Nathan lyon put the skids under the flailing West Indies as Australia set course for an overwhelming early victory despite Darren Bravo holding on in the first Test in Hobart on Friday.
At the close of a stop-start day through showers, the Windies were 207 for six with Bravo offering spirited resistance on 94 with Kemar Roach in support on 31.
lyon claimed two wickets in one over to trigger a middle-order collapse to have the West Indies in familiar trouble in their chase after a mammoth declaration of 583 for four on the second day.
The probing off-spinner snared the wickets of Marlon Samuels and Jermaine Blackwood in his seventh over along with opener Rajendra Chandrika for 175 Test wickets to leave the hapless Caribbean tourists struggling to avoid a heavy defeat with three days left.