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

Page 219

F-159

WATER COOLER REMOVAL AND REPLACEMENT

(continued)

TROUBLESHOOTING & REPAIR

10. With the 9/16" open end wrench, remove

the circuit breaker.

11. Locate and disconnect plug J4, behind

the water cooler. Plug J 4, a large molex
plug, has two leads (H1A and H3A).
Double-check that these are the leads
feeding the plug; there is another large
molex plug in the same area that is not
connected to the water cooler.

12. Disconnect Plug 3, a small molex plug

with four leads. This plug is also located
behind the water cooler.

13. Slide out the water cooler assembly. Take

care not to damage the reservoir tank and
cooling coils.

14. If complete removal is required, with the

3/4" and 11/16" open end wrenches, dis-
connect the water cooler lines from the
machine back panel. Disconnect the
plastic strain relievers that hold the water
lines to the subframe.

If disassembly of the water cooler is required,
refer to the Water Cooler Disassembly
Procedure in this section of the manual.

15. To install the water cooler, slide the

assembly into the machine base. Make
sure the cooler fits under the retaining
clips. Connect the water lines to the back
panel and connect the plastic strain reliev-
ers where they hold the water lines to the
subframe.

16. Connect plugs 3 and 4, behind the water

cooler assembly.

17. Attach the circuit breaker. Use the 9/16"

open end wrench.

18. Install the two 5/16" sheet metal screws

that hold the lower case back panel.

19. Install the two 3/8" water cooler assembly

mounting screws.

20. Connect the water cooler lines to the back

panel using the 3/4" and 11/16" wrenches.

21. Set the tabs of the water cooler access

door in place and secure the door with the
two 5/16" screws.