PN 903-8797, Rev A
13. Replace parts in the Filterblock sections:
The Membrane Filters, o-rings, Sintered Disks, and Flow Restrictors can
be re-used, unless they are damaged (are creased, have holes, or are
transparent) or contaminated (with liquids, oils, or waxes); in this case,
replace with new parts.
Be extremely careful not to damage the new Membrane Filters.
The High-Flow Membrane Filter is bonded to its o-ring at the factory –
do not attempt to separate them.
With the membrane side of the Back Filterblock section facing up, install
one (1) cleaned (or new, Part No. 300-6257) Sintered Disk into its recess.
Install one (1) new #006 o-ring (Part No. 300-6244) in the o-ring groove.
Carefully install one (1) cleaned (or new, Part No. 300-8594, comes with
separate #216 o-ring) Type-5 Membrane Filter by centring the Membrane
over the Sintered Disk and the o-ring groove. Place the o-ring over the
Membrane and gently press the o-ring into the groove in one location.
Continue with the section across from the rst location and gently press
the o-ring into the groove. Continue alternating locations/pressing until
the o-ring is completely seated in its groove and the Membrane is tightly
stretched.
With the membrane side of the Center Filterblock section facing up,
install one (1) cleaned (or new, Part No. 300-6257) Sintered Disk into its
recess. Install one (1) new #006 o-ring (Part No. 300-6244) in the o-ring
groove. Carefully install one (1) cleaned (or new, Part No. 300-5862, comes
with attached #216 o-ring) High-Flow Membrane Filter by centring the
Membrane/o-ring over the Sintered Disk and the o-ring groove (o-ring side
up). Gently press the o-ring into the groove using the same method as the
Type-5 Membrane Filter, until the o-ring is completely seated in its groove
and the Membrane is tightly stretched.
14. In each Filterblock section, ensure that the o-rings are still in place and
stack the three sections together while aligning the screw holes. Install the
six (6) M6 x 50 screws and tightening them in a cross-pattern. The torque
specication to fasten M6 screws is 4.0 Nm, ±0.7 Nm (36 in.-lb, ±9 in.-lb).
Maintenance and Troubleshooting | 4-27
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