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Bridging occurs when excess solder shorts two adjacent pads, conductors or
leads.
XII.
TROUBLESHOOTING MACHINE
Failure
Corrective Measures
Solder does not melt
Check the circuit breaker, solid state relays
and heaters. If the circuit breaker is
tripped, turn it on. If the SSR is fused,
replace it. If the heater is burned, replace it.
Solder takes too long to melt
Check heater elements. Replace defective
one.
Pre-set temperature is
Check heater elements, replace defective
not achieved
one.
No solder wave
If solder is molten and has reached the
preset temperature, then check the solder
pump and motor.
Solder motor not running
Check voltage to the motor. Check the
relevant SSR and circuit breaker. Replace
the SSR and/or turn on the circuit breaker,
if tripped.
Check belt tension. Reduce belt tension if
too tight.
If motor is running with no solder wave
then motor pulley or pump pulley may be
loose. Tighten set screw.
Impeller escaped from
Remove the pump and reinstall impeller.
pump shaft
Low solder wave
Check solder level. Check for clogged
pump impeller fins. Dross or any other for-
eign objects such as components may
have fallen in solder. Remove pump and
clean the impeller fins. Check belt tension
and increase if too slack.
