Disassembly / Assembly Of Pump - CME BodyGuard 323 Service Manual

2. Disassembly / Assembly of Pump

2.1 Separation of front and rear housing
Note: Always disassemble the pump on and ESD work surface with wrist strap
secured. Failure to do so could cause damage to the internal components of the
pump.
1. Turn the pump off and place it face down on an anti-static mat or ESD-
grounded work surface. Make sure there are no metal parts (including screws
and nuts) on the working surface in order to avoid scratching the pump housing.
2. Remove the battery from the rear housing. First lift up the battery release
handle and pull out the battery bottom first.
3. Remove the 4 mounting screws. These 4 screws
connect the front and rear housing. 2xM2 screws are
located under the battery compartment. 2xM3 screws
are located on the lower portion of the housing.
Remove the QC approval label to reveal these two
screws.
4. Separate the front and rear housing by holding
the front housing firmly against the ESD mat and
lifting the rear housing vertically away from the front
housing. Remove the screws from the rear housing
and set them aside for later use.
2.2 Reassemble the housing
1. Place the front housing face down on the ESD mat and lower the rear housing
onto it so that the seams of the two parts line up correctly. Do not use excessive
force to reassemble the front and rear housing. If resistance is encountered,
ensure that the connector between the front and rear housing is lined up
properly.
2. Reinstall the 4 mounting screws.
3. After reassembling, switch the pump ON and perform the Self Test.
4. If service has been completed, perform Operational Checklist and Performance
Acceptance Test
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