ESAB Slope Resistor Kit Installation guide

Brand: ESAB

Model: Slope Resistor Kit

Type: Installation guide

SLOPE RESISTOR KIT

P/N 37412 for 482 & 582cv Power Sources and

P/N 0558001456 for 353 & 453cv Power Sources

F15-498-A

December, 2004

Be sure this information reaches the operator.

You can get extra copies through your supplier.

Slope Kit Items

1 ea.--Slope Resistor Assembly

1 ea.--Plastic Snap Bushing

1 ea.-- Wiring Harness

6 ea.-- Wire Ties (2 large, 4 small)

2 ea.-- Adhesive wire tie holders

Figure 1

7 cm

10 cm

Installation Instructions

Before installing this kit, make sure all pri-

mary input power to the power source is

disconnected and/or lock out procedures

are in place.

WARNING

Installation Procedure

1. Remove all power to unit.

2. Unscrew 4 top assembly screws and remove

power source top. Unscrew 8 side assembly

screws and remove left side panel.

3. Drill a 17 mm hole 7 cm from side and 10 cm

from base on the rear panel of the power sup

ply. Insert plastic snap bushing into drilled

hole. ( See Figure 1)

37412

Shown

Note

37412 information provided for service only.

Assembly is no longer available.

4. One end of the wiring harness has two female

amp connectors . Connect these two female

amp connectors to the thermostat attached

to the slope resistor. Pull the other end of the

harness through the new snap bushing .

(See Figure 2)

Figure 2

6. Locate the two white wires (thermostat leads)

coming out of the top of the transformer left

winding (these wires have heat resistant insula-

tion). (See Figure 3A)

5. Run the wire to the front of the main trans

fromer. Pull the harness end up behind the

transformer support bracket. (See Figure 3)

Figure 3

Figure 3A

7. Cut the wire tie holding the connectors together and disconnect the connector between the red and white

wire. Connect the Slope Resistor wire harness connectors to the connectors that were just disconnected.

This will place the new slope resistor thermostat in series with the transformer thermostat. In order for the

control circuit to operate, all thermostats must be linked together as stated above. (See Figure 4)

Figure 4

8. On power source rear panel, remove assembly screw above fan and loosen assembly screws on sides of and

below fan. Place slope resistor assembly on back of power supply. Replace and tighten assembly screws.

(See Figure 5)

Figure 5

Wire harness

from Slope Kit

Red Wire

White Wire

Screw

Operation and Cable Connection

The slope kit is rated up to 400 amps and is not recommended for use above 400 amps. Disconnect the slope

resistor assembly if welding above 400 amps. Connect the male twist lock connector or lugged cable of the Slope

Resistor Assembly to the positive (+) terminal for the power source. Connect the wire feeder welding cable to

the female twist lock connector or 1/2” stud of the Slope Resistor Assembly.

Attach wire tie

holders to base

Tie wrap harness to

“A” Frame

9. Pull excess wire harness wire through snap bushing and toward front of power source. Attach adhesive wire

tie holders to power source base as shown and tie wrap wire harness to holders. Tie wrap any excess wire to

the exisiting wire harness. (See Figure 6)

Figure 6

Replacement Parts for Slope Assembly Kit 37412

Replacement Parts for Slope Assembly Kit 0558001456

F15-498-A 12 / 2004 Printed in U.S.A.

Replacement Parts for Slope Assembly Kit 0558001456

ESAB Slope Resistor Kit Installation guide

ESAB Slope Resistor Kit Installation guide

ESAB Slope Resistor Kit Installation guide

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