Bench Test / WeldKing / CUT65

Test intent

Separate air-pressure, torch-head, and RV1 pilot-current faults from true control or power faults.
Verify stable pilot, transfer, and cut behavior after repair.
Confirm the machine does not only recover when pressure or pilot-maintain current is mis-set.

Tools and setup

Multimeter
Dry air source
Fresh A81 front-end stack
Clean mild-steel coupon
Known-good work clamp

Pre-power checks

Check	Expected condition	Result
Torch head	mechanically healthy and rebounding correctly	pass / fail
Clamp placement	bright metal, tight return path	pass / fail
Air pressure under flow	inside the stable working range	pass / fail
Guide or stand-off if used	hardware not bent or forcing bad torch height	pass / fail

Electrical checkpoints

Checkpoint	Expected value or behavior	Record actual
Postflow sequence	normal and repeatable
Pilot behavior	stable pilot with no abnormal dropout
Pressure sensitivity	complaint does not disappear only with extreme pressure correction
RV1 effect	pilot-current adjustment does not mask a mechanical fault

Functional proof

Test	Pass condition	Result
Cold start	normal pilot and start on clean steel	pass / fail
Transfer test	clean move into the cutting arc	pass / fail
Short cut	stable cut without pilot dropout	pass / fail
Warm retest	no new pilot instability after repeated starts	pass / fail
Guided retest if required	guided hardware does not create the complaint after freehand proves healthy	pass / fail

If it fails

Pilot returns after pressure correction: stay in air branch first.
Pilot changes with RV1 only: do not call the board bad yet.
Poor tracking with healthy pilot: stay in torch, stand-off, and guide branch.
Postflow normal but still no start: split torch mechanics from control electronics.
Freehand healthy but guided cut bad: keep the diagnosis in guide, stand-off, or circle hardware first.

Direct official parts pages

Use these only after the complaint has been proven to follow the torch, guide, or air branch.
CUT60 and CUT65 parts category: official CUT65 parts path
A81 torch 07001400: use the official CUT65 parts path above.
2-leg stand-off 07CV0026: use the official CUT65 parts path above.
Circle kit 07CV0052: use the official CUT65 parts path above.

Post-repair release

Signoff item	Result
Stable pilot restored	pass / fail
Stable transfer restored	pass / fail
Freehand baseline restored before guide proving	pass / fail
Short cut completed cleanly	pass / fail
No abnormal pressure-sensitivity or restrike delay after retest	pass / fail

Technician: __________ Date: __________ Serial or shop tag: __________