Step 07.32 — Bring both belts to ~110 Hz¶
Step 32 of 39 with a helper · Chapter 07 — A/B belts and tensioning
(no image — see text)
Parts: none.
Do:
- Adjust with the front-idler tensioner screws: in for more tension, out for less. Target ~110 Hz over the 150 mm span, about 2 lb.
- The two tensions affect each other, so alternate quarter turns until they are equal.
Check
Both belts read ~110 Hz. Do not chase the number; this tension is provisional and Ch 14 Step 14.4 sets it last.
Helper Reads each belt's lowest peak aloud after every quarter turn you make.
What you're looking at
The two tensions interact: tightening one belt shifts the X extrusion and changes the other. That is why this converges by alternating quarter turns between the two rather than by finishing one belt and then starting the other.