3 mpv valve, valve seat removal – Condec PIN7010 User Manual
Page 11

Maintenance & Service
7
2. Gently place panel/chassis assembly into enclosure. Ensure that the wire harnesses do not catch and
snag.
3. Align mounting holes and install 14 screws (PN 14862) from top, bottom, and sides that secure the
panel/chassis assembly to the enclosure. Also, align mounting holes and install the three screws (PN
14862) from the rear of unit that will secure the enclosure to the TEST PORT/AC INPUT/INPUT PORT
panel.
3.2.2
Accumulator, Intensifier & MPV Valves (PN 65076) Removal
Tools required:
Phillips screwdriver
11/32" Wrench or nutdriver
.061" Hex wrench
7/16" Open end wrench
NOTE: See Table 3-2 on page 19 and Figure 3-2 on page 22 for additional MPV valve
parts information. See Table 3-3
on page 21 and Figure 3-2 on page 22 for additional intensifier
parts information.
1. Vent the system to atmosphere before attempting to work on the unit. Disconnect the power cord from
the power source.
2. Remove front panel from its enclosure as described in Section 3.2.1 and carefully set on a bench top.
3. Using a 7/16" wrench, remove the following tubing sections:
•Accumulator to intensifier outlet (1/4" dia.)
•Intensifier assembly to solenoid tee fitting (1/4" dia.)
•Vent valve tee to output pressure gauge (1/8" dia.)
•PIN7010 only: Pressure valve tee to test port fitting
•Accumulator to pressure valve fitting (1/8" dia.)
•Accumulator to accumulator pressure gauge (1/8" dia.)
•Pressure valve tee to vent valve tee (1/8" dia.)
4. Loosen and remove the six screws that secure the two clamps that hold the intensifier and accumulator.
5. Remove the accumulator by sliding out.
6. Loosen the fitting nut at the intensifier end of the long 1/4" diameter tubing section that connects the
solenoid valve to the intensifier. There is no need to remove the tubing.
7. Remove the two clamps and the intensifier.
8. Using a 7/16" wrench, remove the following tubing section:
• Vent port to vent valve outlet (1/8" dia.)
9. Remove the panel knobs from the Pressure and Vent valves using the .061" hex wrench.
10. Loosen and remove the two panel screws (PN 60837) from the panel front that secure the valves to the
panel.
11. Remove the five retaining nuts and lock washers that secure the chassis to the panel.
12. Lift the chassis enough to allow the MPV
valves to clear and remove the
valves.
13. Reposition the chassis over the mounting studs and secure with at least two nuts.
3.2.3
MPV
Valve
, Valve Seat Removal
Tools required:
A/R solvent (de-natured alcohol)
Socket wrench
3/4" Socket
Needle housing socket (65580)
Hex wrench (.050")
Hex wrench (.061")
Needle-nose pliers
Tube fluorinated Krytox grease (PN 55593)
Electric hand drill
No. 43 drill bit
No. 4-40 tap
Tap handle
Small hammer
NOTE: See Table 3-2 on page 19 and Figure 3-2 on page 22 for additional parts information.