Microlab
®
STAR Service Manual
6-17
6.3.3 Pipetting Channel Alignment
By placing the adjustment Tool once, two channels at a time may be adjusted.
For providing best adjustment results, the Design of the Adjustment Tool is to avoid
the need to turn it around which may cause a shift from the theoretical Y-Axis
between Channels from the left and the right side of pipetting Arm.
Note: During adjustment use always the same orientation with the adjustment Tool,
i.e. left side of adjustment Tool always to left Pipetting Arm's left upper Y-Guide
shaft.
Fix the channel adjustment tool in-between the Pipetting Arm's upper Y-Guide
shafts with the knurled screw and ensure play-free positioning.
Do not forget to check adjustment tool alignment onto Pipetting Arm's upper Y-
Guide shaft
Preliminary actions:
Attention: Exercise care when moving the Pipetting Arm and / or the Pipetting
Channels. Move them gently to the desired position.
• To gain access to the Pipetting Channels uncover the Pipetting Arm see section
7.4.3 Pipetting Arm on page 7-14.
The 2 Panels in the back may remain on the Pipetting Arm.
• Carefully unscrew and remove Y-Spindles P/N 173446 (complete with Washer
P/N 173499 and Nut 408006) from Pipetting Arm.
Refer to section 7.4.3 Pipetting Arm on page 7-14.
Note: The Y-Spindles must be removed due to the fact that too much friction from
the Y drive mechanism hinders a proper alignment between the Channel’s Z Guide
and the Channel Adjustment Tool reference grooves
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