Lincoln Electric IM10110 IDEALARC R3R-400 - Manual (Page 11)

D-1 MAINTENANCE D-1
ELECTRIC SHOCK can kill.
• Have an electrician install and ser-
vice this equipment.
• Turn the input power off at the fuse
box before working on equipment.
• Do not touch electrically hot parts.
GENERAL MAINTENANCE
1. The fan motor has sealed bearings which require no
service.
2. In extremely dusty locations, dirt may clog the air
channels causing the welder to run hot. Blow out
the welder at regular intervals. The side panels can
be removed even when the machines are stacked.
POWER RECTIFIER REPLACEMENT
Refer to the troubleshooting section “Power Rectifier
Bridge Assembly Checking Procedure” if a rectifier fail-
ure is suspected.
NOTE: Since proper material and correct assembly
procedures are critical, field disassembly of the power
rectifier bridge sections can do more harm than good.
Return a defective rectifier bridge section (or the entire
bridge) to the factory for repairs.
IDEALARC ® R3R-400
WARNING