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06/2002 E dition S tudent Guide HS-50 Advance d I 12 Preve ntive Maintenance 44
Student Guide HS-50 Advanced I 06/2002 Edition
12 Preventive Maintenance
43
Remove the front part of the head
: Use the ‘Single Functions’ menu to return the nozzles from all Collect & Place heads to the
nozzle changer.
: Switch the placement system off at the main switch.
Follow the correct shut-down routine.
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Remember to follow the ESD regulations!
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: Cover the feeding area so as not to damage the component feeder modules and front part of
the head.
a Detach the ribbon cables for the front part of the head from the conversion board.
s Detach the compressed air hose.
(Use the pliers provided in the service box for the DLM 1 and DLM 1-6 heads).
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d Loosen the 3 (10,000 / 8000 head) or 4 (DLM1 / DLM1-6) screws in the front part of the head
(using the 3 mm hexagon socket spanner) and remove the front part.
Hold the front part of the head securely while you remove the screws.
Be careful not to damage the white plastic distributor disk and the distributor block.
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Turn the star half a revolution to avoid damaging the valve plunger drive with the valve plunger.
: Place the front part of the head on a soft ESD surface (with the valve plungers underneath) or
place it on a suitable stand.
: Remove the sleeves and store them in the containers provided.
06/2002 Edition Student Guide HS-50 Advanced I
12 Preventive Maintenance
44
Student Guide HS-50 Advanced I 06/2002 Edition
12 Preventive Maintenance
45
Z axis (front part of the head)
a Use a brush or cottonwool buds to remove dirt from the toothed belt for the Z-axis.
: Clean the rollers, cogs and the toothed belt using a cottonwool bud or lint-free cloth moistened
with ethyl alcohol.
: Check the toothed belt for wear.
If the toothed belt shows signs of wear, replace it with a new belt (see
Service Manual).
: Grease the toothed belt sparingly with ISOFLEX TOPAS NCA 52, then remove any excess
grease.
s Check that the Z axis guide runs easily and without backlash.
: Check the jaws for wear.
If you find any defects in the Z axis or jaws, return the placement head to Munich for repair.
Oiling the miniature roller table
: Move the Z axis into its bottom position.
: Wipe off the needle of the syringe.
Don't press oil out of the syringe. A visible drop would be too much oil.
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d Place the needle on the grooves of the miniature roller table. By placing it enough oil gets into
the grooves (by capillary attraction).
: Move the Z axis up and down several times to distribute the film of oil.
Distributor disk
f Remove the distributor disk.
: Blow it through with compressed air.
g Clean it using a lint-free cloth moistened with ethyl alcohol.
: Grease it very sparingly on the back with ISOFLEX TOPAS NCA 52 to ensure that it remains
sealed with respect to the star.
Remove any visible excess grease.
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There must NOT be any grease in the holes.
: Place the distributor disk on a clean surface.