Emerson 2000IW Maintenance Manual page 66

Table 4.4
Problem
Excessively warm
Converter-Booster-Horn
Stack with the following
conditions:
• occasional overload
alarms;
• in TEST mode POWER
BARGRAPH indication
higher than normal (IW/
IW+ 1100W above 20, IW/
IW+ 2200W above 15
Welder does not cycle
when you press both
START SWITCHES or
activate external START
switches.
NOTICE
4.3 Alarms
that lists descriptions and
solutions to alarms.
56
Weld Cycle Troubleshooting
Check Converter-Booster-
Horn Stack mating surfaces
for fretting corrosion. *
If your welder is subject to
high duty cycles, you may
need to increase horn
cooling.
EMERGENCY STOP (E-STOP)
switch open. Close E-STOP
switch.
Make sure you press both
START SWITCHES
simultaneously.
Adjust the PRESSURE
REGUALTOR.
Check the Solenoid Valve;
replace if faulty.
Verify that the DOWN SPEED
control valve is open.
contains a table
Inspect air tubing for
obstructions.
Check START SWITCHES
start circuit; repair or
replace faulty components.
Cause/Solution Refer to
Chapter 6: Repair
Local Branson
Representative
Chapter 3: Schematics
N/A
2000 IW/IW+ Operating
Manual
Chapter 3: Schematics
Chapter 5: Assembly/
Disassembly
Chapter 3: Schematics
Chapter 4:
Troubleshooting
Chapter 5: Assembly/
Disassembly
Chapter 3: Schematics
Chapter 5: Assembly/
Disassembly
2000 IW/IW+ Operator
Manual
1019567 REV. 03