Section 7 − Maintenance &Troubleshooting; Routine Maintenance; Unit Overload; Changing Drive Roll And Wire Inlet Guide - Hobart IronMan 240 Owner's Manual

SECTION 7 − MAINTENANCE &TROUBLESHOOTING

7-1. Routine Maintenance

n = Check
* To be done by Factory Authorized Service Agent
Every
3
Months
l Unreadable Labels
Every
6
OR
Months
~ Inside Unit

7-2. Unit Overload

Thermistor RT1 in SCR1 protects the unit from damage due to overheating. If Over Temp light illuminates, output and wire feed will shut down. Wait for
unit to cool down allowing fan motor to run until Over Temp light turns off. If unit is cool and no weld output continues, contact Factory Authorized Service
Agent.

7-3. Changing Drive Roll and Wire Inlet Guide

Tools Needed:
7/16 in.
.
A complete Parts List is available at www.HobartWelders.com
Z = Change ~ = Clean
~ Weld Terminals
n Apply Light Coat Of Oil
Or Grease To Drive Motor
Shaft
2
1
3
!
Disconnect power
before maintaining.
l = Replace
nl Weld Cables
~ Clean Drive Rolls
4
.
Maintain more often
during severe conditions.
Reference
1 Securing Screw
2 Inlet Wire Guide
Loosen screw. Slide tip as close to
drive rolls as possible without
touching. Tighten screw.
3 Drive Roll
The drive roll consists of two
different sized grooves. The
stamped markings on the end
surface of the drive roll refers to the
groove on the opposite side of the
drive roll. The groove closest to the
motor shaft is the proper groove to
thread (see Section 5-12).
4 Drive Roll Securing Nut
Turn nut one click to secure drive
roll.
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