Condec PIN7010 - Manual (Page 12)

8 PIN7000/PIN7010 Operation and Maintenance Manual
1. Secure the valve body by its center portion, in a bench vise, with the valve knob pointing upward.
2. Using the .061" hex wrench, loosen and remove the knob insert (6) and the nylon washer (14) from the
valve stem (3).
3. Using the .050" hex wrench, loosen and remove the set screw (13) and lock nut (12).
4. Loosen the 3/4" locknut (11) on the valve threaded needle housings (2).
5. Using the needle housing socket (65580) and socket wrench, loosen and remove the needle/housing
assembly (2, 3).
6. Remove the valve stem seat (10) and valve needle seat (5) using the needle-nose pliers.
7. Remove the inner and outer O-rings (19, 18) and back-up rings (7, 9) from the valve stem seats and wash
all parts in solvent (de-natured alcohol).
8. To remove valve seat (4) from valve, blow compressed air through the inlet and outlet fittings. If this is
unsuccessful, the center hole will have to be drilled and a tap used to extract the seat (steps 9-12).
9. Using the hand drill with the No. 43 bit, carefully drill out the seat hole, ensuring that the drill does not
touch the hole in the valve body housing directly beneath the seat.
10. Blow out any chips from the seat area using compressed air.
11. While holding the 4-40 tap steady and perpendicular to the seat, slowly turn until the tap starts to engage
the seat.
12. When the tap has engaged into the seat, use a small hammer and gently knock upward against the tap
handle to extract the seat.
13. After the seat has been removed, blow any remaining chips from the seat area.
3.2.4 MPV Valve , Valve Seat Installation
Tools required: Needle-nose pliers
Tube fluorinated Krytox grease (PN 55593)
No. 43 drill
A/R solvent (de-natured alcohol)
Hex wrench (.050")
Hex wrench (.061")
Torque wrench
Socket wrench
3/4" Socket
Needle housing socket (PN 65580)
NOTE: See Table 3-2 on page 19 and Figure 3-2 on page 22 for additional parts information.
1. Install a new seat (4) by placing it into the seat well with the needle-nose pliers. Ensure that the seat is
centered within the cavity and gently tap it with a blunt end of a drill bit to install.
2. Install the valve needle seat (5) with the smaller diameter end facing outward.
3. Install new O-rings (19, 18) and back-up rings (7, 9) inside and outside of the valve needle seat. Coat all
O-rings and back-up rings with fluorinated Krytox grease before installation. Make sure that the rings
are installed in the proper order.
4. Install the valve stem seat (10) by grasping the small diameter end with the needle-nose pliers and
positioning in the valve cavity, then gently pushing with the blunt end of a drill bit.
5. Disassemble the valve needle (3) from its housing (2) and check for any burrs or dirt on the threads
which might interfere with smooth operation.
6. Clean both the needle (3) and housing (2) in solvent, dry the parts and apply a small amount of
fluorinated Krytox grease to the needle threads before reassembly.
7. Assemble the Valve Needle (3) into the valve needle housing (2) and turn it until it stops.
8. Reinstall the needle/housing assembly into the valve cavity until finger tight.
9. Mount the valve body (1) in a vise. Torque the needle/housing assembly to 325 in-lb. using the needle
housing socket (PN 65580) and torque wrench.
10. Install the housing lock nut (11) onto the housing (2) and tighten until snug with the 3/4" socket.
11. Using the .050" hex wrench, install and tighten the lock nut (12) and set screw (13).
12. Install the nylon washer (14) and knob insert (6) over the valve needle (3) shaft, align the set screws (17)
with the indents and tighten with the .061" hex wrench.