ESAB Cigweld EasyWeld 160, Operating Manual

Page: 71 / 84

EasyWeld / HandyWeld 160
0-5617 7-1 SERVICE
SECTION 7:
ROUTINE SERVICE REQUIREMENTS AND POWER SOURCE
PROBLEMS
7.01 Routine Maintenance &
Inspection
WARNING
There are extremely dangerous voltage and
power levels present inside this product. Do
not attempt to open or repair unless you are a
qualified electrical tradesperson. Disconnect the
Welding Power Source from the Mains Supply
Voltage before disassembling.
Welding equipment should be regularly checked by a
qualified electrical tradesperson to ensure that:
• The main earth wire of the electrical installation
is intact.
• Power point for the Welding Power Source is
effectively earthed and of adequate current rat-
ing.
• Plugs and cord extension sockets are correctly
wired.
• Flexible cord is of the 3-core tough rubber or
plastic sheathed type of adequate rating, cor-
rectly connected and in good condition.
• Welding terminals are shrouded to prevent
inadvertent contact or short circuit.
• The frame of the Welding Power Source is ef-
fectively earthed.
• Welding leads and electrode holder are in good
condition.
• The Welding Power Source is clean internally,
especially from metal filing, slag, and loose ma-
terial. If any parts are damaged for any reason,
replacement is recommended.
7.02 Cleaning the Welding Power
Source
WARNING
There are extremely dangerous voltage and
power levels present inside this product. Do
not attempt to open or repair unless you are a
qualified electrical tradesperson. Disconnect the
Welding Power Source from the Mains Supply
Voltage before disassembling.
To clean the Welding Power Source, open the en-
closure and use a vacuum cleaner to remove any
accumulated dirt, metal filings, slag and loose mate-
rial. Keep the shunt and lead screw surfaces clean as
accumulated foreign material may reduce the welders
output welding current.
!!
CAUTION
Do not use compressed air to clean the Welding
Power Source. Compressed air can force metal
particles to lodge between live electrical parts
and earthed metal parts within the Welding
Power Source. This may result in arcing between
this parts and their eventual failure.
7.03 Cleaning the Feed Rolls
Clean the grooves in the drive rolls frequently. This
can be done by using a small wire brush. Also wipe
off or clean the grooves on the upper feed roll. After
cleaning, tighten the feed roll retaining knobs.
7.04 Basic Troubleshooting
WARNING
There are extremely dangerous voltage and
power levels present inside this product. Do not
attempt to open or repair unless you are a quali-
fied electrical tradesperson and you have had
training in power measurements and trouble-
shooting techniques.
If major complex subassemblies are faulty, then the
Welding Power Source must be returned to an Ac-
credited CIGWELD Service Agent for repair.
The basic level of troubleshooting is that which can be
performed without special equipment or knowledge.