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F-159

F-159

TROUBLESHOOTING & REPAIR

WATER COOLER REMOVAL AND REPLACEMENT (continued)

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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.

22.Install the machine case sides and top.

23.Install the handle and the lift bail rubber gasket.

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POWER WAVE 450

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Lincoln Electric SVM112-B service manual 159