Jaguar xk 150 , some idea for improved emergency brake?

Hand brake on XK 150 not work properly, included after change pads and cable, someone have an idea to improved his functioning

First thing that comes to mind is to check that all the linkages are correctly aligned, how long since the pads have been changed? Are they bedded in? Not sure if this would be required but main pads sometimes need a bit of bedding in before working to max specs.

Sorry for coming in late on this, there is information in the owners handbook for adjusting the handbrake. Do you have access to a service handbook.
John