Hobart Welding Products 140 Maintenance & Troubleshooting, Routine Maintenance, Disconnect power

Models: 140

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

SECTION 7 − MAINTENANCE & TROUBLESHOOTING

7-1. Routine Maintenance

 

 

 

 

 

 

 

 

Y Disconnect power

. Maintain more often

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

before maintaining.

during severe conditions.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

n = Check

Z = Change

~ = Clean

l = Replace

 

* To be done by Factory Authorized Service Agent

 

Every

 

 

 

 

3

 

 

 

 

Months

 

 

 

 

 

l Damaged Or Unreadable l Repair Or Replace

~ Clean And Tighten Weld

 

Labels

Cracked Weld Cable

Terminals

Every

OR

 

 

 

6

 

 

 

 

 

 

 

Months

 

 

 

 

~Inside Unit

Reference

7-2. Overload Protection

1

7-3. Drive Motor Protection

1 Supplementary Protector CB1

CB1 protects unit from overload. If CB1 opens, unit shuts down.

Reset supplementary protector.

802 441

Drive motor protection circuit protects drive motor from overload. If drive motor becomes inoperative, release gun trigger and wait until protection circuit resets allowing drive motor to feed wire again.

OM-925 Page 24

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Hobart Welding Products 140 Maintenance & Troubleshooting, Routine Maintenance, Overload Protection Drive Motor Protection