Operating Instructions_VF335_en.pdf - 第414页
8|Service and maintenance Assembling the pump riser tube WARNING Danger of burning when immersing components into liquid solder! ü When immersing cold components, there is a risk of burns due to spouting solder! a) Imm…
8|Service and maintenance
Cleaning the solder surface
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Fig.156: Cleaning the solder surface
a) Remove any solder dross from the entire solder surface (1) with the solder
scraper (2) or a silicone scraper.
b) Collect the solder dross in a corner of the solder pot.
ð Please note: Work carefully and exerting little pressure to avoid damaging
coated surfaces!
c) Carefully clean the area around the coding pins (5).
d) Carefully clean the contact points of the coding pins and pressure chamber.
ð Please note: This cleaning process is particularly important. The area
around the contact points must be free of oxides and solder dross. Adher-
ent soiling can lead to leaks later on, after installation of the nozzle plate!
e) Use a perforated scoop (6) to remove the solder dross (7).
ð The process has now been completed.
Ersa GmbH Operating Instructions_VF335_en|Rev. 14|30/11/2017 413/695
8|Service and maintenance
Assembling the pump riser tube
WARNING
Danger of burning when immersing components into liquid solder!
ü When immersing cold components, there is a risk of burns due to spouting solder!
a) Immerse parts very slowly into solder!
b) Let parts rest for a few minutes before screwing them together.
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Fig.157: Assemble the pump riser tube and tighten the four screws (1).
ü To assemble the pump riser tube:
a) Risk of accident! Make sure that the screw connection between the dismant-
ling tool (3) and the inner pump riser tube is tight.
b) Carefully lift the inner pump riser tube using the dismantling tool (3) and very
slowly insert it into the outer riser tube.
c) Tighten all four screws (1) using a socket spanner.
d) Remove the dismantling aid (3) from the thread (2).
ð The process has now been completed.
Ersa GmbH Operating Instructions_VF335_en|Rev. 14|30/11/2017 414/695
8|Service and maintenance
Pouring solder in again
WARNING
Risk of death or severe injuries due to hot machine!
a) When manually topping up solder, liquid metal can splash out of the solder pot!
Solder manual top-up should always be carried out by trained personnel!
b) Wear safety shoes, face protection, protective gloves, safety apron!
ü Pour in the skimmed solder again until the desired solder level is reached.
ü The skimmed solder is cooled and completely solidified.
a) Very slowly place the solidified solder pieces into the solder bath one after the
other.
ð Risk of accident! Touching the hot solder surface is also forbidden with
protective gloves!
ð Always place only a small part of solid solder into the solder bath. Only
place the next small part into the bath when the previous part has com-
pletely melted.
ð Repeat the process until the desired solder level is reached.
ð The process has now been completed.
Ersa GmbH Operating Instructions_VF335_en|Rev. 14|30/11/2017 415/695