Agilent IDP-3 Mode D'emploi page 176

Technical Information
Figure 25 Tip Seal Seating
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If the seal's curl seems to have lost some of its curl radius and does not fit
into the center of the scroll, re-form the seal end using a pair of round nose
pliers to make it fit into the groove. Tip-Seal kit instructions indicate which
face should be up (valid for Service Kits only).
b. Cutting the tip seal off about 1/8" (3 mm) from the outer end of the groove.
Install the correct tip seal into the groove of the outboard housing scroll
(item 4) as in step 3.
Place the new main O-ring into the groove in the frame (item 10). Ensure that
the groove is clean.
Ensure the sealing face of the outboard housing is clean. Carefully replace the
outboard housing by lining up the locating pins. Ensure the tip seal has not
fallen out of its groove.
Reinstall (4) M5 bolts (item 4) and torque the (4) M5 bolts to 5.6 N-m (50 in-lb).
Reconnect the electrical connector at the front cowling.
Place the front cowling in place and replace the M5 bolts.
Reconnect the pump to the electrical power mains.