Lincoln Electric 305D User Manual download pdf (Page 121)

TROUBLESHOOTING & REPAIR

F-67 F-67

RANGER 305D

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC

Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC

CHOPPER MODULE RESISTANCE TEST (continued)

(+) Lead (-) Lead

Diode Bias

and Expected

Test Result

B5 B6 6K to 9K

B6 B5 6K to 9K

B4 B5 200k or higher

B5 B4 400k or higher

B4 B6 200k or higher

B6 B4 400k or higher

B2 B3 6K to 9K

B3 B2 6K to 9K

B4 B2 200k or higher

B2 B4 400k or higher

B4 B3 200k or higher

B3 B4 400k or higher

TABLE F.2 – DIODE TEST TABLE

OHMMETER

READING

Chopper Terminal Connections

5. Reconnect all leads.

6. The chopper module screw connection should be lightened to 50-60 inch-pounds.

7. Perform the Case Cover Replacement procedure.

1 2 ... 116 117 118 119 120 121 122 123 124 125 126 ... 193 194

No comments

Lincoln Electric 305D User Manual Page 121