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

Page 218

F-158

WATER COOLER REMOVAL AND REPLACEMENT

(continued)

FIGURE F.60 - WATER COOLER LOCATION

TROUBLESHOOTING & REPAIR

PROCEDURE

NOTE: These instructions may vary slightly

with later model coolers. See instruc-
tions included with cooler kit.

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, perform the
capacitor discharge proce-
dure to avoid electric shock.

7. After you have completed the capacitor dis-

charge procedure for all four switch boards,
use the 5/16" nut driver to remove the water
cooler access door. See Figure F.60 for
location.

8. With the 3/8" open end or socket wrench,

remove the two water cooler assembly
mounting screws. Slide the assembly to
the left to better access the circuit breaker,
which will be removed in a moment.

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

sheet metal screws holding the lower case
back panel.

POWER WAVE 450

WARNING

1. WATER COOLER ACCESS DOOR (ON

BACK PANEL)

2. WATER COOLING FITTINGS
3. CIRCUIT BREAKER