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Section 5 − installation, 1. installing welding gun, 2. installing work clamp – Hobart Welding Products HANDLER 140 OM-925 User Manual

Page 18

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

OM-925 Page 14

SECTION 5 − INSTALLATION

5-1. Installing Welding Gun

803 711-A

1

Drive Assembly

2

Gun Securing Thumbscrew

3

Gun End

Loosen thumbscrew. Insert end of

gun through opening in front

panel until it bottoms against

drive assembly. Tighten

thumbscrew.
Welding gun must be inserted

completely to prevent leakage of

shielding gas.
4

Gun Trigger Leads

Insert leads, one at a time, through

gun opening on front panel.

Connect female friction terminals to

matching male terminals in unit.

Polarity is not important.
Close door.

4

1

2

3

Correct

Incorrect

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Be sure that gun end is tight
against drive assembly.

3

Gun Fully Seated

3

Gun Not Seated

Exposed O-rings

will cause shielding

gas leakage.

5-2. Installing Work Clamp

1

Nut

2

Work Cable From Unit

3

Work Clamp

4

Screw

5

Work Clamp Tabs

Bend tabs around work cable.
6

Insulating Sleeves

Slide one insulating sleeve over

work cable before connecting to

clamp.
Slide both insulating sleeves over

handles.

802 456-A

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Connection hardware must be tightened with proper tools. Do not just
hand tighten hardware. A loose electrical connection will cause poor weld

performance and excessive heating of the work clamp.

Tools Needed:

7/16 in

7/16 in

1

2

3

4

5

6

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