Replace The Bag Support Arm - GE Datex-Ohmeda Aisys Carestation Reference Manual

Anesthesia machine
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9.20 Replace the bag support arm

Note: To help prevent the bag
arm mounting from loosening,
current production machines
use socket head screws and
flat washers to secure the bag
arm to the casting instead of
Posidriv screws and
lockwashers. Refer to the
parts section for stock
numbers.
Note: The adjustment nut is
initially set so that 5-mm of
exposed thread extends from
the adjusting nut. With use,
the force required to move the
arm increases and may
require readjustment.
M1046983 04/08
1. Remove the ABS breathing system from the machine.
2. From the underside of the casting,
remove the hardware (A) that holds
the arm in place.
• If either of the pins (see below)
remain in the casting, remove
them from the casting.
3. Install the new bag support arm
assembly.
• Position the bag arm over
mounting pattern of 4 small holes
in the support casting. The arm
should extend towards the front of
the machine. Align the two pins
(B) extending from the base of the
bag arm assembly, with two of the
small holes in the casting that are
in line with the APL valve.
• Lower the bag arm, pushing the two pins into the holes.
• From the underside of the casting, secure the bag arm with two M3x20 socket
head screws and flat washers.
4. Test the force required to swing the bag arm from side to side and adjust if necessary.
The force is adjusted by turning the
lock nut (8-mm socket) which is
accessible from underneath the
support casting. Turn clockwise to
increase the force and
counterclockwise to reduce the
force.
• Swing the bag arm sideways
through the 90 degree arc
permitted by its internal stop.
• Adjust to just enough friction to prevent the bag arm from swinging sideways as
the bag height is being changed. The bag arm height is changed by squeezing the
lock release lever (C) at the free end of the bag arm and rotating it to the desired
position.
5. Replace the ABS breathing system.
9 Repair Procedures
A
B
C
9-49

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