A number of years ago a Pac Brake representative told me that if you are going to "not use" your RV for several months, you should definitely lube the mechanical assembly. However, he further said, if you use it regularly, you do not have to lubricate it. We run our motorhome at least once per month all year round, living in Florida, and have had Pac Brakes for over 18 years now and have never lubricated the Pac Brake. We have never had a problem. Some of our brakes have run over 90,000 miles.
Ed Headington