.A complete Parts List is available at www.HobartWelders.com

6-3. Checking/Replacing Retaining Cup, Tip, And Electrode

Overtightening will strip threads. Do not overtighten retaining cup during assembly. Do not cross-thread parts causing stripping. Use care during torch assembly and parts replacement.

Inspect shield cup, tip, and electrode for wear before cutting or whenever cutting speed has been significantly reduced. Do not operate torch without a tip or electrode in place. Be sure to use genuine replacement parts.

A good practice is to replace both the tip and electrode at the same time.

Turn Off power source before checking torch parts.

Make sure this area is clean of any debris.

Make sure swirl ring is clean of any debris and no holes are obstructed.

4

3

New

8

7

6

2

1

5

New

1/32 in (1 mm) to 1/16 in (2 mm) maximum pit depth depending on acceptable cut quality

Worn

Worn

Ref. 803 224

Turn Off power source.

1Drag Shield

2Retaining Cup

Remove retaining cup. Check retaining cup

for cracks, and replace if necessary.

3 Tip

4 Opening

Remove tip. Check tip, and replace if open- ing is deformed or 50% oversize. If inside of tip is not clean and bright, clean with steel wool. Be sure to remove any pieces of steel wool afterwards.

5 Electrode

Check electrode. If center has a pit more than a 1/32 in (0.8 mm) deep, remove and replace electrode.

6 Swirl Ring

Remove swirl ring. Check ring, and replace if side holes are plugged.

7 O-Ring

Check O-rings on torch. If needed, coat with thin film of silicone lubricant (part no. 169 231). Replace if damaged.

8 Plunger Area

Check this area for any debris or foreign material. Clean out if necessary.

Carefully reassemble parts in reverse order.

OM-926 Page 24

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Image 28
Hobart Welding Products 625 manual Checking/Replacing Retaining Cup, Tip, And Electrode