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How to deal with FF shimano, system?? do i need special tools??, please i need advice

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How to deal with FF shimano, system?? do i need special tools??, please i need advice

Old 05-27-14, 05:50 AM
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Renee Whittemor
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How to deal with FF shimano, system?? do i need special tools??, please i need advice

Hello, I just bought a panasonic touring ff sytem and was rather shocked and dismayed to find that the freewheel on the back wheel was "frozen." After some research and headscratching, I realized that on this bike the front chain wheels were what "freewheeled." I examined the crank on my bike and is "freewheel." It acts like it needs to worked on, How hard is it to work on these types of front freewheel cranks? Could it just be a matter of disassembling the crank, cleaning the crappy old grease out and reassembling? how to do it, do i need special tools, I just want took apart and cleaned and repaired and recabled it and lube and regreased it.
thank so much for your time and your advices, im new in this kind of bike, and i would like to learn how to do it, if somebody can give advices, i'll appreciate that, please don't hesitate if you have more question about it, and be explicit

thank you
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Old 05-27-14, 06:59 AM
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Andrew R Stewart 
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It's been too long since I last opened up a FF system crank/BB to remember specifics. But IIRC the BB aspect is much like any other one and the freewheel portion is between the spindle and RH arm. I would go ahead and take apart the arm/BB portions, treating them as usual with cleaning and re greasing. But when apart I'd inspect the freewheel and try to drip light weight oil (first) through the ratchet/bearing area then thicker oil (second). I've done many tune ups and such on these systems over the years but since they are pretty reliable never had to dissemble completely.

IIRC there are two versions of the FF system. One with a 1 pc crank arm and the large 5/16" balls, Ross used these on their bikes. And a 3 pc version with a "BB68" shell, Panasonic used these.

The rear wheel's "FW" actually can coast but each cog is rather tightly held by the "FW". Should the chain jam then the rear cog could rotate, preventing injury to one's foot/ankle. I have replaced this special "FW" with a traditional type w/out issue, excepting for the loss of the ability to shift while coasting as the ratcheting action will now be at the rear wheel. Andy.
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Old 05-27-14, 07:21 AM
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Perhaps this might help:

https://answers.yahoo.com/question/i...5122642AAIZuMc
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Old 05-27-14, 12:51 PM
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Originally Posted by Andrew R Stewart View Post
It's been too long since I last opened up a FF system crank/BB to remember specifics. But IIRC the BB aspect is much like any other one and the freewheel portion is between the spindle and RH arm.
Yes and no... The three-piece FF system (as on the OP's Panasonic) used a unique bottom bracket with a threaded BB spindle and cones, and threaded cups on the frame that are arranged opposite to "normal" BB cups.

To the OP: you need to remove the right crank arm to access the freewheel mechanism. It uses a standard crankarm remover to get it off. As Andy said, running oil through the mechanism should get it working smoothly.

Getting into the bottom bracket further is a little weird, even among bike parts. It has cones that thread on the spindle and threaded cups in the frame that are arranged opposite "normal" bottom brackets. Nothing is interchangeable with more modern parts. If the main bearings need rebuilding, I would find a mechanic who either worked on these before or has a penchant for weird parts... or both. If parts in the BB need to be replaced, you'll need to change to a conventional crank, bottom bracket and freewheel.
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