IWAKI PUMPS Hicera V Series, Instruction Manual, Page: 25 / 32

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■ Assembly (V-15)
Follow the procedure below to put together the pump head.
1. Insert the plunger ass'y (1) into the pump frame (12 ). And then slide the seal stopper (10) down onto the
plunger ass'y as far as it will go.
2. Slide two lip seals (11) down onto the plunger ass'y as far as they will go, rotating each of them slowly, to
align them back to back.
Do not bend or scratch the lip seals. Degrease and clean the plunger with benzine or thinner after this
process.
3. Hold the plunger pin and pass the plunger (1) through the cylinder (2), rotating it from side to side. And
then fit the cylinder into the pump head (3), making sure the cylinder flow paths lie directory beneath those
of the pump head.
4. Fix the pump head with the pump frame (12) with the pumphead mounting screws.
5. Fit the joint seals (7) into the tube joints (6) and then screw these joints into the pump head (3) to softly
hold the cylinder.
6. Place the head seal (5) on the top of the cylinder, on its concave side, and fasten the head cover (4) to the
pump head (3) by 15kgf•cm .
Do not tighten the head cover too much, or it deforms the cylinder and prevent the rotation of the plunger.
7. Tighten the tube joints (6) to the pump head by 15kgf•cm .
Do not tighten the tube joints too much, or it deforms the cylinder and prevent the rotation of the plunger.
8. Pull out the plunger end from the pump head and fit the plunger pin into the spherical bearing in the drive
joint ass'y (14).
Adjust the direction of the spherical bearing as necessary. Always grease the plunger pin to keep good
lubrication performance, or seizing or noise may result.
9. Place the pump head onto the pump base (18). Fix the pump frame (12) with the pump frame mounting
frame (23) plus the nut (20 ) and the hex socket head bolt (22). Do not fasten the bolt too much before
adjusting the pump head angle to a specified point. The range of the pump head angle is in between 0
and 20
º .
Maintenance