Hitachi CHROMASTER 5160, Instruction Manual

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(3) Fill the beaker with the wash fluid (neutral detergent).
Immerse the entire valve holder assembly into the beaker.
(4) Fill the ultrasonic cleaner with water. Put the beaker
containing the valve holder assembly in it and perform
washing for about 10 minutes.
(5) Replace the detergent inside the beaker with the distilled
water and perform ultrasonic washing for 5 to 6 minutes.
Repeat this operation three times or more to remove the
detergent.
NOTE : The assembly structure of the check valve (suction and
discharge side) is shown below.
If the packings (B) are disengaged and the inner parts
come loose when washing, reassemble them using the
illustration as a guide.
Position the check valve so liquid enters from the valve
seat side. One side of the check valve seat is glossy
while the other side is not. When assembling the valve
seat, set it so that the glossy side will be oriented to the
ball contacting direction.
Valve holder assembly
Beaker
Ultrasonic cleaner
Direction of liquid flow
Check valve
(Discharge side)
Packing B
891-1364
Check valve
810-1325
Packing A
810-1345
Check valve
810-1325
Packing A
810-1345
Holder (IN)
893-1248
Check valve
(Suction side)
Glossy side
Ball
Valve chest
Valve seat
Holder (OUT)
893-1249
Direction of liquid flow
Valve seat
Valve chest
Glossy side
Ball