156 Instructions for use Isolette 8000 plus SW 5.n
Service
13.5.1.7 Fresh air valve replacement
1 Perform disassembly instructions (see Disassembly on page 135).
2 Disconnect all external cables from the controller, and remove and retain 2 wing
nuts.
3 Partially remove the controller from the shell, disconnect all internal cables, and
then fully remove the controller.
4 Open the shell assembly partially, and disconnect the corrugated hose.
5 Remove the upper shell.
6 Remove fresh air valve.
7 Install new fresh air valve.
8 Reassemble by reversing the order of disassembly.
9 Perform the Functional check procedure on page 63.
13.5.1.8 Heat shield latches replacement
Two heat shield latches are on each access panel and on the rear hood wall of
single-access devices.
1 Remove heat shield latch.
2 Replace heat shield latch.
13.5.1.9 O-ring replacement
1 Perform the disassembly instructions (see Disassembly on page 135).
2 Disconnect all external cables from the controller, and remove and retain 2 wing
nuts.
3 Partially remove the controller from the shell, disconnect all internal cables, and
then fully remove the controller.
4 Open the shell assembly partially, and disconnect the corrugated hose.
5 Remove the upper shell.
6 Remove both tilt bar mechanisms.
7 Remove and discard the existing tilt bar O-rings.
8 Install a new tilt bar O-ring onto each tilt bar mechanism.
9 Reassemble by reversing the order of disassembly.
10 Perform the functional check procedure (see page 63).
13.5.1.10 Fan motor replacement (main) including vibration isolators
1 Perform the disassembly instructions (see Disassembly on page 135).
2 Disconnect all external cables from the controller, and remove and retain 2 wing
nuts.
3 Partially remove the controller from the shell, disconnect all internal cables, and
then fully remove the controller.
4 Open the shell assembly partially, and disconnect the corrugated hose.
5 Remove the upper shell.