Racing NSW is yet to receive an application from Bart Cummings to dissolve his training partnership with grandson James.

However, hopes of salvaging the racing union appear slim after confirmation the 12-time Melbourne Cup winning trainer has approached Hawkesbury Race Club.

Reports of a rift between the pair emerged on Wednesday with James Cummings later issuing a statement, insisting his differences with his grandfather could be resolved.

Racing NSW CEO Peter V'Landys said it was a family matter that needed to be dealt with privately.

"We have had further correspondence (on Thursday) but it's private and confidential," V'Landys said.

The Racing NSW licensing committee met on Thursday but the meeting went ahead without an application to end the training partnership.

"That matter was not on the agenda," V'Landys said.

Hawkesbury Race Club has confirmed Bart has applied to use its track for up to 30 horses on fast-work mornings.

His request needs approval at board level which will almost certainly view his shift from Leilani Lodge at Randwick as a coup.

Bart is expected to train out of his nearby 15-acre Princes Farm property which has stables and a track suitable for slow work.

The 86-year-old entered into a training partnership with James at the start of August and the pair won stakes races with Eurozone in Sydney and Precedence in Melbourne.

If Bart does dissolve the union and vacate Leilani Lodge, there is no guarantee those boxes will be allocated to James.

A decision on who would acquire the stables would be in the hands of the Australian Turf Club.

Bart and James Cummings have six horses paid up to run in Sydney this weekend including Reigning at Randwick.