Smiths Medical Medfusion 3000 Series, Technical & Service Manual

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Parts Replacement
80
40-5648-51B
wires oriented toward the bottom of the housing.
Medfusion™ 3500BC: Install AC Input Module As-
sembly with 3 wires, mains wires oriented toward
the bottom of the housing, earth wire oriented
toward the top.
2. Insert the 2 wires into the Terminal block on the
power supply.
3. Tighten the 2 screws of the Terminal block.
Torque to 32 in oz (0.4 Nm).
4. Secure with the 2 flathead screws & Nylock nuts.
Medfusion™ 3500BC: Reinstall the earth wire from
the A/C inlet to the A/C supply mounting post
furthest from the A/C inlet. Torque to 60 in oz (0.8
Nm).
5. Reinstall the Power Supply Shield by sliding it into
the notched tabs.
6. Close the housing and secure with 2 pan head
screws. Torque to 60 in oz (0.8 Nm).
7. Replace the battery pack, battery cover, and secure
with 2 flat head screws. Torque to 60 in oz (0.8
Nm).
Verifying AC input assembly module
function
1. After you replace or repair the AC Input Assembly
Module, you must verify its nominal function with
the following steps:
2. Plug the pump into AC power.
3. Verify the AC power indicator lights.
Follow retest guidelines listed in the Calibration and
Adjustment section to verify pump functionality be -
fore returning it to use.
Bottom housing plastic
Tools Needed
For this disassembly procedure you will need:
• ¼” open end wrench
• Torque screwdriver with a Phillips head and
small flat blade
Always work at an electrostatic-controlled work sta-
tion when disassembling the pump.
Removing the bottom housing
1. Disconnect the pump from AC power source.
2. Open the pump housing, remove battery pack,
and separate the top and bottom halves.
3. Unplug the ribbon cable from J9 on the main
board (in most cases the other end of this ribbon
cable is glued or soldered directly into the inter-
connect board).
4. Remove the Interconnect Board, the speaker, the
Power Supply Shield, the AC Power Supply, and
the AC Input Assembly using the procedures listed
above.
Replacing the bottom housing
1. The new case bottom should have rubber feet,
and IR lens already installed; however, new labels
(included) need to be applied.
2. Record the serial number from the old case bot -
tom. Take the new serial number label and type
the serial number into the blank field on this label.
Take the overlay supplied with the label, remove
the backing and apply this overlay to cover/protect
the typed serial number label.
3. Remove the backing on the typed serial number
label, and apply this to the new case bottom.
4. Attach all new labels to the new case bottom, use
the old bottom as a guide for label application.
5. Install the AC Power Supply, the AC Input As -
sembly, the Power Supply Shield, the speaker, and
the Interconnect Board into the replacement hous -
ing using the procedures listed above.
6. Reconnect the ribbon cable to J9 on the main
board in the top housing.
7. Close and secure the two halves of the housing,