Troubleshooting & repair, Warning – Lincoln Electric INVERTEC POWER WAVE 450 SVM112-B User Manual

Page 226

F-166

T2 AUXILIARY TRANSFORMER REMOVAL AND REPLACEMENT

(continued)

FIGURE F.62 - T2 AUXILIARY TRANSFORMER LOCATION

TROUBLESHOOTING & REPAIR

PROCEDURE

1. Remove main input supply power to the

machine.

2. With the 3/8" nut driver, remove the 4

screws that hold the handle to the machine.

3. Remove the rubber gasket (cover seal) from

the lift bail.

4. With the 5/16" nut driver, remove the sheet

metal screws from the case top.

5. With the 5/16" nut driver, remove the

screws holding the right and left case sides.
Remove the case sides by lifting up and
out.

6. Perform the Capacitor Discharge Proce-

dure described earlier in this section of the
manual.

Before continuing with the test procedure, per-
form the capacitor discharge procedure to
avoid electric shock.

7. After you have completed the capacitor

discharge procedure for all four switch
boards, proceed to remove the T2 auxil-
iary transformer. First you will have to
remove the water cooler; follow the Water
Cooler Removal and Replacement
Procedure in this section of the manual.

Disconnect the single molex plug
attached to the transformer. See Figure
F.62 for location.

9. The 3/8" nut driver or socket wrench,

remove the two screws that mount the trans-
former to the machine base. Remove the T2
auxiliary transformer.

10. To install the T2 auxiliary transformer,

carefully position it onto the machine base
and tighten the two mounting screws.
Connect the molex plug to its receptacle
on the transformer.

11. Install the water cooler. Refer to the

Water Cooler Removal and
Replacement Procedure in this section
of the manual.

12. Install the machine case sides and top.

13. Install the handle and the lift bail rubber

gasket.

POWER WAVE 450

WARNING

1. BASE
2. AUXILIARY TRANSFORMER T2
3. MOUNTING SCREW (2)