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F-59

TROUBLESHOOTING & REPAIR

F-59

 

 

OUTPUT DIODE ASSEMBLY REMOVAL AND REPLACEMENT

(MACHINE CODES BELOW 10150)

(continued)

LOCKING TABS

Figure F.18 Heatsink Removal

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10.Using the slot head screwdriver carefully disengage the output diode heat sink mounting bracket from the top center panel. Also dis- engage the bottom heat sink mounting bracket from the support bracket. This can be accomplished by lifting the locking tab and sliding the heat sink assembly towards the rear of the machine. See Figure F.18.

11.Carefully remove the output diode assembly from the V250-S.

12.Remove the two heat sink holders from the heat sink/diode assembly.

13.Assemble the two heat sink holders to the new heat sink/diode assem- bly.

14.Install the new output diode assem- bly into position and slide it towards the front of the machine until the locking tabs (both top and bottom) are engaged. See Figure F.18.

15.Install the two screws into the top rear case back. See Figure F.15.

16 Using the 7/16” wrench, bolt and washers connect the output cable to the diode heat sink. Be sure to take note of the small resistor connection at the same point. See Figure F.17.

17.Using the 7/16” wrench, bolts, nuts and washers assemble and tighten the two splices.

18.Using the 3/8” wrench and slot head screwdriver assemble and tighten the other two splices.

19.Position sleeving and secure with cable ties. Clear all leads and pre- pare unit for reassembly of wrap- around case.

INVERTEC V250-S

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Image 91
Lincoln Electric V250-S service manual Locking Tabs