Might depend on your stove model but for mine I would just pull the top off (i.e. the black pan under the grate), the main line connects in at the manifold where the control dials are. Should be able to disconnect there. There are about a half-dozen screws that hold the pan in place, but all are fairly easy to access.
2011 Jayco X19H (purchased 2015)
2008 Jayco 1007 PUP (purchased new, traded for the X19)
2018 Nissan Titan Midnight Ed.