1954 Heidemann-Works Hanover question

[highwheelerboy25]

perhaps there exists a tool with the same thread as this crank
View attachment 1423902

The issue is there are no threads on the crank arms, just the spindle.

 

[rustjunkie]

The issue is there are no threads on the crank arms, just the spindle.

 

[highwheelerboy25]

I had no luck with 2 and 3 jaw pullers. Here is a link to a home made puller very similar to the commercial tool, found with a search for "glockenlager fahrrad werkstatt"

https://www.ebay.de/itm/334014157421?campid=5335809022

That is genious!

 

[juvela]

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firm also produced a great many pedal cycles and mopeds under the banner HWE, standing for Heidemann Werke Einbeck

https://mo-ped.se/werke/hwe.htm

bit of history here, scroll down -

STRATO - Domain reserved

fahrrad-oldtimer.com

Heidemann "Vespa style" juvenile bicycle -

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chainset is Thun

crank removal tool -

both VAR and ELDI produced tools for crank arm removal where no threads are present

the VAR one is model #932

as recalled, they employ gear puller type articulated arms

spent a few minutes checking online without being able to locate any good images

AFAIK the VAR was discontinued some years back

here is an ELDI model designed for use with cottered chainsets, IIRC a similar model intended for unthreaded cotterless sets was also offered -

a quick and easy way to get them off is to employ the straight end of a large pry bar/crow bar; put a piece of latigo, or several layers of duct tape, around the blade and use the bottom bracket cup as a fulcrum

everything is made of steel with plenty of "meat" so no worries regarding deformation

appreciate it sounds crude; have successfully done them in this manner

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