Operation
14
313536U
Operation
Theory of Operation
Circulation
Hydraulic pressure extends the piston rod to the circula-
tion position. Material enters the material pressure line
and is sent to the material return line.
When the piston rod is extended to this position, it
removes gelled material from the nose assembly.
Dispense
Hydraulic pressure retracts the piston rod to the dis-
pense position. Material enters the A and B material
pressure lines and mixes in the mixing chamber.
When the piston rod is in this position, it blocks material
flow from entering the material return line.
F
IG
. 14: Circulation
Key:
A
A Pressure Line
B
A Return Line
C
B Return Line
D
B Pressure Line
E
Hydraulic Open Line
F
Hydraulic Close Line
G
Piston Rod
H
Hydraulic Piston
F
D
C
B
A
E
G
H
F
IG
. 15: Dispense
F
D
C
B
A
E
Key:
A
A Pressure Line
B
A Return Line
C
B Return Line
D
B Pressure Line
E
Hydraulic Open Line
F
Hydraulic Close Line
G
Piston Rod
H
Hydraulic Piston
H
G
