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| ACCESSORIES | ||||
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10. | Line up the lower spot in the center guide tube (G) | Operation |
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| with the 3/8” (9.5 mm) set screw (H) and tighten the | The same contact tip, S13763, is used for 3/32” (2.4 | |||
| screw securely. |
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11. | Replace the brass thread protecting collar (E). It is | mm) through 3/16” (4.8 mm) diameter electrodes. | |||
S16388 is used for .062 (1.6 mm) and 5/64 (2.0 mm) | |||||
| important that this protecting collar be pulled up | electrode. |
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| against its locating shoulder, otherwise the tip lock- |
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12. | ing nut will not clamp the tip securely. |
| Loading of Wire |
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Replace the contact tip and its clamping nut (D) |
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13. | and tighten securely. |
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Assemble the proper combination of extension |
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| guides (Items 12, 13 and 14) with locking nut (Item |
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14. | 11) for the welding procedure to be used. |
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For Submerged Arc welding, screw the flux hose |
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| clamp (Item 10) onto the extension housing. |
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K148 Nozzle Installation
To install the nozzle on the head, insert the outgoing wire guide from the head into the nozzle assembly. Place the combined assembly in position on the bottom of the wire feed roll box. Clamp it in place using the two clamps supplied with the head.
Before pulling the clamps up tight the nozzle must be positioned relative to the travel direction as shown in Figure C.6. This position is set so accidental contact between the work and the nozzle will not compress the contact pressure spring. If positioned otherwise, such accidental contact may cause arcing inside the contact tip.
After the nozzle is positioned in the proper relationship with the travel direction, the connector tab for the elec- trode cables can be moved to any of four positions 90 degrees apart. To change the tab, remove the two 1/4- 20 hex head screws. ap the connector tab to loosen it from the tapered collar on the nozzle body. Turn the tab to the desired position. Replace and tighten the
FIGURE C.6
Nozzle
Pivot
Connector
Tab
New | Time to | Too Late |
| Rotate |
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Lock ni g
Nut ![](/images/new-backgrounds/1258501/25850153xi4.webp)
Con t cta
Tip
Contact
Pressure
Spring
Nozzle
Travel
Work
Travel
Toup rotateuntil ittheis freetip, clipof thethe contactend of thetip.electrodeLoosen theandlockinginch it nut about