Tweco 51 with SL100SV CutMaster User Manual

Page 81

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Manual 0-4640

5-17

SERVICE

5

G. Gas continues to flow with RUN / RAPID AUTO RESTART / SET switch in RUN position.

1. Damaged gas solenoid.

a. Turn the front panel ON/OFF switch to OFF.

• If gas continues to flow, debris from the air line is preventing the solenoid from closing. Clean or replace the solenoid.

2. Faulty RUN / RAPID AUTO RESTART / SET switch.

a. Put switch in SET position. Disconnect wire harness connector from Main PC Board receptacle J18. Check continuity

through wire harness sockets 7 and 8. If no continuity, replace switch.

Art #A-03751

Fuse

(F1)

E1

E2

E3

E12

E11

E22

E35

E4

E13

E15

E16

E5

E20

E7

E19

E8

E21

E18

E10

E9

J1

J2

J5

J9

J3

J23

J4

J22

TP5

TP1

E23

E25

E26

E24

E28

E31

E32

E28

E30

E29

E33

TP13

IGBT

E38

E40

E39

E41

Output

Diode

E6

E27

E37

E43

E42

E36

E17

J21

E34

J20

E14

J26

J8

LT1

J18

J19

TP2

TP10

TP18

TP14

Main Printed Circuit Board Layout

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