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3. Ensure the microswitch is actually pressed and held for the duration of the
weld.
4. Ensure the thermal overload has
not been activated.
NOTE:
The thermal overload is a
protection device which
operates when the electrical
circuits have overheated. This
prevents the machine from
operating until it has cooled
down to satisfactory levels.
The device will operate if the
DUTY cycle has been
exceeded or if the ambient temperature becomes too high.
NEVER EXCEED THE DUTY CYCLE - See Specifications.
NOTE:
On model 13T, if the thermal overload has intervened, the two
lamps shown in Fig 7 will flash alternately.
MAINTENANCE
Frequency of maintenance operations depends on the operating conditions:
how intensively the welder is used, how clean or dirty the welding site is
(aggressive atmospheres, etc).
Before use, always inspect the welder, checking for security and cleanliness of
arms and electrodes to ensure they are in perfect condition. Ensure also that
the power cable is in perfect condition at all times.
As a general rule the power supply should be inspected internally at least
twice a year.
1. Access the inside of the machine by removing the screws securing the side
cover and carefully hinge the cover down.
2. Clean the transformer using a blast of dry compressed air with a
maximum
pressure of 10 bar.
NEVER direct the compressed air jet on to the circuit
boards
. These should be cleaned with a soft brush and vacuumed or
blown with air at very low pressure.
ALWAYS use a face mask for these
operations.
WARNING: ELECTRICITY CAN KILL. NEVER TOUCH LIVE ELECTRICAL
COMPONENTS. DISCONNECT THE POWER SUPPLY BEFORE ALL
INSPECTIONS AND MAINTENANCE OPERATIONS. BEWARE HOT
SURFACES......ALWAYS LET THE MACHINE COOL DOWN BEFORE
ACCESSING INTERNAL COMPONENTS.
Summary of Contents for CSW13T
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