Description Of The Apparatus - Cebora GRV 12 Manual De Instrucciones

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2.4

Description of the apparatus

A)
ON/OFF switch (I/O)
B)
Tank cap
C)
Slot for checking the coolant level
D)
Mains lead
E)
"Coolant pressure" protection connector
F)
Fuse holder
G)
Quick fittings for the torch cooling hoses. Cold water outlet. - Blue
Hot water inlet. - Red
H)
Quick fittings for the cooling hoses. Cold water outlet. - Blue. Hot water inlet. - Red
G
3
INSTALLATION
3.1
Setting up
Place the apparatus according to the instructions given in the manual of the machine with which it is to be used.
3.2
Installation
The unit must be installed by qualified personnel. All con- nections effected must comply with the current standards
and with the law on safety at work.
Before connecting up the mains lead, ensure that the hoses are already connected, the power supply voltage
corresponds to that indicated on the technical data plate, and the earth plug is efficient.
The cooling unit is supplied with approx. 4 litres of coolant. To fill the tank completely, unscrew the cap and top up
the fluid. Connect the welding torch and all the connection pipes. It is important to ensure that the cooling unit is
always turned off when topping up the fluid and connecting or disconnecting the pipes. Turn on the cooling unit
with switch (A), check for leaks and ensure that the fluid level is near the MAX level. It is important to keep the tank
constantly topped up to MAX level during use for maximum performance, checking the level through inspection slot
(C). The coolant used should consist of 70% distilled water and the remaining 30% ethylene glycol.
This mixture is used not only to keep the coolant fluid at low temperatures but also to
prevent limescale deposits due to hard water, which would affect system durability and in particular the proper
operation of the pump. A pressure switch on the delivery circuit safeguards the welding torch by monitoring the
coolant outlet pressure. When a pressure drop occurs due to lack of fluid or a blocked pump, the pressure switch
indicates the anomaly to the power source and the power source automatically stops welding, showing an error on
the wire feeder display. This anomaly is indicated on the display or by means of a warning light, depending on the
power source.
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C
B
D
A
F
E
H
3300948/C

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