© ESAB AB 1999
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5
OPERATION
General safety regulations for handling the equipment can be found on
page
. Read through before you start using the equipment!
Welding Gun PKB 250 and PKB 400
Before starting to use of a new welding gun, or after replacement of the motor, the
gun is to be operated at full air pressure for a short while.
This causes solidified oil and grease in the pneumatic motor to be dissolved, and
ensures uninterrupted service.
6
MAINTENANCE
CAUTION
All guarantee undertakings from the supplier cease to apply if the customer attempts any
work to rectify any faults in the product during the guarantee period.
6.1
Daily or as necessary
Nozzles
S
Remove the gas nozzle.
S
Clean the gas nozzle, the
intermediate nozzle and the contact
nozzle of welding spatter so that the
shielding gas can flow freely and the risk of short-circuiting
is eliminated.
S
Check the gas nozzle for damage and wear. Replace the nozzle if damaged or
worn.
S
Select a contact nozzle according to the diameter of the wire.
S
Assemble the parts.
S
Spray with welding spray obliquely into the gas nozzle from two directions.
S
NB.
Never spray straight into the nozzle.
Pneumatic Motor
The motor is provided with an oil nipple for its lubrication.
S
Lubricate the motor once a week (normal
operation) using the lubrication gun supplied
with the welding gun.
S
Use oil, see accessories, page 19.
Feed Unit
S
Take out and clean the feed unit of the gun as
necessary.
S
Lubricate the feed unit with some drops of oil.
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