19
IDP-7 Dry Scroll Vacuum Pump
DRAF
T 1/19/17
3. Using a crescent wrench, remove the exhaust adapter
(item 2).
4. Remove the front cowling and hang out of the way
(item 3). Unplug cable.
5. Remove (4) M5 bolts (item 4).
6. Remove the scroll housing axially off the frame
(item 5).
7. Remove and discard the worn tip seals (item 7 and 8)
and the main O-ring (item 6).
8. If compressed air is available, blow any remaining
seal debris off the scroll parts. If seal debris is
attached to the sides, use a razor or Exacto knife to
scrape the debris off.
To install the new seals and O-rings:
1. Unpack the Tip Seal.
2. Install the closed loop portion of the Tip Seal onto the
Orbiting Scroll (item 9).
3. Sequentially insert the seal from center to the outer
edge of the scroll wall.
4. Cut the Tip Seal about 1/8" (3 mm) from the groove
end.
5. Use the remaining Tip Seal material to fill the seal
groove on the Scroll Housing and again trim the
excess Tip Seal so that a gap of about 1/8" (3 mm)
remains.
6. Place the new main O-ring onto the Frame (item 10).
Make sure the area where the O-ring sits is clean.
7. Carefully replace the Scroll Housing making sure to
line up the Locating Pins. Be sure that the Tip Seal has
not fallen out of its groove.
8. Reinstall (4) M5 bolts (item 4). Torque the (4) M5 bolts
to 4 N-m (40 in-lbs).
9. Place the front cowling in place and replace the M8
bolts.
10. Reinstall the exhaust adapter.
11. Reconnect the pump to the electrical power mains.
Figure 7 Exploded View of Pump Body
