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K148 CONTACT NOZZLE AND K149 | 7. | Slide the center guide (G) up out of the pivot body | |||
LONG STICKOUT EXTENSION | 8. | until the tang is above the window. |
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This nozzle is available in three models and can be | Place the | ||||
used for Innershield® or submerged arc processes. |
| window, and then lower the center guide tube (G) | |||
9. | back down to its original position. |
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Line up the spot at the top of the center guide tube | |||||
| - For 5/32” and3/16” (4.0 - 4.8mm) wire. |
| (G) with the 3/8” (9.5 mm) tapped hole in the upper | ||
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| pivot block (A) and put the 3/8” (9.5 mm) set screw | ||
| (C) back into the hole and tighten securely. |
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FIG. C.4 - TYPICAL CONFIGURATIONS
Current Ratings
A. InnershieldWithout LincWelding:-Fill Attachment
600 amps, 100% duty, no water cooling
1100 amps, 100% duty, with water cooling Submerged arc welding:
1100 amps, 100% duty, no water cooling
B. InnershieldWith K149
1100 amps, 100% duty, no water cooling
Water Cooling Attachment
When using currents over 600 amperes at high duty cycles water cooling always increases contact tip life. The cooling attachment, Part No. T12928 must be ordered seperately. Installation instructions are includ- ed in the kit. Connect the attachment to the water sup- ply and the drain with rubber tubing obtained locally. Water flow should be between 1/2 to 1 gallon (1.9 to 3.8L) of tap water per minute.
K149 Installation (See Figure C.5)
1. Install the K149 attachment before mounting the
K148 nozzle on the welder.
2. Place a small
3. Remove the 3/8” (9.5 mm) set screw (C) in the body (A).
4. Remove the contact tip clamping nut (D) and the contact tip.
5. Remove the brass thread protecting collar (E).
6. Remove the dirt shield (F) from the barrel of the nozzle.
K 148K 148
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| Cooling | K 148 & K 149 | |||||
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FIG. C.5 - K149 INSTALLATION | ||||||||||||
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B
F |
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G | H |
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E |
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D |
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10
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