Routine Maintenance; Troubleshooting - Hobart Welding Products HR200 Owner's Manual

5-3.

Routine Maintenance

Complete Parts List is available at www.MillerWelds.com
Disconnect power before maintaining.
�
Maintain more often during severe conditions.
� = Check
Every 3
Every
Months
3
! Disconnect power
Months
before maintaining.
= Clean = Replace
� Unreadable Labels
Every
3
Months
� � Cords
Weld Cables
Every 6
Months 6-1. Blowing Out Inside of Unit
� Drive Rolls
Weld Connections
*To be done by factory authorized service agent.
5-4.

Troubleshooting

Trouble
Wire does not feed; wire is not ener-
gized; wire feeds unevenly.
Weld Porosity
1
.Wire feeding stops or does not feed
properly during welding.
SECTION 6
◇ = Change
Maintain more often
during severe conditions.
Labels
� Weld Terminals
1/2 in.
(13 mm)
� � Gun Cables
Gun Cables
� Inside Unit
Tighten Weld Cable
Connections
Check contact tip. Check for kinks in gun cable and liner.
Check gun trigger plug connection at welding power source/wire feeder.
Check, and if necessary, replace gun trigger switch (see section 5-2).
Check contact tip. Check for kinks in gun cable. Blow out liner and gun casing. (see Section 5-1).
1 Supplementary Protector CB1
Remove weld spatter buildup in nozzle.
CB1 protects feeder interface from
overload. If CB1 opens, unit shuts
Check O-rings on gun connector and replace if damaged.
down.
Make sure inner head tube is tight in cable connector
Reset supplementary protector.
Check gun connector to be sure it is fully inserted into drive assembly.
Check shielding gas flow/supply.
Straighten gun cable and/or replace damaged parts (see Section 5-2).
Adjust drive roll pressure (see wire feeder manual).
Change to proper drive roll groove (see wire feeder manual).
Readjust hub tension (see wire feeder manual).
Clean or replace liner if dirty or plugged (see Section 5-1).
Replace drive roll or pressure bearing if worn or slipping (see wire feeder manual)
A complete Parts List is available at www.MillerWelds.com
MAINTENANCE AND TROUBLESHOOTIN
� = Clean
Reference
� Damaged Gas Hose
Remedy
283237-B
� = Replace
Weld Terminals
� � Weld Cables
OM-249336 Page 1
OM-286182 Page 9