14. preparing unit for tig welding – Miller Electric XMS 4000 User Manual

Page 27

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OM-224 043 Page 23

To select TIG welding process, proceed as

follows:
Follow safety precautions according to

Section 1.
Prepare unit according Section 3.
Connect torch to the WORK connector 3

and the gas pipe to the gas connector 5.
Using a cable with a proper adapter, con-

nect work clamp cable to the MIG gun con-

nector.
If using a water-cooled torch, connect input

coolant hose to blue quick connect fitting

and return coolant hose to red quick con-

nect fitting.

.

Check coolant level after attaching
torch coolant hoses and running cool-

er. Be sure coolant appears in upper

half of indicator. Add coolant if neces-

sary (see Section 3-9).

Turn unit On.
Allow time for unit to complete its start up

cycle.

Set TIG welding process using P3 push

button.
Purge air from torch gas hose using Torch

Trigger (Manual Purge).
Select trigger mode using P7 push button

(see Section 4-7).
Setting Initial And Final Amperage (only

in MENU FULL)
To set initial and final amperage, proceed

as follows:
Press P2 to enter SET UP menu.
Select MENU FULL on D1 and D2 (see

Section 4-9).
Use E1 to change D1 to IN−A.
D2 value is default setting of 20 A (range is

0 A to 350 A).
Use E2 to change D2 value.
This parameter allows starting the welding

process at a lower initial amperage setting.
Use E1 to change D1 to FI−A.
D2 value is default setting of 20 A (range is

0 A to 350 A).

Use E2 to change D2 value.
This parameter allows finishing the welding

process at a lower final amperage setting.
Setting Postflow (only in MENU FULL)
Select MENU FULL on D1 and D2 (see

Section 4-9).
Use E1 to change D1 to POSG.
D2 value is default setting of 0.1 second

(range is 0.0 seconds to 10.0 seconds).
Use E2 to change D2 value.
Setting Cooler Status (only in MENU

FULL)

.

To prevent damage to water-cooled
torch components, be sure that cool-

ant is turned on.

Select MENU FULL on D1 and D2 (see

Section 4-9).
Use E1 to change D1 to W−UN.
D2 value is default setting of ON.
Use E2 to change D2 value to OFF, if appli-

cable.

4-14. Preparing Unit For TIG Welding

4

6
7

2

5

3

P7

P3

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