1
Three studs
G3/4(F) material
outlet (with check
valve)
Lower pump
Silencer
Rc3/8 air inlet
Mounting plate
Plunger connection
Plunger
Air motor
Bleeder valve
Material inlet
Rc3/4 material
outlet
Three studs
Lower pump
Solvent cup
Silencer
Eye nut
Nylon tube
Nylon tube
1. Part Names
1.1 Part names
Fig. 1 shows the names of each part used in the instructions in this manual. Use them as a reference.
1.2 Contents of a package
The unit is packed in a wooden box.
Please make sure no damage during shipment and no missing accessories after unpacking as soon as possible.
Please make sure no loose screws, piping connections, and fastener components.
Please retighten if any screws, piping connections, and fastener components are loose.
(The nylon tube and the silencer are detached from the pump in the packaging due to the shipping conditions.)
2. Operating principle
Yamada's air-powered pumps employ reciprocating motion system driven by
compressed air.
It is comprised of two sections as illustrated at right; air motor section which
drives the pump and lower pump section which pump up material.
When compressed air, generated by the compressor, is fed into the air motor, the
air switching mechanism built in the air piston actuates vertical reciprocating
motions. The connecting rod, joining the air piston inside the air motor and the
piston inside the lower pump, transmits the movement to the piston inside the
lower pump, giving vertical reciprocating strokes.
Vertical reciprocating motions, generated by the lower pumps, feed material into
the lower pump. Then, it is pumped out of the discharge port.
Fig. 2
Fig. 1
Part names
＜
140 Type
＞
＜
125 Type
＞
