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| ACCESSORIES | ||||
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K226 CONTACT ASSEMBLY | Maintenance | - Rusty or dirty wire and/or exces- | |||
The K226 assemblies are used for welding at currents | sively high welding currents increase wear on the | ||||
contact jaws. When arcing occurs or the elec- | |||||
from 600 to 1000 amps. | trode becomes loose in the jaws, remove the | ||||
Model | - (2 tapered jaws) | jaws and ʻdressʼ them with a file. When neces- | |||
| 3/32” and 1/8” (2.4 and 3.2mm) electrode | sary, the jaw inserts should be replaced. | |||
Model | NOTE: Units made prior to 1979 did not have | ||||
| 1/8” thru 7/32” (3.2 - 5.6mm) electrode |
| inserts. The replacement jaws will have | ||
Installation - | Remove the two nozzle mounting |
| them. |
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clamps from the wire drive. Insert the outgoing | The contact jaws must be kept in line with the | ||||
wire guide from the wire feed head into the top of | wire guide. Align the jaws as follows: (See Figure | ||||
the K226 and install the assembly in position on | C.3) |
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the bottom of the wire feed head. Use the two | 1. | Loosen the stationary contact jaw screws. | |||
screws provided with the K226 to attach it to the | |||||
wire drive. See Figure C.3. | 2. | Release the tension on the moveable jaw by | |||
NOTE: Removing the 4 screws that hold the noz- |
| loosening the screws holding the spring. | |||
| zle body to the mounting block allows the | 3 | Place a straight 14” (or longer) piece of bare | ||
| nozzle to be rotated to any of four posi- | ||||
| tions 90° apart. See Figure C.3. |
| 5/32” (4.0mm) wire through the wire guide | ||
Connect two (2) electrode cables to the contact |
| and into the drive rolls of the feed head. | |||
jaws (one under each | 4. Adjust the stationary contact so the wire | ||||
the cable lugs are flat against the copper and |
| touches the jaw at the center of the groove | |||
tighten the nuts securely. See Figure C.3. | 5. | for the entire length of the jaw. | |||
Slip the rubber flux hose that comes with the | Tighten the screws, remove the wire and re- | ||||
K226 on to the flux hopper valve. Fit the copper |
| tighten the screws holding the spring to | |||
tube into the other end and place it in the clip on |
| apply tension to the moveable jaw. The | |||
the lower jaw assembly. See Figure C.3. |
| moveable jaw should move freely when fin- | |||
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| ished. |
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FIGURE C.3 - K226 CONTACT NOZZLE ASSEMBLY
Use to Mount to Wire Drive
Remove(4)
Screws to
Rotate Nozzle
Attach Weld Cables Here
| Stationary |
Spring | Contact |
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Moveable |
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Contact |
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Flux | |
Only | Hose |
Copper Tube
WORK NOZZLE
TRAVEL TRAVEL