Skip to content
Ch 0425 / 38

Step 04.25 — A drive: threadlock and lock the pulley set screws

Step 25 of 38 · Chapter 04 — A/B drive units and front idlers

Full page

Tap to enlarge

Parts:

  • the pulley's two set screws · already on the bench
  • Loctite 243 · consumable
  • 1.5 mm hex key · tool

Do:

  1. Back both set screws out. Blue patch on the thread? Refit dry. Otherwise one drop of Loctite 243 each.
  2. Land the first on the shaft's flat, if any, then the second.
  3. Recheck the height.

check Check

The pulley will not twist or slide under firm hand pressure and still reads 16.5 mm.

What you're looking at

Manual p.75: the pulley's two set screws. A set screw that backs out lets the pulley slip on the shaft, and a slipping A or B pulley shows up as prints that drift diagonally, not as an obvious failure.

Source: Voron manual p.75

← PreviousStep 04.24 — A drive: set the pulley on the A motor at 16.5 mm

Next →Step 04.26 — A drive: offer the motor up with the cable exit inboard