joke FX 3.0 User manual

Instruction Manual
Compressed-air grinder FX 3.0
Order no. 0 750 705

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List of contents
1 List of contents Page 02
2 Tips on using the manual Page 02
3 Safety instructions Page 03
4 Warranty / Identification Page 04
5 Operation / use /maintenance unit Page 05
6 Technical data Page 07
7 Troubleshooting Page 07
8 Care and maintenance Page 08
9 Telefax form Page 09
Tips on using the manual
We congratulate you on purchasing this device.
This manual has been written for the device user to ensure a problem-free operation, care and
maintenance. Important instructions and information concerning safety and operational reliability
have been highlighted.
The symbols used in the manual have the following meanings:
Working and operating processes which must be observed to the letter to exclude any risk to
persons.
The illustrations and diagrams are numbered in sequence within each chapter. Some of these
illustrations have keys. References to illustrations within the text e. g. (5.1/2) have the following
meaning:
5.1 = Figure 5.1
2 = Position 2 in the key to the figure.
Our service department is available at all times in case of technical problems not addressed in
this manual:
Telephone [phone] / 8 39 - 0
Telefax +49 (0) 22 04 / 8 39 - 60
Internet www.joke.de
Working and operating processes which must be observed to the letter to avoid any damage to
the device.
Technical information to which the device operator must give special attention.

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3Safety instructions
This device has been built according to the latest technical standards and generally accepted
safety regulations. Nevertheless, it can constitute danger to life and limb for operator or third
parties and a hazard to the device itself or other equipment during use.
1. Only use the device if in perfect working order and for its intended purpose. You must
always pay attention to the instruction manual and safety instructions therein and be
aware of the risks! Repair any faults which could aect the device’s safety immediately
by yourself or have these repaired.
The device is designed exclusively for grinding, polishing and deburring with the tools
listed and approved in the joke catalogue. Any other use will be deemed to be contrary
to its intended purpose. The manufacturer cannot be held liable for any resulting dama-
ges. The risk is borne solely by the user. Correct use also includes compliance with the
instruction manual and an observation of the care and maintenance conditions. Keep
the instruction manual handy at the device’s place of use.
2. Pay attention to and observe generally applicable statutory and otherwise binding regu-
lations relating to accident prevention and environmental protection in addition to the
information provided in the instruction manual!
3. All personnel commissioned to work on or with the device must have read this instruc-
tion manual, and particularly the safety instructions chapter, before starting work. This
applies especially for personnel who only work with the device occasionally.
4. Stop the device immediately should you notice changes to the device or its operating
behaviour that are relevant to its safety. Have these remedied before restarting work.
5. Do not carry out any modifications, additions or conversions to the device! This also
applies to the installation and adjustment of safety equipment.
6. Spare parts must meet the technical requirements specified by the manufacturer. This
can only be guaranteed with original JOKE spare parts.
7. Wear safety goggles, protective gloves and hearing protection when working with the
handpiece. If noise generation (sound pressure level) at the workplace exceeds 85 dB
(A), sound protection and hearing protection measures for the user are required.
8. Personnel undergoing training or in a general apprenticeship should only be allowed to
work with the machine under the constant supervision of an experienced operator!
9. Restrain from any type of work that could jeopardise your safety.
10. Never aim the device at a person. 
11. The device may only be used if all protective and safety equipment is in place and in
proper working order.
12. Long hair or loose clothing may become entangled or drawn into the
 compressed-air grinder.
13. Do not leave the device unattended when switched on!

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15. The compressed-air grinder must be switched o before clamping a new tool
 and any adjustment. In case of malfunctions immediately shut down and safeguard
   the device! Faults must be remedied at once.
16. Stop and secure the device immediately in the event of malfunctions! Faults must be
remedied at once.
17. The construction of the compressed-air grinding machine is designed for an air pressu-
re of 5 bars. If the device is operated with a higher air pressure, undesirable vibrations
may occur that do not necessarily damage the device, but place stress on the user. The
air pressure should not exceed 5 bars; otherwise damage can no longer be ruled out.
18. Use a pressure control valve that can be adjusted to 5 bars.
19. Check all lines for condensation water and contamination before starting work. The
compressed air should be dry and clean. It is advisable to install a filter upstream.
20. The compressed-air grinder is not to be used near explosive substances/gases.
21. The device is not insulated against contact with electric current.
22. Accumulated compressed air may result in damage to the compressed-air grinder.
23. Always keep the compressed-air grinder such that grinding sparks cannot cause any
damage.
24. Watch out with the pulsating pressure line.
4Warranty
joke Technology GmbH warrants the correct manufacture of every joke product which is deli-
vered in accordance with the terms of contract and delivery.
This warranty does not cover damages caused by normal wear and tear, incorrect handling,
negligent use, the fitting of non-original spare parts, inadequate care and/or a failure to comply
with this technical manual.
The device may only be used by appropriately trained personnel. If it is not, all warranty claims
will be forfeited according to the terms of delivery.
Device identification
The series number can be found on the handle sleeve.

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5Operation / use /maintenance unit
Notes on operation
• The recommended air pressure for operating the compressed-air grinder is 5 bars. An increa-
sed air pressure may result in damage to the compressed-air grinder.
• The spindle must be treated particularly carefully when immobile. Under no circumstances
must the spindle be knocked, since parts which are important for function will be damaged.
The spindle must be treated particularly carefully when immobile. Under no circumstances
must the spindle be knocked, since the high precision bearings which are important for func-
tion will be damaged.
• Pay attention to the permissible cutting speeds and the tool manufacturer’s guidelines before
using the tools.
• Check that the tool is firmly seated and safely tighten.
Check the maintenance unit regularly. If condensation water and dirt are present, drain the con-
densation water and clean the filter (refer to section on Care/Maintenance).
Wear protective goggles and hearing protection!
Pay attention to proper handling of the device. Do not exert any pressure on the tools. The tools
should only be guided over the surfaces.
Correct clamping of the tools is indispensable.
Connecting the compressed-air grinder
1. Connect the air supply line of the pneumatic compressed-air grinder to the maintenance
unit.
2. Set a pressure of max. 5 bars on the maintenance unit.
The handpiece is maintenance-free.
3. Insert the tool in the collet and tighten with the chuck key and locking pin supplied.
4. The device can be switched on and o using the rotary controller.
Oiled compressed air must be used in order to guarantee optimum function.
Tool receptacles
• The compressed-air grinder is only intended for manual use.
• The tool receptacle is designed such that tools with a round shaft Ø of 3mm can be received
by the collets.
See the current joke catalogue for usable, permissible tools.

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Compressed-air maintenance unit and air connection
The compressed-air required in order to drive the compressed-air grinder must be supplied
through a maintenance unit.
The maintenance unit must consist of the following functional units:
water and dirt separator, pressure gauge, oil mister (micromister)
Optimum function of the compressed-air grinder is guaranteed by using
the joke Oiljet maintenance unit (order no. 0 004 050). Further accessories
and the installation package can be found in the current joke catalogue.
The joke Oiljet maintenance unit consists of:
• Manual water separator
• Filter 25 μm
• Pressure reducer
• Micromister
• Pressure gauge
• and wall fixing.
Figure 5.1 joke Oiljet maintenance unit (Order no. 0 004 050)
See the current joke catalogue for further accessories and the installation package.
Setting up and connecting the maintenance unit
1. Check on the maintenance unit whether
• the condensation-water bleed screw is closed; closing is performed by turning clockwise,
• the pressure controller screw is open; opening is performed by turning anticlockwise
2. Fill the oil container up to the mark with joke high performance lubricant X 73012.
The oil level must not rise higher than the bae plate of the micro oiler.
Functional principle of the oil mister
The micro oil mister guarantees an even, rapid and precisely dispensable lubrication of the hand
grinder.
The oil mister is adjusted to approx. 1-2 drops per minute. Only a fraction of the falling drops are
misted and partly flow back into the reservoir.
Owing to the special air supply, it is possible to reduce the size of the oil particles. The latter can
be transported over long distances as micromist in the air flow. They are hardly deposited. All
surfaces with which they come into contact are intensively and very uniformly wetted. An even,
stable oil film forms immediately at the bearing sites, the thickness of which can be rapidly and
precisely adjusted.
3. Connect the line of the external air supply to the maintenance unit.
Take care that the air flows through the housing in the direction indicated by the arrow.

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Technical data
Compressed-air grinder FX 3.0
Speed max. 65,000 1/min
Air pressure: max. 5 bars
Air consumption 90 litres / min
Exhaust air backwards
Noise level: < 75 dB (A)
Dimensions Ø 22.5 x 150 mm
Weight 78 g
Lubrication continuously by oil mist
Scope of supply:
Collet Ø 3.0 mm, wrench, air tube 1.5 m, ¼“ connecting sleeve including filter
joke Oiljet maintenance unit
max. volumetric flow: 1200 l/min
max. input pressure max. 16 bars
Adjustment range 0-12 bars
Air connection 1/4“
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Troubleshooting
Malfunction Possible cause Remedy
Tool does not work Compressed-air grinder
not switched on at the
rotary controller.
Turn rotary controller to "ON".
Hose line kinked. Eliminate the kink.
Air pressure controller on
the maintenance unit not
opened.
Set air pressure controller to max. 5 bars.
Maintenance unit faulty. Change maintenance unit.
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Care
Clean the compressed-air grinder FX 3.0 if necessary with a soft brush/paintbrush or a dry cloth.
Store the machine in a clean, dry place.
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Maintenance
The compressed-air grinder is maintenance free.
1. Render the maintenance unit free of pressure. We recommend
a ball cock from the current joke catalogue, which is to be mounted
 laterally.
2. The condensate must be bled o through the drain valve before the maximum 
filling level is reached. The bleed screw is to be turned clockwise (~90°) and pushed
upwards.
3. Screw out the air filter and change or clean.
Take care that the filter frame and the loose seal are reinstalled with their position
unchanged.
4. Screw in the condensate container again and perform a functional test. After emptying
and changing the filter, loosen the bleed screw and rotate anticlockwise (~90°).
5. Supply the maintenance unit with pressure.
Emptying condensate from the air filter of the maintenance unit:
Figure 8.1 joke Oiljet maintenance unit
(Order no. 0 004 050)
Filter
Condensation-water container
Water separator with
condensation-water bleed screw
Take care that the filter frame and the loose seal are reinstalled with their position unchanged

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Compressed-air grinder FX 3.0 Order no. 0 007 705 
joke Oiljet maintenance unit Order no. 0 004 050 
joke Oiljet accessories
Ball cock ¼“ , 1 x ¼“ internal and external thread respectively Order no. 0 004 053 
Double nipple ¼“ Order no. 1 722 246 
Lubricant
High-performance lubricant X 73012, 1.0 l itre Order no. 0 580 601 
High-performance lubricant X 73012, 1.0 litre Order no. 0 580 602 
High-performance lubricant X 73012, 5.0 litres Order no. 0 580 603 
Date Signature
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To
joke Technology GmbH
Service Department
Fax [phone] / 8 39-60
Sender:
Company
Name/Department
Customer no.
Street
Postcode town/city
Please send us the spare parts drawing with the spare parts list for the following equipment:
as a printout (see address above),
by Fax,
as a pdf file to my e-mail address
_____________________________

Surface Technology
Oberflächentechnik
joke Technology GmbH
Asselborner Weg 14 -16
D-51429 Bergisch Gladbach
Tel. [phone] / 8 39-0
Fax [phone] / 8 39-60
Email [email protected]
Web www.joke.de
© Copyright joke Technology GmbH • July 2012 • Subject to changes due to technical progress, inaccuracies
and printing errors • Reprinting, even in part, only subject to prior written consent.
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