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B1028 View Datasheet(PDF) - Unspecified

Part Name
Description
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B1028
ETC1
Unspecified ETC1
B1028 Datasheet PDF : 24 Pages
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Problems during Desoldering
A. The solder in the junction is
not sufficiently melted.
B. Suction power is dropping.
Post-operation Maintenance
To ensure a long service life, always
perform the following maintenance
procedures immediately after using
the HAKKO 475 unit.
A. The solder in the junction is not sufficiently melted.
Temperature is not high enough
The following parts require a greater heat capacity to desol-
der.
• Multilayer P.W.B.s, power supplies, ground planes in
through-hole P.W.B.s, high-capacity transistors, triacs
with heat radiation fins, tuner P.W.B. ground wires, and
large-scale transformer terminals.
Use a preheating oven or heating gun to heat the P.W.B. to a
temperature that wonʼt damage the board or its components
[between 70°C (160°F) and 80°C (180°F)], then desolder. Do
not increase the temperature of the gun by recalibration as this
may damage the P.W.B. and its components.
Nozzle is worn out.
• When the nozzle begins to wear out, the heating effi-
ciency begins to decline. Check the nozzle. If the solder
plating is damaged, or the nozzle is eroded, replace the
nozzle. (refer to p.12)
B. Suction power is dropping.
• Replace the filters, and clean the nozzle and the inside of
the heating element, (refer to p.12 to p.16, Maintenance
of Desoldering Gun and Station)
Air is leaking from the vacuum system.
Air leakage cannot be determined from the indicator.
Check the air-tightness of the following parts and replace
any that are worn.
a. Contact point of the nozzle
and heating element
b. Front holder and nearby
parts
c. O-ring in the back holder
d. Hose
e. Vacuum outlet cap
f. Packing and nearby parts
The air pressure is low.
Check the air pressure and connections. (refer to p.6)
Remove all solder from the inside of the nozzle and heat-
ing element.
Clean the tip of the nozzle with the cleaning sponge,
then coat the tip with a fresh layer of solder to protect the
solder plating.
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