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| ACCESSORIES | |||||
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To install a new contact tip proceed as follows: | K285 Installation to the K148 | |||||
1. | Clip the end of the electrode and inch it up until it is | 1. | Remove the tension on the center guide tube using | |||
| free of the tip. |
| a “C” clamp as shown in Figure C.8. Apply only | |||
2. | Remove the contact tip locking nut. |
| enough clamping force to relieve the tang pressure | |||
| from the contact tip. | |||||
3. Relieve the spring pressure of the contact tip against | 2. | Remove the contact tip clamping nut and the con- | ||||
| the steel tang in the hole of the contact tip. To do | |||||
| this, push the nozzle body so the steel tang is |
| tact tip. |
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| approximately centered in the 3/8” (9.5 mm) hole in |
| FIGURE C.8 | |||
| the contact tip. Under these conditions the contact |
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| tip can be easily removed from the nozzle body. |
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4 a. Before installing the new tip, make sure the |
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| threads and the bottom surface of the nozzle are |
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| clean and bright. These surfaces are current car- |
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| rying areas and must be clean. |
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| b. Push the nozzle body to one side to relieve the |
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| pressure and insert the new contact tip. |
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5. a. Check the locking ring threads making sure | 3. Remove the brass thread protecting collar and | |||||
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| they are free or any foreign material. A small | ||||
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| application of locally available high temperature |
| slide the dirt shield off of the nozzle. | ||
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| 4. Make sure that all the threads are clean and | ||||
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| these threads insure a longer thread life of the | ||||
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| two mating parts. |
| replace the collar, the contact tip and the clamping | ||
| b. Replace the locking ring and tighten securely. | 5. | nut and remove the “C” clamp. | |||
6. | Loosen the hose clamps of the K285 entirely, place | |||||
Check the contact tip to be certain it is tight in the |
| them around the nozzle and tighten them so that | ||||
| nozzle body. If the tip is not tight, arcing will take |
| the stationary part of the K285 covers the opening | |||
| place between the tip contact surface and the noz- |
| in the nozzle body | as shown in Figure C.9. | ||
| zle contact surface which will damage the nozzle | 6. | Position the moveable section to the desired flux | |||
| body. | |||||
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| 7. | height and tighten the wing nut. | |
K285 Concentric Flux Cone | Cut the flux hose to required length and connect as | |||||
The K285 Concentric Flux Cone is designed to fit on a |
| shown. |
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K148 (with or without the K149 attachment) or on a |
| FIGURE C.9 - K148 | ||||
K129 Tiny |
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deposits the flux so that it surrounds the electrode(s). |
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NOTE: If using a K149 extension, the electrical stick- |
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| out will be limited to 4” (102mm). |
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The K285 consists of two pieces that are electrically |
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| Wing Nut | |||
isolated from each other. The stationary segment is |
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clamped to the nozzle and the moveable portion |
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| Flux | |||
which supports the flux hose and the concentric cone |
| Clamps |
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allows for vertical adjustment of the flux cone. |
| Hose | Hose | |||
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Moveable
Section
Travel
Direction