It might be to your best advantage to send it to Hy Gain (MFJ) for the factory complete rebuild. They may see things you don't know are bad and need fixing.
Not very expensive either. Considering the alternative such as lost bearings, screws, and other lively parts.
I am glad I sent mine. fast turn a round too.
Five boxes preserve our freedoms: soap, ballot, witness, jury, and cartridge.
Never under any circumstances,take a sleeping pill and a laxative on the same night.
Cats know your every thought.
They don't care,
but they know.