Labconco PURICARE Procedure Station Models 34812xx - Manual (Page 131)

Page 131 of 197
bolts until the plenum contacts the HEPA filter and has slightly compressed
the filter gasket.
NOTE: The lift bolts should only be tightened enough to ensure a proper seal
of the supply HEPA filter. At maximum tightness, the supply filter's gasket
should be compressed to less than 50% of its original thickness. NEVER
tighten the locking bolts beyond this setting.
Motor/Blower Replacement
Caution: The cabinet must be properly decontaminated before servicing the
motor/blower.
The cabinet blower motor's bearings are sealed and require no lubrication.
DO NOT attempt to lubricate them.
To replace the Motor/Blower:
1. Unplug the cabinet.
2. Remove the front dress panel as shown in Figure 8-1.
3. Loosen all of the Phillips screws on the blower chamber cover. Remove all of the
screws except two screws on the top center of the panel. This will support the panel.
4. Remove the last two screws. Gently rock the cover, slide it to the left or right, and
swing it out and away from the unit.
NOTE: During disassembly, the blower plenum cover can rest on the central sash
support, as shown in Figure 8-13, to allow for repositioning of the panel or your grip on
it.
5. Disconnect both motor connectors from the motor. The 5-pin power connector,
located closest to the blower, is released by pressing the locking ears on either side
of the connector. The 16-pin data connector, located furthest from the blower, is
released by pressing the single locking ear located on the inside center surface of
the connector body. The connectors are shown in Figure 8-15.
Figure 8-15
ECM Power Connector Release Tabs
ECM Data Connector Release Tab
6. Using a 1/2-inch wrench, remove the two
upper and one lower blower mounting bolts,
as shown in Figure 8-16.