Porosity
Cause
Grease, varnish, rust or dirt on the workpieces to
be welded.
Solution
Clean the workpieces carefully before welding.
Cause
Grease, varnish, rust or dirt on the filler material.
Solution
Always use quality materials and products.
Keep the filler metal always in perfect condition.
Cause
Humidity in the filler metal.
Solution
Always use quality materials and products.
Keep the filler metal always in perfect condition.
Cause
Incorrect arc length.
Solution
Decrease the distance between the electrode and
the piece.
Cause
Humidity in the welding gas.
Solution
Always use quality materials and products.
Ensure the gas supply system is always in perfect
condition.
Cause
Insufficient shielding gas.
Solution
Adjust the gas flow.
Check that the diffuser and the gas nozzle of the
torch are in good condition.
Cause
The weld pool solidifies too quickly.
Solution
Decrease the travel speed while welding.
Pre-heat the workpieces to be welded.
Increase the welding current.
Hot cracks
Cause
Incorrect welding parameters.
Solution
Decrease the welding voltage.
Cause
Grease, varnish, rust or dirt on the workpieces to
be welded.
Solution
Clean the workpieces carefully before welding.
Cause
Grease, varnish, rust or dirt on the filler metal.
Solution
Always use quality materials and products.
Keep the filler metal always in perfect condition.
Cause
Incorrect welding mode.
Solution
Carry out the correct sequence of operations for
the type of joint to be welded.
Cold cracks
Cause
Humidity in the filler metal.
Solution
Always use quality materials and products.
Keep the filler metal always in perfect condition.
Cause
Particular geometry of the joint to be welded.
Solution
Pre-heat the pieces to be welded.
Carry out post-heating.
Carry out the correct sequence of operations for
the type of joint to be welded.
For any doubts and/or problems do not hesitate to contact
your nearest customer service centre.
137
Summary of Contents for Genesis 1700 AC/DC
Page 1: ...Genesis 1700 AC DC Genesis 2200 AC DC MANUALE DI RIPARAZIONE REPAIR MANUAL ...
Page 51: ...161 PFC S POWER COMPONENTS D11 IG1 IG2 D1 D7 CN3 M1 CN4 CN5 CN8 CN7 M2 CN6 ...
Page 52: ...162 PFC STAGE LEDS INDICATIONS PFC s POWER COMPONENTS L2 L1 IG1 IG2 D1 CN6 D7 D11 ...
Page 54: ...164 INVERTER STAGE CN3 M1 CN4 CN5 CN8 CN7 M2 Inverter IMS power module ...
Page 62: ...172 15 Remove pcb T3 PFC s POWER COMPONENTS IG1 IG2 D1 NTC1 Unscrew torque screw at 2 2N mt ...
Page 64: ...174 DIODES AND PFC IGBT ORIENTATION Landmark for assembling ...
Page 67: ...177 12 4 Thermic caps inverter side NTC1 T3 CN11 ...
Page 69: ...179 12 5 Thermic caps secondary side T1 T2 15 14 434 CN3 CN2 ...
Page 74: ...184 15 14 439 15 14 42901 L3 L4 L1 L2 ...
Page 75: ...185 Gas valve flow chart signal Pipe 38 39 ...
Page 79: ...189 CN6 15 14 415 CN3 15 14 431 FLAT A FLAT B Inverter commands Boost commands ...
Page 80: ...190 By pass relais flow chart Gas valve ELVI Fan M1 and M2 command signal ...
Page 81: ...191 HF command signal AC command signal Torch switch buttons signals ...
Page 88: ...198 HF pulse in TIG AC HF pulse in TIG DC ...
Page 114: ...224 GENESIS 2200 AC DC FP279 ...
Page 115: ...225 GENESIS 1700 AC DC FP216 ...
Page 116: ...226 GENESIS 2200 AC DC FP216 ...
Page 118: ...228 20 CONNETTORI CONNECTORS GENESIS 1700 AC DC FP279 GENESIS 2200 AC DC FP279 ...
Page 119: ...229 GENESIS 1700 AC DC FP216 GENESIS 2200 AC DC FP216 ...
Page 122: ...232 55 08 022 55 08 023 GENESIS 1700 AC DC FP216 GENESIS 2200 AC DC FP216 ...