CoolCut30 Measurement Card

This is the quick live-reading card for the highest-value CoolCut30 24 V, OCV, and start-branch splits.

Use This Card When

there is no HF or no start
the fan or support behavior looks unstable
pilot exists but transfer does not

Prove First

fresh SG55 front-end stack
dry air source and clean clamp path
clean steel baseline before deeper board work

Fast Measurement Card

Checkpoint	Where to measure or observe	Healthy expectation	If abnormal, keep diagnosis in...
Upper-board green 24 V indicator	upper board during power-up and start attempt	stays on continuously when support power is healthy	capacitor-board or upper-board support branch
Fan behavior	fan during power-up and start attempt	stable and not collapsing when the board branch is loaded	support-power branch
OCV behavior	output during start attempt	clearly high, low, or absent and repeatable	relay, capacitor-board, or inverter branch
HF behavior	audible or visible HF at start attempt	consistent HF on clean steel	HF gap, relay, or upper-board branch

Official Parts Shortcuts

Use these only after the readings prove the complaint follows the torch-front-end or air branch.
CoolCut30 parts category: official parts path
SG55 electrode 07Y2517003: official product page
SG55 tip 07Y2517005: official product page
SG55 nozzle 07Y2517004: official product page

Stop Rules

Stop if a fresh front-end stack removes the complaint.
Stop if the clamp or air branch still explains the failure cleanly.
Stop using the card and open the full guide if OCV, HF, and support-power evidence still conflict.

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