AirSep MN134-1 B - Manual (Page 24)

MN134-1 rev B
02/14
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3. Open the plastic twist clamps.
4. Cut the tie-wraps (located near the power cord push-on connectors).
5. Disconnect the white power cord lead from the
I /0 switch lead.
6. Disconnect the black power cord lead from the top terminal on the circuit
breaker.
7. Locate strain relief inside power cord receptacle. Press both ends together
with pliers while pushing power cord from the back to remove power cord.
Pull the power cord through the opening on the power cord receptacle.
8. Using the same length of installation for the strain relief from the original
power cord, slide the strain relief onto the new power cord so that the larger
lip of the strain relief faces the power cord plug end.
9. Insert and install the new power cord through the opening of the receptacle
squeezing the strain relief together with pliers to secure in place.
10. Reconnect the power cord leads, close the plastic twist clamps, and reattach
the tie-wraps.
11. Reconnect the side and back panels.
5.16 Oxygen Monitor Circuit Board Replacement (In Equipped Units)
Oxygen Monitor Circuit Board Removal
To remove the circuit board, follow the steps below:
Care must be taken when removing and installing tubing to circuit
board sensor to prevent damaging sensor.
1. Set the unit’s I /0 switch to the “0” position, and disconnect the power cord.
2. Remove the side and back panels.
3. Locate oxygen monitor circuit board and carefully disconnect the 4-pin wire
harness from circuit board.
4. Using Phillips-head screwdriver, remove screws and spacers securing
circuit board to superstructure.
5. Disconnect tubing connections from circuit board sensor. (Note: depending
on unit, there may be one or two tubing connections on the sensor). Review
of tubing connection position(s) should be made prior to disconnecting.
Oxygen Monitor Circuit Board Installation
To install a new circuit board, follow the circuit board removal procedure in reverse
order.
1. Be sure to reinstall tubing connection(s) to correct position on sensor of
new circuit board.
2. Spacers are installed between circuit board and superstructure.
If unit is installed with a ceramic-style O
2
monitor circuit board and the
circuit board requires replacement, you will need to retrofit the unit to
the ultrasonic-style O
2
monitor circuit board. (Retrofit kit part number:
KI366-2)