Clarke 90EN Specifications download pdf (Page 21)

Models 90EN, 1010EN and 105EN are provided with two, 2-position switches

marked 1- 2 and MAX - MIN respectively, as shown in Fig 10. Model 150EN is

provided with three 2-position switches, marked A-1, 2-3 and MAX-MIN.

These controls areused to control the welding current according to the type and

thickness ofmaterial to be welded, and in accordance with the charts shown in

the‘Reference Tables’ on pages 26-28. Set the switches accordingly, and fine tune

the controls as descriibed under ‘Operation’, to produce a satisfactory weld.

C. Trim the Welding Wire

Trim the welding wire so that it protrudes no more than 5mm from the end of the shroud.

D. Attach the Earth Lead & Clamp

1. NO-GAS WELDING

For NO-GAS welding to take place, the earth cable MUST be connected to the

POSITIVE terminal , and the torch lead to the NEGATIVE terminal, as shown in FIG. 11

2. GAS WELDING

For GAS welding to take place, the earth cable MUST be connected to the

NEGATIVE terminal , and the torch lead to the POSITIVE terminal, i.e. in reverse to

that shown in Fig.11 above.

Attach the earth lead to the workpiece with the earth clamp,

as close to the

point of weld as possible

, without it being intrusive.

Ensure there is good contact, if necessary, clean the area with a wire brush

beforehand....Remember, the contact MUST be on bare metal - thoroughly clean.

IMPORTANT

The machine is set up at the factory for use with Flux Cored Welding

Wire.... i.e. NO-GAS WELDING.

Fig.11

Your welder is now fully prepared for welding.

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Clarke 90EN Specifications Page 21