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5 Monthly m aintenance jobs HS Preventive Maintenance 01/2006 US E dition 30 5
HS Preventive Maintenance 5 Monthly maintenance jobs
01/2006 US Edition
29
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You will need the following tools, equipment and consumables for monthly maintenance. 5
– Laboratory gloves
– Lint-free cloths
– Lens cloth
– Lint-free cottonwool buds
– SIPLACE cleaning tissue
– Ethyl alcohol
– Set of cleaned sleeves
– Set of cleaned and lightly greased valve plungers
– Switch for head crash guard, if necessary
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Replace the sleeves and valve plungers 5
: Use the "Single Functions" menu to return the nozzles of the Collect&Place head to the nozzle
changers.
a Open the protective cover.
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Do not hold the sleeves in your bare hands. Wear laboratory gloves when carrying out any main-
tenance work on the sleeve. 5
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This will avoid dirtying the glass disk, the friction wheel, and the suction plate unnecessarily, which
could lead to faults (counting errors and overshooting). 5
Do not hold the suction plates to avoid damage. 5
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s Remove the sleeves from the head.
Pull out the sleeves as shown in the diagram. 5
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d Place them in the container provided.
Use the "Single Functions" menu to advance the star.
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5 Monthly maintenance jobs HS Preventive Maintenance
01/2006 US Edition
30
5
HS Preventive Maintenance 5 Monthly maintenance jobs
01/2006 US Edition
31
a Remove the valve plungers.
When you pull out the valve plunger, be careful not to touch the small boards. The valve plungers
are conductive and could cause a short-circuit. 5
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s Clean the valve casing using a cottonwool bud moistened with ethyl alcohol.
: Insert the cleaned and very lightly greased valve plungers into the valve casing.
See section ("Maintain the valve plungers").
: Move them back and forward several times.
: If the valve plungers move very easily, replace them with new plungers.
If the valve plungers move too easily, they cannot be guaranteed to work correctly. 5
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d Clean the segment using a cottonwool bud moistened with ethyl alcohol.
Never use pipe-cleaners or bottle brushes to clean the segment.
This could tear out the sleeve retaining springs or leave lint or hairs in the segment which, in turn,
could cause faults. 5
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: Insert the cleaned sleeves into the segments.
See section ("Maintain the sleeves").
Use a very gentle pressure to engage the sleeves to avoid damaging the retaining springs. 5
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: Use the "Single Functions" menu to pick up the nozzles of the Collect&Place head.