tool cutting through a mechanical component (no text or symbols visible)
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Illustration of hands using a lathe machine to work on a workbench, with no visible text or symbols
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6 1000 mm 800 mm 24gel L_wA (re 1 pW), in
Dezibel 90 100,5
Leerlauf Schleifen
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 |
| kg | kg | Weight according to EPTA-Procedure 01 | |
| Character Unit of measurement, international | Unit of measurement, national | Explanation |
| 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) using the grinding belts recommended 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 Stop
4 Spark guard
5 Wing bolts of the spark guard
6 Grinding rest
7 Dust collector
8 Screw for chip/grinding-dust box
9 Star-knob bolt for grinding rest
10 Adjustment screw of support surface for plane grinding
11 Clamping lever
12 Safety pushbutton
13 Star-knob bolt for adjusting the tracking of the grinding belt
14 Plug
15 Cooling-air openings for motor
16 On/Off switch
17 Contact wheel
18 Support surface for plane grinding
19 Drive wheel
20 Screw for side cover
21 Side cover
22 Hose connection socket for dust extraction
23 Instruction label
24 Clamping lever for adjustment of the working height
25 Fastening screws for stop
Assembly instructions.
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 6).
Loosen both clamping levers (24). Set the machine to the required working height.
Tighten both clamping levers (24) again.
Adjusting the spark guard (4).
Loosen both wing bolts (5) and adjust the spark guard (4) in such a manner that the grinding belt is covered off as far as possible.
Tighten both wing bolts again.
Adjusting the grinding rest (6) (figure 1).
Loosen star-knob bolt (9) and adjust the gap size to 2 mm (max.).
Tighten the star-knob bolt again.
Adjusting the support surface for plane grinding (18).
For plane grinding, the support surface for plane grinding (18) must be aligned parallel to the grinding belt and face against it over the complete surface.
Loosen screw (20) and fold down the side cover (21).
Loosen the screws (10) and align the support surface for plane grinding (18). The gap clearance may not exceed 2 mm max.!
Tighten screws (10) again.
Shut the side cover (21) and tighten screw (20) again.
Adjust the gap clearance at the stop to (3) 2 mm. For this, loosen screws (25), adjust the stop (3) and retighten the screws (25). (figure 2)
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 (13) until centred.
If the belt tracking cannot be adjusted centred:
Clean the drive wheel (19) and the contact wheel (17) 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 (20) and fold down the side cover (21). Loosen star-knob bolt (9) and remove the grinding rest and the chip/grinding-dust box (7).

Tilt lever (11) downward to release the tensioning device.
Remove the old grinding belt.
Before attaching the new grinding belt, observe the information concerning the running direction on the
inner side of the grinding belt! It must correspond with the running direction of the drive wheel.
Place the grinding belt both around the drive wheel (19) and around the contact wheel (17).

Tilt lever (11) upward to tension the grinding belt.
Shut the side cover (21) and tighten screw (20) again.
Mount the grinding rest (6) and the chip/grinding-dust box (7).
Check the gap size of the grinding rest. (figure 1)
Switch the machine on and adjust the belt run.
Operating instructions.
Switching on:
Disengage and fold up the safety pushbutton (12). Press pushbutton "I" (16).
Switching off:
Fold up safety pushbutton (12). Press pushbutton "0" (16).

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.
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 (9) is firmly tightened.
Make sure that the top safety cover (1) is secured with star-knob bolt (4) and the side cover (21) is closed.
Check the gap size of the grinding rest. (figure 1)
Check the position of the support surface for plane grinding (18). The screws (10) must be in the lower position.
Check if the spark guard (4) 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 (22) to an exhauster.
Noise emission values.
Idle Sanding
A-weighted emission
pressure power level
measured at the work-
place 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 (15) at the motor housing and the marked locations with compressed air (see Instruction label (23)).

Lubricate the machine daily (when in use) with machine oil at the locations marked (see Instruction label (23)).
Check the drive disc (19) and the contact disc (17) for wear and damage each time when replacing a grinding belt. Have damaged parts replaced.
Loosen star-knob bolt (9).
Remove the chip/grinding-dust box (7) 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.
Tighten star-knob bolt (9).
Cleaning the exterior of the machine with compressed air.
If required, you can change the following parts yourself: Grinding belt, spark guard (4)
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, D-73529 Schwäbisch Gmünd
Environmental protection, disposal.
Packaging, worn out machines and accessories should be sorted for environment-friendly recycling.
Connection diagrams.
Type GIS75, GIS150 Page 96
Type GIS75 2V, GIS150 2V Page 97
Still inn underlag for plansliping (18).
L_wA (OTH. 1 nBT),
децибел 90 100,5
China RoHS Status Certificate
中国 RoHS 认证概况
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
2011/65/EU, 2006/42/EG, 2014/30/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 Management Development Director of Product