YAMADA KGK-400 Series, Инструкция

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Air Inlet
Connect an appropriate air valve such as 3 port solenoid valve or mechanical valve.
CAUTION: Air should be supplied through an air filter, lubricator, and air regulator. Set the air pressure
between 0.4MPa to 0.5MPa.
WARNING: Do not set the air pressure over 0.7MPa.
4-4 Precaution for initial use
When you use the metering valve for the first time including the first use after repair, be sure to completely
remove trapped air from a material supply pump, hose, pipe, and metering valve.
Disconnect a pipe attached on the material outlet and run the metering valve to remove trapped air. Repeat
this procedure until all air is removed completely. Confirm that the valve is securely closed BEFORE
reconnecting a pipe to the outlet.
PRECAUTION FOR USE
- Be sure to shut off the air supply to a supply pump and set the material pressure (primary pressure) to
zero. Leaving a metering valve under pressure will be a cause of material leak or some other problem.
- Once a metered shot is dispensed, be sure to put the valve back to the standby condition.
- Avoid inclusion of air in material as much as possible.
Trapped air in material will be compressed through a pump, pipe, hose, and metering valve and expand
when material is dispensed. As a result, the metering valve will have difficulty stopping discharge and
thus it may seem to be leaking. Also, each shot will be variable in amount.
Furthermore, material will gush out of the outlet and splatter around.
Be sure to release air completely when using the product for the first time or after replacing a metering
cylinder.
- Do not use material which contains dirt and dust. Seal parts will be damaged, causing a material leak.
- In such problems that material continuously flows out from the outlet or a shot is variable in amount, it is
necessary to figure out whether a defect is caused by malfunction of the valve or some other equipment.
Carry out an operation test on your valve independently and investigate the condition of the material
outlet.
- Due to long term use, material which couldn’t be stripped off by a seal builds up little by little. This is not
always abrasion of a seal part. It is important to wipe off seal parts after use or periodically to extend the
life of these parts.