I have two matching recliners (not La-Z-Boys) .

One recliner operates normally.

The footrest of the other recliner is difficult to lower & raise and
it sometimes raises all by itself (without using the handle).

I've turned both recliners upside down and the mechanisms look
identical (I see no broken or bent parts).

How can I lubricate the problem recliner's mechanism? What kind of
grease or other lubricant should I use?