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       EVDeals Delrin Chain Block Installation 

                             ChainGuideDelrin.jpg (51764 bytes) 

Your adjusting block can be installed in any one of four 
orientations. i.e., there is no "right" way to position the 
block. Select the positioning that best suits the condition 
and tension of your chain. The object is to remove all but 
a small portion of the chain slack without causing binding.
Place the adjusting block into position and determine the 
best orientation. Install the chain block using the original 
washers and bolt. If necessary, you can place one or two
washers under the block to provide proper clearance. 
Before tightening, rotate the wheel and be certain that the 
chain moves smoothly over the block. 

The picture below shows how the Delrin block is positioned
to guide the chain smoothly between sprockets of a Currie 
USPD bike drive unit. The same positioning applies to
all Currie scooter drives. 

     
(early version block...latest blocks are double ended)

 

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