I bought an AKAI 4000DS MK-II new in the 1970s and it worked well for many years. but hasn't been used in the last 5 years. I tried it yesterday and the take-up reel wouldn't rotate. I viewed some youtubes showing repair of this reel to reel and learned that worn idler wheels can be the cause. I took the cover off and found the rubber is hardened and worn, and bought new wheels. The AKAI youtubes showed various parts being replaced but didn't show or give any info on lubrication. Regarding the idler wheels, one has a nylon bushing, and one has a brass bushing and both spin on stationary steel spindles. My question is would the idler wheel with the nylon bushing not need lubrication and the one with the brass bushing need lubrication? The photo shows the idler wheel system design that the 4000DS MK-II used. The idler wheel bushings changed over time...somee used nylon and some used brass bushings.
Thanks
Thanks
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