baxter Flo-Gard 6301, Service Manual, Page: 81 / 252

07-19-B1-729 FLO-GARD 6301 DUAL CHANNEL VOLUMETRIC INFUSION PUMP SERVICE MANUAL
8-7
Removal/Replacement Procedures Disassembly/Reassembly
Separation of Printed Circuit Boards
1.
Separate the front and rear housings completely except for the ground
wire (“Separation of Front and Rear Housings” on page 8-5).
2.
Disconnect the two connectors (CN601 and CN602) of the front panel
film (Figure 11-1 , item 3) from the CPU board (Figure 11-2 , item 2).
3.
Disconnect the following pump head connectors (Figure 11-18 ) from
the CPU board with the wire harness connector extractor, part no.
UKOG1021.A:
Q
Pump 1: CN201, CN803 (right side) and CN851, CN811 (left side)
Q
Pump 2: CN202, CN852, CN812, and CN804 (left side)
4.
Remove the six screws (Figure 11-2 , item 15) that hold the CPU board
in the front housing.
5.
Hold the top and bottom center of the CPU board and remove the printed
circuit boards carefully from the front housing.
Note: If resistance is felt, the top portion of the printed circuit boards may be affixed
to the front housing by the adhesive of the seal around the LCDs. Incline the
bottom center of the CPU board until the seal comes off the front housing
before the removal.
6.
Place the printed circuit boards with the LCD display face down on a
dust free flat surface. Be careful not to touch or damage the LCD display
surface. Keep them away from dust. Take care not to place the LCD
display on components (such as screws) that could damage the LCD
display.
7.
Reassemble in reverse order.
Note: Be sure to remove any dirt or dust on the LCD or its windows on the front
housing before tightening the sensor board to the front housing.
Placing the one side of the CPU board under the two connectors, CN601 and
CN602, first simplifies the replacement of the board. Do not pinch the pump
head harness and the grounding wire between the pump head fixing brackets
(Figure 11-2 , items 5 and 6).
8.
Reconnect all the removed connectors.
9.
Tighten the six screws (Figure 11-2 , item 15) securing the CPU board to
7 kgf-cm (6.1 in-lb).
Note: The function of the four printed circuit boards can be checked outside of the
front housing as long as all the connectors are properly connected.
10.
Perform the Operational Checkout procedures in Chapter 10,
“Operational Checkout”.