8
Post-operation Maintenance
To ensure a long service life, always per-
form the following maintenance procedures
immediately after using the HAKKO 474
unit.
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)
l
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.
n
Remove all solder from the inside of the nozzle and heating element.
n
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.
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
Troubleshooting Guide
WARNING : If the power cord is damaged, it must be replaced by the
manufacturer, its service agent or similarity qualified person
in order to avoid personal injury or damage to the unit.
l
Power lamp does not light up.
• Is the power cord plugged in correctly.
Securely insert the power cord into the power supply.
• Is the fuse blown?
Determine why the fuse blew and eliminate the cause, then replace
the fuse.
Example Is the inside of the gun short-circuited?
l
Pump does not operate.
• Is the cord assembly properly connected?
Reconnect the cord assembly. (refer to p.4)
• Is the nozzle or hole in the heating element clogged?
Clean it. (refer to p.9)
l
Solder is not being absorbed.
• Is the spring filter full of solder?
Replace it with a new one. (refer to p.10)
• Is the ceramic filter hardened?
Replace it with a new one .
• Is there a vacuum leak?
Check the connections and replace any worn parts. (refer to p.8)
l
The nozzle does not heat up.
• Is the desoldering gun cord assembly properly connected?
Reconnect it. (refer to p.4)
• Is the heating element damaged?
Replace it. (refer to p.12)
NOTE : When repairs are needed, please send both the desoldering gun
and the station to your sales agent.
English
Summary of Contents for 474
Page 19: ...3 18 1 2 M4 25 380 480 HAKKO...
Page 21: ...20 5 B1094 B1095 HAKKO 474 1 M4 25 2 3 4 IRON VACUUM...
Page 22: ...21 1 2 1 2 5 6 3 5 3 1 HAKKO 191 HAKKO 192 HAKKO 474 380 480 1 2 3 4 5 6...
Page 23: ...22 2 3 4 5...
Page 24: ...23 1 HAKKO 475 HAKKO 475 HAKKO 475 2 1 3 3 2 1 A B A 70 80 25 25 5 25...
Page 25: ...24 HAKKO 474 B 25_26 20 25 26 24 20 28 a b c d e f...
Page 26: ...6 25 HAKKO 474 1 2 3...
Page 27: ...26 6 A1033 A1033 4 A1033 5...
Page 28: ...27 1 A1009 2 1 2 3 A1009 S20 6 VACUUM...
Page 29: ...28 7 23 2 4 1 2 3 4 24V 50W 5 1 3 CAL 380 CAL...