ESAB EPP-400 Manuel D'instructions page 302

section 6
PCB2
caution
3 2
Snubber Resistor
(ex. R9)
PCB3
failure to route leads properly can lead to failure of freewheeling
diodes.
2 3
Snubber Resistor
2 3
(ex. C18)
Freewheeling Diode
(ex. D6)
Red wire
View of freewheeling diodes and capacitor banks with bus
bars removed. (PCB2 and PCB3 are shown still in place)
Dressing of freewheeling diode snubber leads.
Red wire of snubber resistor must be routed under capacitor
self lead. Red wire terminal must have a minimum 3.2mm
(.125") clearance from the bus bar on diode terminal #2.
Bus bar connecting terminal No. 3 is not
shown for terminal clarity.
The red snubber leads are numbered as viewed from the
rear of the power source:
D1 - Left
D2 - Right
D3 - Left
Cover snubber capacitor self leads with Sleeving P/N
95193486.
302
troubleshootinG
note:
D4 - Right
D5 - Left
D6 - Right