SMAW 4GF Overhead Test Prep | Starts/Stops, Positioning & Root Pass Tips
SMAW 4GF Overhead Test Prep | Starts/Stops, Positioning & Root Pass Tips
Welcome back to Efficient & Proficient with Kevin Roy. In this episode, Kevin walks through the SMAW 4GF welder qualification鈥攖he overhead position and the final step toward your all-position SMAW.
If you鈥檝e already knocked out flat, horizontal, and vertical, this is the one that completes the set and makes you more valuable and versatile in the field.
You鈥檒l learn:
- What 4GF is (SMAW overhead) and why it matters for all-position qualification
- How the 4GF test assembly is the same as the 1GF and 3GF setup
- What to expect with CSR-marked starts/stops, and why you don鈥檛 move the coupon until CSR has checked it
- Root pass approach: square side first (about 3/4 of the joint), then bevel side (about 1/4) to the marks
- Overhead body mechanics: get comfortable, build a steady base, use an armrest, and plant your hip to stabilize
- Why overhead demands a tight arc length and consistent rod angle (gravity isn鈥檛 your friend)
- A key technique detail: maintain a small gap between beads so you can tie them in cleanly
- Why small hot passes beat 鈥渢wo fat passes鈥 (reduces risk of lack of fusion)
- How the bend test evaluation works: 3 straps total (2 roots, 1 cap)
- The benefit of passing 4GF: next time you test, it can be a single check test plate instead of repeating all positions
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