10
Assembly Instructions
General
•
All O-rings must be lubricated with a small amount of silicone grease.
Note: PVA offers a 2.5cc silicon o-ring lubrication kit; Part#: B62-2048
.
•
A small amount of removable thread locker should be applied to the set screw (16).
•
Assemble the air section and fluid section separately prior to connecting the two pieces.
Air Section
•
Mount one 007 Buna O-ring (26) on the end (F) of the micrometer (10) and slide it to the threads.
•
Thread the micrometer (10) into the upper air body (2) hand tight.
•
Holding the collar (E) of the micrometer (10) turn the dial (C) counter-clockwise until the number
5 can be seen on the midsection (D).
•
Using soft tip pliers grab the midsection (D) section of the micrometer (10) and turn clockwise to
snug it onto the upper air body (2).
•
Thread the set screw (11) into the upper air body (2) and tighten with a 1/16” Hex Key.
•
Mount one 014 Buna O-ring (28) on the end of the upper air body (2).
•
Drop the needle (1) into the piston (21) and assemble with the set screw (16) using an adjustable
wrench and 5/64" Hex key to tighten.
•
Mount the other 014 Buna O-ring (28) onto the piston (21).
•
Apply a small amount of silicone grease to the inside of the lower air body (20) then drop in the
piston and needle assembly.
•
Mount the 004 Buna O-ring (23) on the end of the needle (1) and slide it down into the groove in
the end of the lower air body (20).
•
Slide the end cap (19) onto the needle up to the lower air body (20), place the spring (9) on top of
the piston (21), and assemble the two air bodies using two machine screws (14) tightening with a
3/32" Hex key.
Note: Be sure the air holes are lined up on the same face and will align with the fluid inlet check valve
housing (5).
Fluid Section
•
Place the 004 Kalrez
®
O-ring (24) into the groove of the packing (4).
•
Insert the packing (4) into the fluid section (7), cone side first with the o-ring (24) facing outward,
and screw in the packing nut (3) but leave finger tight until assembled with the air section.
•
Mount the 006 Kalrez
®
O-ring (25) on the seat (8) and push the seat into the bottom of the fluid
section (7), cone side first. When inserting the seat, work the O-ring into the fluid body with finger
to prevent shearing of the edge of the O-ring.