YATO YT-2346, Manual, Page: 7 / 40

7
O R I G I N A L I N S T R U C T I O N
EN
dangers caused by the energy accumulated from compressed air.
Since there is a possibility of accumulation of electrostatic charges, it is necessary to realise measurements in order to determine
whether it is required to ground the tool or to use surfaces and / or compressed air systems dissipating electric charges. Measure-
ments and assembly of such systems must be carried out by properly quali fi ed personnel.
Do not ever direct a stream of lubricant towards a source of heat or fi re, since this might lead to a fi re.
OPERATING INSTRUCTIONS
Commencement of work
Tighten the nozzle using an open-ended spanner.
Check the connections of the compressed air system for tightness.
Blow the air supply hose before it is connected to the installation.
Before the spray gun is operated, make sure it has been cleaned and maintained properly.
Make sure the coating material tank has been connected in a manner which guarantees the required tightness.
Filling the coating material dispensers
Attention! Before you proceed to fi ll the coating material dispenser, it is required do disconnect the tool from the pneumatic
system.
Attention! Before you use a given coating material, make sure it may be used with pneumatic guns.
Attention! Before you proceed to fi ll the coating material dispenser, it is required to clean the dispenser and the tool thoroughly
from any residues of the previously used materials. Di ff erent coating materials may react with each other, implying risks for health
and causing damage to the tool.
Attention! It is prohibited to use other substances than liquid sprayed materials. Particularly it is prohibited to use substances of a
high density, materials containing abrasives such as red lead oxide, coarse materials, as well as caustic and base materials.
Open the lid of the dispenser, fi ll it with the coating material and then close the lid again. Do not fi ll the dispenser up to the edge,
but leave approximately 1 cm of free space from the upper edge of the dispenser. In case of guns with an upper dispenser, before
fi lling the dispenser must be installed on the gun tightly.
In case of guns with an upper dispenser, the dispenser is equipped with a purging air valve. In case the coating material is not fed
to the gun in a uniform manner, the valve must be opened. While the valve is open, the gun must not be inclined excessively, so
as to avoid leakage of the coating material through the valve.
Adjustment of the spray jet
The width and shape of the spray jet may be modi fi ed turning the air nozzle. The shape of the jet may be fl exibly adjusted from
fl at to round, depending on speci fi c requirements. The coating material quantity adjustment knob may be used to determine the
quantity of the coating material which is supplied to the air jet. The spray adjustment knob serves to regulate the intensity of the
mixture of air and the coating material. It is recommended to adjust the mixture jet so as to obtain possibly minute particles of the
coating material, which will guarantee a better spread of the coating material on the surface.
Work with the spray gun
Operating the spray gun, maintain a distance between the spray gun nozzle mouth and the coated surface within the range of
10 to 15 cm. Try to lead the spray gun nozzle mouth perpendicularly to the coated surface. Avoid curved movements, since they
will cause uneven spreading of the coating material. It is recommended to apply several thin layers rather than a single thick
coating.
Air fl ow adjustment
Depending on the type of the coating material, adjust the proper quantity of the compressed air turning the air pressure adjust-
ment knob.
Replacement of the nozzle
Make sure the whole nozzle assembly is replaced. The nozzle assembly consists of a coating material nozzle, a nozzle needle
and an air nozzle.
Nozzle needle sealing
During work, check the nozzle needle sealing for tightness. If the sealing is signi fi cantly worn-out, it must be replaced during a
periodical inspection of the spray gun, using an open-ended spanned to disassembly the sealing unit.
CLEANING AND MAINTENANCE
The coating material outlet is blocked
In case the sprayed substance stops coming out of the gun outlet, the nozzle may be blocked. Empty the coating material dis-
penser. Then remove the ring fi xing the nozzle to the gun, fi nd the blocked area and clean it not using sharp metal tools which