Condec DLR3110 - Manual (Page 53)

Maintenance and Service 49
7.2.17 Test Port Filter (PN 54188) Removal and Installation - 250 and 2500 Full Scale PSI
The port filter is a sintered element filter which is easily removed for inspection and cleaning.
Tools required: Phillips screwdriver
7/16" open end wrench
9/16" open end wrench
A/R solvent (denatured alcohol)
SNOOP, of liquid leak gas detector (PN 64781)
Removal
1. Remove cover from chassis as described in Section 7.2.1 on page 39, and carefully set on a bench.
2. Loosen and remove the tubing end nut from the reducing union (PN 59764).
3. Loosen and remove the reducing union (PN 59764) from the fractional tube fitting (PN 59780).
NOTE: Use PN 54946 for fractional tube fitting field replacement.
4. Clean the filter (PN 54188) in solvent (denatured alcohol) and blow-dry with compressed air.
Installation
1. To reinstall, reverse the order of steps 2 and 3 of Section 7.2.17 above.
2. Using a pressure source set input pressure to approximately 100% of full scale rating of DLR3110 and
check all fittings for leaks.
3. Install panel/chassis assembly in its enclosure as described in Section 7.2.1 on page 39.
7.2.18 Test Port Quick-Connect Fitting (PN 59004) and Filter (PN 54188) Removal and Installation - 5000 and 10000 Full
Scale PSI
Every two months, a coating of fluorinated Krytox grease should be applied to the inner seal of the test port
fitting. The pressure cap (PN 58216) should be plugged in whenever the unit is not in use.
NOTE: For simplest method, apply fluorinated Krytox grease to the outside surface between sealing lip and end of
mating pressure cap. Do not put grease on flat end of tip, as this may allow grease to enter system. Vent unit line
pressure to atmosphere. Plug pressure cap into test port. Rotate pressure cap clockwise and counter-clockwise to
transfer fluorinated Krytox grease to O-ring seal.
If there is leakage out of the port when the pressure cap is in place, replace the port fitting.
Tools required: Phillips screwdriver
11/16" open end wrench
adjustable wrench
9/16" open end wrench
A/R solvent (denatured alcohol)
A/R 1/4" wide Teflon tape (PN 60575)
A/R 1/2" wide Teflon tape (PN 60911)
tube fluorinated grease (PN 55593)
SNOOP, liquid leak gas detector (PN 64781)
1. Remove cover from chassis as described in Section 7.2.1 on page 39, and carefully set on a bench top.
2. Loosen and remove the tubing end nut from the reducing tube fitting (PN 59830).
NOTE: Use PN 54047 for reducing tube fitting field replacement.
3. Loosen and remove the reducing tube fitting and filter (PN 54188) from the test port quick-connect
fitting.
4. Clean the filter (PN 54188) in solvent (denatured alcohol) and blow-dry with compressed air.
5. Grasp the test port quick-connect fitting on the flats from the rear of panel with a 11/16" wrench and
using an adjustable wrench, turn the locknut counter-clockwise. Remove locknut.
6. Remove old and install new test port quick-connect fitting (PN 59004) through front of panel.
7. Thread and tighten locknut by grasping the test port quick-connect fitting on the flats from the rear of
panel with a 11/16" wrench and using an adjustable wrench, turn the locknut clockwise.
8. Slide filter (PN 59764) into reducing tube fitting and install into the test port quick-connect fitting.
9. Replace and tighten the tubing end nut on the reducing tube fitting.