Mindray BA-88A Service Manual page 29

surface of the lamp base. If obvious blow-up is found, skewed installation of the
lens might be the cause and the readjustment might be needed.
4 When disassembling, if it is not necessary to replace the motor, filter wheel or
sensor stop plate, we recommend you to keep the connection between the motor
and the filter wheel, thus the installing procedure would be simplified; otherwise,
the relative position between the filter wheel and the motor positioning surface
might change. Fixture BA89-J01 should be used to position. If there is no fixture
on the spot, ensure distance between the position surface of the control motor
and the filter wheel end face is 59.6±0.5mm. Please refer to the following figure.
Figure 3-7 Filter wheel positioning
5 During assembly and disassembly, ensure that optical elements like filter, lens
and bulb are properly protected. When installation is completed, use balloon to
blow away the dust or other impurities from the surface of the optical elements.
3.2.3.4 Adjust the Filter Wheel Home Position
If any of the following components: filter wheel, home position sensor, motor is
dismounted or conduct any operation that might lead to the dismounting of these
components, the home position of the filter wheel might be modified, so the test result
might be inaccurate. Thus, dismounting of these elements should be followed with
the adjustment of home position of the filter wheel. During adjustment, PC, serial
cable and test&maintenance software are used. The procedure for adjusting is shown
as follows:
1 After the instrument is reassembled, power on the analyzer.
2 Click Maintenance on the main screen of the instrument. Select Maintenance
tab. Click Advanced and enter the password "analyzer" to enter the advanced
adjustment interface.
3 Click H pos..
4 When the system is in Standby (if Lamp stabilizing is displayed, tests can only
be started when lamp is stabilized), Put the aspiration tubing into a tube filled
with about 2 ml of distilled water. Click Asp.. When the aspiration is completed,
click Start to calculate the deviation.
3 System Description 3-7