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F-44

TROUBLESHOOTING & REPAIR

F-44

SWITCH

REMOVAL AND REPLACEMENT (continued)

FIGURE F.20 – SWITCH

Switch

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ON

PO

 

 

 

 

 

 

WER

 

 

 

 

 

 

 

GAS

PRESSURE

 

 

 

 

 

 

 

T

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HER

 

 

 

O

 

 

 

MAL

 

 

 

FF

PUR

 

SAFETY

 

 

 

 

 

 

GE

!

L

 

 

 

 

 

 

 

IN

C

 

 

 

 

 

 

E

OL

 

 

 

 

 

L

 

 

 

 

 

 

EC

N

 

 

 

 

 

 

TR

IC

 

 

 

 

 

 

 

 

 

PRO-

 

 

 

 

 

 

 

CUT

25

 

 

 

 

 

 

 

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PROCEDURE

1.Remove input power to PRO-CUT 25.

2.Remove carrying handle using a 4mm allen wrench.

3.Using a crescent wrench,

carefully remove the plastic nut from around the pressure regulator located on the top of the machine.

4.Using a 7mm nut driver, remove the case wraparound.

5.Perform Capacitor Discharge

Procedure.

6.Using a phillips head screwdriver, remove the two power switch mounting screws located directly above and below the power switch.

7.Carefully remove the power switch assembly from the front of the machine, making note of insulation positioning.

8.Carefully label and identify the four leads and their terminals before removing. These leads and their positions are not labeled for you, so be sure to label them accurately

9.After labeling the four leads, remove them from the switch using a flathead screwdriver.

10.After replacement of the switch, reconnect the four leads making sure that the switch is oriented correctly and the insulation is positioned correctly.

11.Replace the case wraparound

12.Replace the plastic nut from around the pressure regulator. Do Not Over tighten.

13.Replace the carry handle

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PRO-CUT 25

Page 78
Image 78
Lincoln Electric SVM149-A service manual Pro