Wassermann Gobi-2 User manual

USER MANUAL
Gobi-2
Gobi-3
Gobi-4
Fine Blasting Unit
Gobi-2 (-3 / -4)
115 V

Dear customer,
Than you for choosing a product from the Wassermann range. Wassermann Dental-
Maschinen incorporates the highest standards of quality and the latest technology.
In order to enjoy maximum performance and years of trouble-free operation, please read
this user manual carefully before you connect this device and start wor , and operate the
device according to the recommended guidelines. The operation safety and the
functionality of this device can only be guaranteed if you follow both the general safety
guidelines and the applying laws to prevent accidents as well as the precautions given in
this user manual. We are not liable for any damages which occur due to inappropriate
usage or faulty operation of this device.
Ma e sure that anyone using this device has read and understood this user
manual.
Keep this user manual in a safe place where it can be referred to as required at
any time.
The unit complies with the relevant EU guidelines.
The unit is subject to the EU guidelines 2012/19/EU (WEEE Directive).
Company address:
Wassermann Dental-Maschinen GmbH
Rudorffweg 15-17
21031 Hamburg, Germany
Phone : [phone]/ -24 Fax.: [phone]
[email protected]
www.wassermann.hamburg
Erstellt: 14.07.17/ msc Version: 2 Auftrag: 190898
.

Contents
1 Features.............................................................................................................................4
2 Safety Symbols used in this Manual..................................................................................5
3 Safety Guidelines...............................................................................................................5
4 Responsibility for Operation or Damage............................................................................6
5 Application..........................................................................................................................6
6 Before Starting...................................................................................................................6
6.1 Transport...............................................................................................................................6
6.2 Installation............................................................................................................................. 7
6.3 Storage..................................................................................................................................7
7 Installation/ Start-up...........................................................................................................8
7.1 Assembly Follow-up Kit.......................................................................................................10
8 Operation.........................................................................................................................14
8.1 General Operating Instructions............................................................................................14
9 Troubleshooting...............................................................................................................15
10 Care and Maintenance...................................................................................................16
10.1 Cleaning............................................................................................................................16
10.2 Maintenance...................................................................................................................... 16
10.2.1 Grip-cuff Replacement.........................................................................................................17
10.2.2 Screen Replacement...........................................................................................................17
10.2.3 Conducting Hose Replacement...........................................................................................17
10.2.4 Lamp Replacement..............................................................................................................18
10.2.5 Nozzle Replacement............................................................................................................18
10.2.6 Protection Filter Replacement..............................................................................................19
10.2.7 Water Separator...................................................................................................................19
10.3 Warranty............................................................................................................................ 20
10.4 Scope of Delivery/ Accessories (115 V version)................................................................20
10.5 Spare Parts........................................................................................................................21
10.6 Service Hotline [phone]/ -24.....................................................................21
10.7 Repairs..............................................................................................................................21
11 Technical Data...............................................................................................................22
12 Disposing of the Unit......................................................................................................22
12.1 Information on Disposal for Countries within the EU..........................................................22
13 EU Declaration of Conformity........................................................................................23

1 Features
This precision fine blasting unit of the Wassermann-brand offers you the highest quality
and most advanced technology.
This 2-chamber-unit is perfect for blasting, roughing as well as blasting with specially fused
alumina. The entire system is continiously under pressure and is therefore always ready
for use. The relation between air and the blasting medium is set at the factory. It is
determined by the size of the drillings. However, the discharge velocity can be varied by
the built-in pressure reducer. The discharge velocity determines the outflowing amount of
blasting media (while the relation is ept optimal and constant).
Even when switching on the unit again, you can use the quic -start- and quic -stop-
function to begin blasting immediately. This is possible due to the crushing valve at the
conducting hose.
This unit is equipped with a soc et (power consumtion: max 8 A).
■ 115 V version
■ reliable and reasonably priced fine blasting units with 2 to 4 chambers
■ quic foot-controlled start/stop function
■ precise wor ing pressure of 1–6 bar with pressure gauge control
■ optimum illumination, protected fluorescent lamp
■ special, particularly durable hoses
■ convenient colour coding system
■ comfortably to handle with ergonomically shaped handpieces
■ hygienic changeable sleeves
■ rapid ventilation of the blasting material containers for rapid re-filling and changing of
blasting material
■ possibility to connect to suction unit
■ long durability, high flexibility
■ specially coated protection screen for ideal visibility
4

2 Sa ety Symbols used in this Manual
Warning!
This is a warning of ris situations and dangers.
Failure to observe this warning could be life-threatening. These warnings has to
be observed.
In ormation!
This symbol draws your attention to specific features that has to be observed.
3 Sa ety Guidelines
Configuring and operating this equipment requires precise knowledge and observance
of the instructions in this user manual. The equipment is designed only for its intended
application.
WARNING:
Servicing and repairs should be carried out only by authorised specialists.
Disconnect the power plug before starting any maintenance wor .
The unit is designed to operate on 110-120 V / 50/60 Hz.
Ma e sure that the equipment is connected to the correct power source.
Working is only allowed with the blasting chambers closed.
Please wear sa ety goggles!
WARNING: Never connect to an oxygen bottle.
Risk o dust explosion.
5

4 Responsibility or Operation or Damage
The responsibility for operating the device lies exclusively with the owner or user if said
device is incorrectly serviced, maintained or altered by persons not employed by an
authorised dealer or if the device is used in a manner contrary to its specified purpose.
The unit has to be maintained and operated in accordance with this user manual.
Wassermann Dental-Maschinen GmbH is not responsible for damage arising from the
nonobservance of these instructions.
Warranty and responsibility provisions contained in the sales and supply conditions of
Wassermann Dental-Maschinen GmbH are not extended by these instructions.
5 Application
This 2-chamber-blasting unit is designed for blasting, roughing as well as blasting with
specially fused alumina.
Only use the device for this type of application.
6 Be ore Starting
6.1 Transport
Before transporting the unit, ensure that it has been unplugged from the power soc et.
Ma e sure that it is pac ed correctly in order to avoid accidental damage.
Be sure to chec for any transport damage when unpac ing the goods. Note down
any damage if found.
6

6.2 Installation
•Open the box, remove the pac ing materials, and carefully lift out the device and
accessories.
•Avoid lifting the unit on the mounting brac et of the air control unit because it could
bend or brea .
•Avoid lifting the unit on the additional tan s because they are only suspended.
There is a ris that you brea the additional tan s and the unit is dropped.
•The device has to stand horizontally on a steady and even surface.
•Chec the included accessories.
Install the device in a place where it will not bloc the wor ing area and the
functionality (ta e the dimensions into account).
Do not install the unit outdoors or in places without proper ventilation.
Before start-up, be sure the device reaches room temperature.
6.3 Storage
The unit location is very important when it comes to wor place safety, even if it is only to
be set up there for a short period. The room should be dry, well ventilated and vibration-
free. An even temperature and wooden supports also help. The unit should not be stored
or set up outdoors. If the unit is to be stored for an extended period, protect it from
moisture and dust.
7

7 Installation/ Start-up
Be ore starting the unit, connect up the following:
•Prepare a compressed air connection.
•Furthermore an external dust-extractor should be connected.
•The connectors are accessible from the bac .
•Finally, insert the power plug into the soc et, ma ing sure that the mains and the
unit operate on the same voltage.
Be ore using the unit, let it stand with open chambers until it has reached
room temperature.
•It is absolutely necessary to switch the unit off before filling.
•The chambers can first be screwed on when they are completely pressureless.
Press the red nob of the screwed-on cover at the right side until no outflowing air
can be heard.
All chambers are vented by pressing the according air vent knob.
•The chamber at the right (red) will always be filled with 110-250 my material.
•The chamber at the left (blue) will always be filled with 50-110 my material.
•If your unit has additional tan s you can individually choose the blasting material. If
required please as for add-on it.
•The chambers are only allowed to be filled up to 4 cm from the upper chamber
edge. The filling quantity shall not exceed the inside of the container located mar .
8

Be ore setting on the containers you have to assure that the threads and
sealing sur aces are ree o blasting media grains.
•Screw on the screwed-on cover properly in accordance with the colour indicator.
When all chambers have been screwed on the unit is ready for use and can be
switched on.
•Insert the power plug firmly into the power outlet (110-120 V / 50/60 Hz).
•Switch on the main switch (green toggle switch).
•Set the pressure reducer to wor ing pressure. There must be no hissing noise.
Otherwise, please retighten the screwed-on cover by hand.
9

7.1 Assembly Follow-up Kit
Please carry out the following preparatory measures:
•Before you start the assembly chec that the follow-up it has been delivered
complete.
•Unplug the Gobi-2 from its soc et so that the mains supply is disconnected.
•Remove your pressurised air connection to a safe distance and ma e sure that the
Gobi-2 is no longer “under pressure”.
•In the wor room remove the plug for the lead through of the steel stylus: left for the
left-hand add-on tan (yellow); right for the right-hand add-on tan (green). Figure 1
•On the left-hand add-on tan loosen the lower screw of the electro-cover.
Only loosen, do not remove! Figure 2
10
Plug, left
Plug, right
Only loose the
screw, do not
remove
Fig. 2
Fig. 1