Gesswein UTR Series User manual

User Guide
for
UTR Turbo Air Lappers
Pneumatic Air Grinders & Lappers
UTR-30, UTR-70
850-2250 and 850-2245

2 3
We thank you for choosing our products. This guide provides information on
general machine setup, maintenance, safety instruction and warnings for our
Pneumatic Air Grinders and Lappers.
B. Rules for Long Lasting and Performance Utilization:
Air Tools and the 3-in-1 units, Filter/Regulator and Lubricator
1. For the air tool to remain in the best performance and prolong its life, it is necessary
and important to equip with the 3-in-1 unit (Filter/Regulator & Lubricator).
If the Lubricator is not being used, it is recommended to put a few drops of oil per
every 2 to 3 hours of operation.
2. Before starting, use few drop of turbine oil at the tip of the air hose for lubrication.
3. Set the pressure controller (regulator) at 90psi, which is recommended air pressure for
all air tools. Higher pressure is not necessary and will shorten the tools’ life or cause
damage to the tools.
4. Turn on the tool and let it runs freely (at no load) for few second before operation or
before working on the work-piece.
5. Keep the compressed air in dry condition at all time to prevent rust that destroys
the tools. Avoid moistness or water gets inside the hand-piece by checking the filter
frequently. The air filter on the 3-in-1 unit is used for drying out water. Always check
that the air filter tube does not contain over 80% water. It is advisable that the filter is
drained daily.
6. Make sure that the lubricator or oiler unit is lubricated or contain lubrication oil at all
time. Use only a good grade of light oil, it is important not to use thick and greasy oil.
7. Set the oil controller at 2 drops per minute for lubrication. During the weekend or a long
period vacation, increase to 4 or 5 drops per minute, leave the tool running free for 30
to 60 second before turning off the tool.
8. Keep the unit away from fire, corrosion, moisture.
Operation Conditions; Start & Stop Device:
• The on/off switch is ring throttle action, which is located in the proximity of the hand-
grip; turn the throttle counter clock wise to open and turn clock wise to close it.
• Before connecting to or turning on the air supply, make sure that the throttle is in the off
position.
C. Safety Instructions and Warning
Safety is a primary consideration when using the air tools. The tool should be used in the right
way with good understanding of how to use the tool safely. Read and fully understand all the
instructions before using this tool.
• The tool is designed to be used with the abrasive product for fine polishing. Do not use
this tool for any other purpose.
• Do not burst into full speed operation, which might cause dangerous from over speed.
• Check the air pressure level before starting the operation. Pressure less than 90psi will
reduce output and speed, while higher pressure will lead to premature wear and exces-
sive speed. Excessive pressure is dangerous and shorten tool life.
• Observe accurate mounting of insert tools.
• If noise level exceeds 85dB(A) at the work station, operator must use ear plug and/or
ear mufflers.
• Operator is exposed to get the risk caused by vibrations. Frequent and prolonged expo-
sure to high intensive vibrations can cause disorders, especially to hands and arms.
Disorders caused by vibrations depend on many factors such as types of tool, type of
work, individual operator, and his physical conditions, working conditions, working peri-
od, temperature, etc. The operator must use the tool in accordance with the tool daily
usage of ISO5349.
• The operator shall wear necessary protective approved equipments such as eye pro-
tector, goggles, or face shield at all time during operation. Additional protection devices
should be used where necessary.
• The stopping time or run-down time can be of several seconds, operator shall pay
attention to the risk of drawing in long hair, loose cloth; risk of a whipping compressed
air hose.
• The working area should be well ventilated to avoid possible contaminants in the com-
pressed air exhaust.
• Seek medical advise immediately if any lubricant should contaminate the eyes or be
accidentally ingested.
Protection Devices
• Always wear necessary protective approved equipments such as eye protector, ear pro-
tector, face shield, safety apron, helmet, gloves and any necessary protective clothing.
Air Hose and Fittings:
• Use only the correct, clean air hose and fitting and always check that they are in good
condition and properly installed. Do not use damaged, frayed or deteriorated hose and
fittings, which can cause injury.
• Always keep the hose away from heat sources and sunlight and store it properly after
using and check it before use.
• The air hose may come off and whip if it is not correctly used or the fittings are not
properly installed.
• Avoid using a long hose, short length of hose should be chosen.
Lubrication:
• Air line lubricator should be used. Do not burst into full speed operation. Lithium system
grease is recommended for lubrication of bearings, can and clutch part, gears and gear
cases. Lubricate them when giving maintenance or periodical inspection.
• Seek medical advice immediately if any lubricant should contaminate the eyes or be
accidentally ingested.
Handpiece Air Compressor3 in 1 unit
(Filter/Regulator/Lubricator)
A. General Setup:

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Parts List
UTR Turbo Lapper
Item# 850-2250 / 850-2245
#891-3621/0820
REF. ITEM # DESCRIPTION (Qty.)
1850-2255 Screw (2)
2850-2256 Tool Holder φ3+1mm (2)
3850-2257 Front Cover
3-A 850-2258 O-Ring
4850-2259 Bush
4-A 850-2261 O-Ring
4-B 850-2262 Fixed Ball (42)
5850-2263 Sliding Bush
5-A 850-2264 O-Ring (5)
5-B 850-2265 Washer
6850-2266 Red Front Body for UTR30
6850-2254 Blue Front Body for UTR70
6-A 850-2267 O-Ring
7850-2268 Main Shaft
REF. ITEM # DESCRIPTION (Qty.)
8850-2269 Screw (4)
9850-2271 Bearing
10 850-2272 Plastic Crank (2)
11 850-2273 Bolt
12 850-2274 Front Turbine Cab
13 850-2227 UTR30 Turbine
13 850-2228 UTR70 Turbine
13-A 850-2277 Copper Washer (2)
14 850-2278 Bearing (2)
15 850-2279 Bearing Fixer (2)
16 850-2281 O-Ring (2)
17 850-2282 Washer (4)
18 850-2283 Bearing (2)
19 850-2284 Nut
REF. ITEM # DESCRIPTION (Qty.)
19-A 850-2286 Nut (2)
22-A 850-2287 O-Ring
22-B 850-2288 Air Inlet Body
23 850-2289 Rear Body
S-1 850-2290 Switch Body
S-3 850-2291 O-Ring
S-4 850-2292 O-Ring
S-5 850-2293 C-Ring
N-1 850-2294 On-O Switch
H-C 850-2295 Muer Pipe
H-A 850-2296 Air Hose Set
H-B 850-2297 Quick Joint
A850-2298 Hex Key
201 Hancock Ave. Bridgeport, CT 06605, USA |order toll free 800.243.4466
203.366.5400 |fax [phone] |email [e-mail] |www.gesswein.com
Parts List
UTR Turbo Air Lappers
Item# 850-2250 and 850-2245
Parts List
UTR Turbo Lapper
Item# 850-2250 / 850-2245
#891-3621/0820
REF. ITEM # DESCRIPTION (Qty.)
1850-2255 Screw (2)
2850-2256 Tool Holder φ3+1mm (2)
3850-2257 Front Cover
3-A 850-2258 O-Ring
4850-2259 Bush
4-A 850-2261 O-Ring
4-B 850-2262 Fixed Ball (42)
5850-2263 Sliding Bush
5-A 850-2264 O-Ring (5)
5-B 850-2265 Washer
6850-2266 Red Front Body for UTR30
6850-2254 Blue Front Body for UTR70
6-A 850-2267 O-Ring
7850-2268 Main Shaft
REF. ITEM # DESCRIPTION (Qty.)
8850-2269 Screw (4)
9850-2271 Bearing
10 850-2272 Plastic Crank (2)
11 850-2273 Bolt
12 850-2274 Front Turbine Cab
13 850-2227 UTR30 Turbine
13 850-2228 UTR70 Turbine
13-A 850-2277 Copper Washer (2)
14 850-2278 Bearing (2)
15 850-2279 Bearing Fixer (2)
16 850-2281 O-Ring (2)
17 850-2282 Washer (4)
18 850-2283 Bearing (2)
19 850-2284 Nut
REF. ITEM # DESCRIPTION (Qty.)
19-A 850-2286 Nut (2)
22-A 850-2287 O-Ring
22-B 850-2288 Air Inlet Body
23 850-2289 Rear Body
S-1 850-2290 Switch Body
S-3 850-2291 O-Ring
S-4 850-2292 O-Ring
S-5 850-2293 C-Ring
N-1 850-2294 On-O Switch
H-C 850-2295 Muer Pipe
H-A 850-2296 Air Hose Set
H-B 850-2297 Quick Joint
A850-2298 Hex Key
201 Hancock Ave. Bridgeport, CT 06605, USA |order toll free 800.243.4466
203.366.5400 |fax [phone] |email [e-mail] |www.gesswein.com
Parts List
UTR Turbo Lapper
Item# 850-2250 / 850-2245
#891-3621/0820
REF. ITEM # DESCRIPTION (Qty.)
1850-2255 Screw (2)
2850-2256 Tool Holder φ3+1mm (2)
3850-2257 Front Cover
3-A 850-2258 O-Ring
4850-2259 Bush
4-A 850-2261 O-Ring
4-B 850-2262 Fixed Ball (42)
5850-2263 Sliding Bush
5-A 850-2264 O-Ring (5)
5-B 850-2265 Washer
6850-2266 Red Front Body for UTR30
6850-2254 Blue Front Body for UTR70
6-A 850-2267 O-Ring
7850-2268 Main Shaft
REF. ITEM # DESCRIPTION (Qty.)
8850-2269 Screw (4)
9850-2271 Bearing
10 850-2272 Plastic Crank (2)
11 850-2273 Bolt
12 850-2274 Front Turbine Cab
13 850-2227 UTR30 Turbine
13 850-2228 UTR70 Turbine
13-A 850-2277 Copper Washer (2)
14 850-2278 Bearing (2)
15 850-2279 Bearing Fixer (2)
16 850-2281 O-Ring (2)
17 850-2282 Washer (4)
18 850-2283 Bearing (2)
19 850-2284 Nut
REF. ITEM # DESCRIPTION (Qty.)
19-A 850-2286 Nut (2)
22-A 850-2287 O-Ring
22-B 850-2288 Air Inlet Body
23 850-2289 Rear Body
S-1 850-2290 Switch Body
S-3 850-2291 O-Ring
S-4 850-2292 O-Ring
S-5 850-2293 C-Ring
N-1 850-2294 On-O Switch
H-C 850-2295 Muer Pipe
H-A 850-2296 Air Hose Set
H-B 850-2297 Quick Joint
A850-2298 Hex Key
201 Hancock Ave. Bridgeport, CT 06605, USA |order toll free 800.243.4466
203.366.5400 |fax [phone] |email [e-mail] |www.gesswein.com
Parts List
UTR Turbo Lapper
Item# 850-2250 / 850-2245
#891-3621/0820
REF. ITEM # DESCRIPTION (Qty.)
1850-2255 Screw (2)
2850-2256 Tool Holder φ3+1mm (2)
3850-2257 Front Cover
3-A 850-2258 O-Ring
4850-2259 Bush
4-A 850-2261 O-Ring
4-B 850-2262 Fixed Ball (42)
5850-2263 Sliding Bush
5-A 850-2264 O-Ring (5)
5-B 850-2265 Washer
6850-2266 Red Front Body for UTR30
6850-2254 Blue Front Body for UTR70
6-A 850-2267 O-Ring
7850-2268 Main Shaft
REF. ITEM # DESCRIPTION (Qty.)
8850-2269 Screw (4)
9850-2271 Bearing
10 850-2272 Plastic Crank (2)
11 850-2273 Bolt
12 850-2274 Front Turbine Cab
13 850-2227 UTR30 Turbine
13 850-2228 UTR70 Turbine
13-A 850-2277 Copper Washer (2)
14 850-2278 Bearing (2)
15 850-2279 Bearing Fixer (2)
16 850-2281 O-Ring (2)
17 850-2282 Washer (4)
18 850-2283 Bearing (2)
19 850-2284 Nut
REF. ITEM # DESCRIPTION (Qty.)
19-A 850-2286 Nut (2)
22-A 850-2287 O-Ring
22-B 850-2288 Air Inlet Body
23 850-2289 Rear Body
S-1 850-2290 Switch Body
S-3 850-2291 O-Ring
S-4 850-2292 O-Ring
S-5 850-2293 C-Ring
N-1 850-2294 On-O Switch
H-C 850-2295 Muer Pipe
H-A 850-2296 Air Hose Set
H-B 850-2297 Quick Joint
A850-2298 Hex Key
201 Hancock Ave. Bridgeport, CT 06605, USA |order toll free 800.243.4466
203.366.5400 |fax [phone] |email [e-mail] |www.gesswein.com

6 7
Noise
• The operator must wear the ear protector when the noise level at this position exceeds
85dB(A). It is recommended that the operator wears the ear protector even if the noise
levels less than 85dB(A).
Vibration
• The operator is exposed to get the risk caused by vibrations. Frequent and prolonged
exposure to high intensive vibrations can cause disorders, especially to hands and
arms. Disorders caused by vibrations depend on many factors such as type of tool, type
of work, individual operator, and his physical conditions, working conditions, working
period, design of tool, temperature, etc. The operator must use the tool in accordance
with the total daily usage of ISO5349.
Mounting and Dismounting Abrasive Product
• When mounting and dismounting the abrasive product, make sure that the air line is not
connected to the tool or that the air line is shut off.
• Make sure that the dimensions of the abrasive product are compatible to the tool and
that the abrasive product fits the spindle of the tool.
Suggested gripping and over-hanging length
• The minimum gripping length of insert tool should be no less than 10mm.
Noise: The operator must wear the ear protector when the noise level at this position
exceeds 85dB(A). It is recommended that the operator wears the ear protector even if the
noise levels less than 85dB(A).
Vibration: The operator is exposed to get the risk caused by vibrations. Frequent and
prolonged exposure to high intensive vibrations can cause disorders, especially to hands
and arms. Disorders caused by vibrations depend on many factors such as type of tool,
type of work, individual operator, and his physical conditions, working conditions, working
period, design of tool, temperature, etc. The operator must use the tool in accordance with
the total daily usage of ISO5349.
Mounting and Dismounting Abrasive Product
When mounting and dismounting the abrasive product, make sure that the air line is not
connected to the tool or that the air line is shut off.
Make sure that the dimensions of the abrasive product are compatible to the tool and
that the abrasive product fits the spindle of the tool.
Suggested gripping and over-hanging length
The minimum gripping length of insert tool should be no less than 10mm.
Recommended overhanging length (mm)
ØD (mm) T (mm) 13mm 25mm 38mm
3.0 13 105,000rpm 64,000rpm 46,650rpm
6.0 13 60,000rpm 38,000rpm 26,250rpm
9.5 13 45,370rpm 28,500rpm 21,000rpm
9.5 25 26,250rpm 18,750rpm 14,250rpm
13 13 34,500rpm 22,500rpm 16,870rpm
13 25 20,620rpm 13,870rpm 10,120rpm
Checking Abrasive Product
yUse only the appointed abrasive products. Do not use worn out product.
yHandle and store the abrasive product with care in accordance to its manufacturer’s
instructions.
yIn an extremely high or low temperature, allows the tool and the abrasive products a
sufficient slow revolution.
yAfter mounting the abrasive product, run the tool at no load for about 3 minutes in a safe
place such as under a workbench or under an isolated place. Stop the operation
immediately when you feel an unusual vibration, hear unusual sound, notice unusual
change in speed and/or find any other irregularity.
Correct Working with Tool
yAlways consult the manufacturer before attempting to install and use the tool if there
should be any doubt about safety and appropriate use of tool or the abrasive product or
accessory.
yDo not modify the tool without permission or agreement from the manufacturer.
yNever use or continue to use the tool when you feel unusual vibration, hear unusual sound,
notice unusual changes in speed and find any other irregularities.
yThe tool should be used according to its capacity and only for its own purpose.
yDo no touch the abrasive product mounted on the tool during operation.
yBe aware of long hair, loose clothing, ties, etc. drawing in the tool.
yMake sure that sparks resulting from use are directed so that they do not hit persons,
flammables substances, etc.
yMake sure that the workpiece is properly supported or fastened so as to avoid kick back.
yBe aware that the tool will keep running-on for a while even after turning off. Do not touch
the abrasive tool until it came to completely stop. It is very dangerous to touch the
abrasive product soon after stopping operation.
yNever carry the tool by the hose or yank it to disconnect from power supply.
yDo not use the air hose for supporting, lifting or lowering the tool.
yMake sure that other people in the work area are at the safe distance.
yDo not abandon the tool during operation.
yDo not start the operation of the tool when it is laid down.
Keeping Tool After Use
The tool must be kept in a clean, dry place, so that it can be used properly easy and safely.
The storage of tools should be in a humidity controlled room. Avoid large temperature
fluctuations room.
Maintenance and Repairs
yThe tool must be properly maintained and tested by competent and trained personnel. At
any sign of malfunction or unusual behavior, the tool should be taken out of service for
examination and repair.
yIt is recommended to dismantle the tool for overhauling and cleaning periodically after 500
hours of operation or once every six months.
yWhen giving maintenance or repairs, make sure to disconnect the tool from the air line or
to shut off the air supply.
yBefore clearing the tool for use, make sure that all parts have been correctly assembled
with all fasteners tightened.
yCheck the speed or rpm of the tool without the abrasive product on the spindle after each
maintenance or repairing.
Disposal of Tool
The tool is made of steel, casting iron, brass, bronze casting, aluminum alloy, rubber and
plastic components or using some of those materials. When disposing of the tool, be sure not
to cause pollution to human beings and environment.
Remark:
L = gripping length
H = Overhanging length
T = Mounted Point length
ØD = Diameter of mounted point
Checking Abrasive Product
• Use only the appointed abrasive products. Do not use worn out product.
• Handle and store the abrasive product with care in accordance to its manufacturer’s
instructions.
• In an extremely high or low temperature, allows the tool and the abrasive products a
sufficient slow revolution.
• After mounting the abrasive product, run the tool at no load for about 3 minutes in a
safe place such as under a workbench or under an isolated place. Stop the operation
immediately when you feel an unusual vibration, hear unusual sound, notice unusual
change in speed and/or find any other irregularity.
Correct Working with Tool
• Always consult the manufacturer before attempting to install and use the tool if there
should be any doubt about safety and appropriate use of tool or the abrasive product or
accessory.
• Do not modify the tool without agreement from the manufacturer.
• Never use or continue to use the tool when you feel unusual vibration, hear unusual
sound, notice unusual changes in speed and find any other irregularities.
• The tool should be used according to its capacity and only for its own purpose.
• Do no touch the abrasive product mounted on the tool during operation.
• Be aware of long hair, loose clothing, ties, etc. drawing in the tool.
• Make sure that sparks resulting from use are directed so that they do not hit persons,
flammables substances, etc.
• Make sure that the workpiece is properly supported or fastened so as to avoid kick back.
• Be aware that the tool will keep running-on for a while even after turning off. Do not
touch the abrasive tool until it came to completely stop. It is very dangerous to touch the
abrasive product soon after stopping operation.
• Never carry the tool by the hose or yank it to disconnect from power supply.
• Do not use the air hose for supporting, lifting or lowering the tool.
• Make sure that other people in the work area are at the safe distance.
• Do not abandon the tool during operation.
• Do not start the operation of the tool when it is laid down.
Keeping Tool After Use
• The tool must be kept in a clean, dry place, so that it can be used properly easy and
safely. The storage of tools should be in a humidity controlled room.
• Avoid large temperature fluctuations room.
Maintenance and Repairs
• The tool must be properly maintained and tested by competent and trained personnel. At
any sign of malfunction or unusual behavior, the tool should be taken out of service for
examination and repair.
• It is recommended to dismantle the tool for overhauling and cleaning periodically after
500 hours of operation or once every six months.
• When giving maintenance or repairs, make sure to disconnect the tool from the air line or
to shut off the air supply.
• Before clearing the tool for use, make sure that all parts have been correctly assembled
with all fasteners tightened.
• Check the speed or rpm of the tool without the abrasive product on the spindle after
each maintenance or repairing.
Disposal of Tool
• The tool is made of steel, casting iron, brass, bronze casting, aluminum alloy, rubber
and plastic components or using some of those materials.
• When disposing of the tool, be sure not to cause pollution to human beings and envi-
ronment.

201 Hancock Ave. Bridgeport, CT 06605, USA |orders 800.243.4466
203.366.5400 |fax [phone] |email [email protected] |www.gesswein.com
Model
Max Speed
at no load Stroke
Air
Consumption Dimension Weight
UTR-30 30,000spm 0.3mm 0.05 m3/min Ø28 x 200mm 220g
UTR-70 28,000spm 0.7mm 0.05 m3/min Ø28 x 200mm 220g
UR-120 12,000spm 0.12mm 0.08 m3/min Ø30 x 208mm 370g
Model Air Pressure
Noise
at no load
Sound
Pressure Oil Regulation
All 6.2 bar 84dB(A) 76dB(A) 2~3 drop/hour
Standard Components:
1. Air Hose 2. Muffler 1. 3.2 x 13mm tool holder
2. Muffler
3. Adapter 4. Quick Joint 2. 6.3 x 13mm tool holder
4. Quick Joint
5. Hex Key
6. Ø3 &1mm slot tool holder
7. 1mm slot tool holder 8. Adjustable tool holder
6. Ø3 &1mm slot tool holder
8. Adjustable tool holder
Optional:
1. 3.2 x 13mm tool holder
2. 6.3 x 13mm tool holder
UTR-30
850-2250
UTR-70
850-2245
UR-120
850-2251
Technical Specifications
8913648/0820