Routine Maintenance; Electrode Storage - Ryobi MMA-140 Owner's Operating Manual

WARNING. ELECTRIC SHOCK can kill.
Have an electrician install and service
this equipment.
Turn the input power off at the fuse box, disconnect
supply lines and allow machine to sit for five
minutes minimum to allow the power capacitors to
discharge before working inside this equipment.
Do not touch electrically hot parts.
WARNING. Do not open this machine
and do not introduce anything into its
openings. Power supply must be
disconnected from the machine before each
maintenance and service. After each repair,
perform proper tests to ensure safety.
CAUTION. The power supply must be
disconnected from the machine before
each maintenance and service. Always
use gloves in compliance with the safety
standards.

ROUTINE MAINTENANCE

The welder must be kept clean and dry at all times.
Use a dry cloth to clean the welder.
Keep the electrodes clean and dry and ensure all
cables are in good condition.
Keep the louvre passages clean to avoid a build up
of dirt and oxides inside the machine, which can
reduce machine output.
The nozzle will occasionally need to be cleaned of
spatter from welding. Clean it with a metal brush.
When the nozzle deteriorates or can no longer be
cleaned, it will need to be replaced. Unscrew the
nozzle and replace it with a new one.
Always try to avoid getting particles of metal inside
the machine since they could cause short circuits.
Periodically clean the inside of the welder with
compressed air, ensuring you wear a mask during
the operation.
Caution: Water must never come into contact with
the welder.
Regularly check the general condition of the tool.
Check for loose screws, misalignment or binding of
moving parts, cracked or broken parts, damaged
electrical wiring, and any other condition that may
affect its safe operation.
MAINTENANCE
If the supply cord requires replacing, the task must
be carried out by the manufacturer, the
manufacturer's agent, or an authorised service
centre to avoid a safety hazard.
WELDING MASK MAINTENANCE
Always maintain your welding mask in good
condition. If the clear glass protection lens be-
comes badly pitted, sufficient to interfere with vi-
sion, or cracked, have it replaced immediately.
NEVER use any dark filter lens other than that
provided by RYOBI, or one with the same certified
'Optical class' (degree of protection).
The shield should always be cleaned with a clean
soft cloth after use, ensuring the lenses are clean.
Remove any dust that may have accumulated and
store it in a safe place where it cannot be
damaged.
NEVER use a shield that is not in perfect condition.

ELECTRODE STORAGE

Electrodes should always be kept in a dry and
well-ventilated store. It is good practice to stack
packets of electrodes on wooden pallets or racks
well clear of the floor. Also, all unused electrodes
which are to be returned should be stored so they
are not exposed to damp conditions to regain
moisture. Good storage conditions are 10°C above
external air temperature. As the storage conditions
are to prevent moisture from condensing on the
electrodes, the electrode stores should be dry
rather that warm. Under these conditions and in
original packaging, electrode storage time is
practically unlimited. It should be noted that
electrodes are now available in hermetically sealed
packs which obviate the need for drying. However,
if necessary, any unused electrodes must be
redried according to manufacturer's instructions.
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