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TECHNIC AL RE FERENCE FAULT FINDIN G 1.60 ProFlow Manual Chapter Issue 8 Dec 02

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TECHNICAL REFERENCE
FAULT FINDING
Chapter Issue 8 Dec 02 ProFlow Manual 1.59
Top side of stencil not cleaning Wipers damaged. Replace wipers.
Insufficient board support. Add/modify tooling.
Insufficient stencil support. Add stencil support.
Transfer head too large for product. Use 300mm head for all products up to
300mm long and shortest possible for
larger products.
Skis damaged or dirty. Replace with latest issue skis, Mylar
vulcanized into PTFE (black).
Too much paste pressure. Reduce paste pressure.
Insufficient paste pressure. Increase system pressure.
Contact position set incorrectly. Reset contact height to just deflect the
stencil when viewed from the under-
side.
Insufficient paste on fine pitch devices Cassette empty. Replace cassette and check adjust-
ment of cassette low sensor.
Paste pressure too low. Reset pneumatic pressure.
Insufficient board support. Investigate/modify tooling set up.
Incorrect stencil design. Ensure that stencil conforms to aper-
ture height.
Insufficient paste through large aper-
tures
Paste pressure too high. Reset pneumatic pressure.
Print speed too high. Adjust print carriage speed
System pressure too high. Adjust system pressure setting.
Cassette empty. Replace cassette and check cassette
low sensor setting.
Insufficient paste in apertures at the
end of print stroke
Board bowed upwards by tooling too
close to the rails.
Move the tooling towards the centre of
the board.
Rail to table height setting incorrect
causing bowing over the tooling pins.
Check and reset the rail to table height
setting.
Paste pressure too low. Reset pneumatic pressure.
Symptom Possible Causes Possible Solutions
TECHNICAL REFERENCE
FAULT FINDING
1.60 ProFlow Manual Chapter Issue 8 Dec 02
A3 DRAWINGS
GA LISTING
Chapter Issue 8 Dec 02 2.1
CHAPTER 2 A3 DRAWINGS
GA LISTING
Description Drawing No. Sheets Issue State
Light Shroud Assembly - ProFlow 137465 1 Issue 2
Down Stop GA 137477 1 Issue 1
Paste and Gun Holder Assembly 137753 2 Issue 3
ProFlow SCAR Assembly GA (SMC) 137894 1 Issue 1
ProFlow Mechanism GA 156020 1 Issue 3
Light Shroud GA Cast Print Carriage 156553 1 Issue 3
Transfer Head Dual Chamber 300mm Cassette 171222 1 Issue 3
Transfer Head Dual Chamber 350mm Cassette 171223 1 Issue 3
Transfer Head Dual Chamber 400mm Cassette 171224 1 Issue 3
Transfer Head Dual Chamber 150mm Rechargeable 171225 1 Issue 1
Transfer Head Dual Chamber 300mm Rechargeable 171226 1 Issue 3
Transfer Head Dual Chamber 350mm Rechargeable 171227 1 Issue 1
Transfer Head Dual Chamber 400mm Rechargeable 171228 1 Issue 1
Transfer Head Dual Chamber 450mm Rechargeable 171229 1 Issue 1
Transfer Head Dual Chamber 500mm Rechargeable 171230 1 Issue 1
Transfer Head Single Chamber 300mm Cassette 171231 1 Issue 1
Transfer Head Single Chamber 350mm Cassette 171232 1 Issue 1
Transfer Head Single Chamber 400mm Cassette 171233 1 Issue 1
Transfer Head Single Chamber 300mm Rechargeable 171234 1 Issue 1
Transfer Head Single Chamber 350mm Rechargeable 171235 1 Issue 1
Transfer Head Single Chamber 400mm Rechargeable 171236 1 Issue 1
Transfer Head Single Chamber 450mm Rechargeable 171237 1 Issue 1
Transfer Head Single Chamber 500mm Rechargeable 171238 1 Issue 1
ProFlow Pressure Mechanism, SCAR GA 171244 1 Issue 1
ProFlow SCAR Assembly GA (Norgren) 171297 1 Issue 1