Condec UPC5210 - Manual (Page 24)

Maintenance & Service 21
2. Energize the unit and let warm up. Turn RANGE SELECT switch to highest range. To adjust the
COARSE valve, go to step 3.
3. Using a .050" hex wrench, loosen the set screw (34) on the locknut (2) and turn the locknut clockwise to
its stop.
4. Check to see that the knob insert (4) is securely fastened to the valve shaft (11). If it is loose, re-tighten
the set screws (23) with the .061" hex wrench.
5. Close the COARSE valve by turning the knob insert (4) clockwise until you feel the valve needle seat on
the O-ring (valve is now in closed position).
6. Rotate gears on both ISOLATION valves (two inner valves), counter-clockwise until they stop, then
rotate clockwise 1/2 turn (opening isolation valves).
7. With a pressure source connected to the INPUT PORT (*4). Use the REGULATOR (*1), to increase the
regulated pressure (monitor REGULATED PRESSURE gauge) to 1/10 of Full Scale. Enable the PUMP
CONTROL switch (20) and monitor the pressure as it builds in the ACCUMULATOR gauge (*9). Turn
the PUMP CONTROL switch (20) off when 80% to 100% of Full Scale has been achieved.
8. Open the VENT valve (*8) to atmosphere, then close the VENT valve (*8).
9. Slowly open the COARSE valve by turning the knob insert (4) counter-clockwise until you notice the
displayed pressure increase. Then turn the knob insert slightly clockwise until the pressure stops rising.
10. Mark a radial line at the 12 o'clock position on the knob insert.
11. Turn the knob insert (4) clockwise to move the mark to the 6 o'clock position.
12. Turn the locknut (2) counter-clockwise until it contacts the bottom of the stop washer. Tighten the set
screw (34) on the locknut with the .050" hex wrench.
13. Install the COARSE valve knob (3) on the knob insert (4) and engage its gear (5) with the smaller
ISOLATION valve gear (6). Turn the knob clockwise until the ISOLATION valve is slightly snug.
CAUTION: Do not use excessive torque when tightening coarse valve knob. Doing so may damage seat.
14. Remove the COARSE valve knob. Align the set screws (25) with the indentations on the knob insert .
Install the knob on the knob insert while engaging the knob gear (5) with the ISOLATION valve gear (6).
15. Tighten the set screws (25) with the .061" hex wrench. The COARSE valve is now adjusted.
16. To adjust the VENT valve, follow steps 3 and 4.
17. Close the COARSE valve by turning the COARSE knob (*2) clockwise.
18. Close the VENT valve knob insert (4) clockwise until slightly snug.
19. With a pressure source connected to the INPUT PORT (*4). Use the REGULATOR (*1), to increase the
regulated pressure to 1/10 of full scale. Enable the PUMP CONTROL switch (20) and monitor the
pressure as it builds in the ACCUMULATOR gauge (*9). Turn the PUMP CONTROL switch (20) off
when 80% to 100% of Full Scale has been achieved. Open the COARSE valve until the indicated
pressure stabilizes and then close the COARSE valve.
20. Slowly turn the VENT valve knob insert (4) counter-clockwise until the display starts to decrease, then
turn the knob insert (4) slightly until the indicated pressure stops decreasing.
21. Follow steps 10 through 15 replacing the term "COARSE valve" with "VENT valve". The VENT valve
is now adjusted.
4.2.9 Accumulator Assembly, O-ring (PN 58051) Replacement, Filter (PN 56993) Cleaning
Tools required: Phillips screwdriver
5/8" open end wrench
adjustable wrench
A/R 1/4" wide teflon tape, (PN's 60575)
tube fluorinated Krytox grease (PN 55593)
A/R solvent (de-natured alcohol)
Disassembly:
1. Remove accumulator assembly from UPC5200/UPC5210 per Section 4.2.2 on page 16.
2. Place accumulator body in vise, using flats.
3. Remove plug adapter fitting (PN 57134) using adjustable wrench.