MK Products CobraMig 260 PS/Feeder - Manual (Page 26)

CobraMig 260 Owner's Manual - Page 20
FLOW CHART
TROUBLE:
No wire feed at torch, feeder not operating, ie. No slave motor or brake solenoid action.
CAUSE:
(F3) 2 amp Fuse on Main P.C. board on wire feeder.
(F1) 4 amp Fuse on Main P.C. board on wire feeder.
Micro Switch defective / Not being activated.
Broken electrical cable.
Transformer relay, Relay K2 inoperative.
Loose J2, J3, Cobra I Main P.C. board connections.
START
NO YES
YES NO
1 1
SYMPTOM
NO WIRE FEED AT TORCH, FEEDER NOT OPERATING
PROBLEM AREA
COBRA I: MAIN BOARD, K2 RELAY
TORCH: MOTOR, CABLE, MICRO SWITCH, SLAVE MOTOR, BRAKE SOLENOID
BRAKE SOLENOID OR
SLAVE MOTOR DEFECTIVE
GO TO FLOW CHART #4
COBRA I MAIN BOARD, F1 AND
F3 FUSES ARE OK BUT WIRE
FEED AND TORCH NOT
OPERATING GO TO FLOW CHART # 3
COBRA I MAIN BOARD, F1
FUSE IS BLOWN GO TO FLOW CHART # 2
COBRA I MAIN BOARD, F3
FUSE IS BLOWN
MICRO SWITCH, TRANSFORMER
RELAY, OR K2 RELAY ON COBRA
I MAIN BOARD IS DEFECTIVE OR
LOOSE J2, J3 ON COBRA I PC BOARD
MOTOR LEADS
SHORTED OR TORCH
MOTOR IS DEFECTIVE
IS COBRA I MAIN
BOARD F3 FUSE OK?
IS COBRA I MAIN
BOARD F1 FUSE OK?