A-9

INSTALLATION

A-9

 

 

 

WIRE FEED SHUT DOWN CIRCUIT

The wire feed shut down circuit is used to stop the wire feed in the event of a fault. The most common use of the circuit is with water cooled guns. A flow sensor is connected to the circuit to protect the weld- ing gun if the water flow is interrupted.

The Power Feed™ 10M Single Wire Feeder has two leads, 570A and 570B, located inside the wire drive that are electrically common. If flow switch is used, separate these leads and connect to normally closed flow switch terminals when water is flowing. Connect the flow sensor to these two leads.

CHANGING THE GEAR RATIO

The Power Feed™ 10M Single Wire Feeder wire drive may be configured for either low speed or high speed, depending upon the application. The wire feeders are factory assembled for low speed operation and include a gear for high speed operation.

 

 

 

 

 

 

 

 

 

Gear

Purpose:

 

 

Wire Size

 

Speed

Ratio

 

 

 

Solid

 

 

 

 

 

 

Core

 

Best

for

most

 

 

 

 

 

 

GMAW and FCAW

 

 

 

 

 

 

welding. The low

 

 

 

 

 

Low Speed

speed gear ratio

50-800 ipm

.025-3/32 in.

.035 - .120 in.

provides the most

(1.27-20.3 m/m)

(0.6 - 2.4 mm)

(0.9 - 3.0 mm)

 

force for pushing

 

 

 

 

 

 

 

wires through long

 

 

 

 

 

 

guns

or pulling

 

 

 

 

 

 

wire through con-

 

 

 

 

 

 

duits.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Suitable only for

 

 

 

 

 

 

small

diameter

 

 

 

 

 

High Speed

wires operating at

75-1200 ipm

.025-1/16 in

.035 - 5/64 in.

high

wire

feed

(2.03-30.5 m/m)

.(0.6 - 1.6 mm)

(0.9 - 2.0 mm)

 

speeds. Feeding

 

 

 

 

 

 

force is less.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FIGURE A.6

ITEM

DESCRIPTION

1Gear.

2Screw holding feed plate to wire feeder.

3 Low speed position, screw holding feed plate to wire feeder.

4 High speed position, screw holding feed plate to wire feeder.

To change the gear ratio:

1.Turn off power at the welding power source.

2.Open the wire drive door.

3.Use a 3/16" Allen wrench to remove the screws holding the feed plate to the wire feeder.

4.Use a Phillips screwdriver to remove the screw and washers holding the gear to the shaft.

5.Remove the gear.

6.Lightly cover the shaft with engine oil or equivalent. Install the desired gear onto the shaft.

7.Reassemble the screw and washers securing the gear to the shaft.

8.Reassemble the screws in the appropriate position for holding the feed plate to the wire feeder.

POWER FEED™ 10M SINGLE WIRE FEEDER

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Image 17
Lincoln Electric IM827-D manual Wire Feed Shut Down Circuit, Changing the Gear Ratio, To change the gear ratio