Assertion: pilot light | /r/CapableOf | stay burning a 1/4 turn of the valve stem
Facets:
value: back to on
type: OTHER
Source sentences:
text: If this control valve has been monkeyed with recently, it may not have been fully opened so turn back to PILOT (pilot should stay burning OK), then back to ON - usually a 1/4 turn of the valve stem.