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HP97 printer gear replacement
11-14-2016, 09:06 PM
Post: #1
HP97 printer gear replacement
After a long search, I found a supplier for the replacement of the rubber gear in Germany.
The bore I had to increase from 2mm to 2.38mm and with some sandpaper I had to reduce the thickness by 0.1mm. But now the brass gear runs perfectly.

I have the running surfaces with little oil. Nevertheless, the printer makes noise as a saw.

Now the supply for the European HP97 printers is ensured :-)

http://www.modellbauershop.de/zahnraeder...3-30-z.php
Produkt-ID: 390760
Price €11,25

Hans-Peter


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11-15-2016, 02:33 PM
Post: #2
RE: HP97 printer gear replacement
Thanks Han,

I'm looking for this gear for almost a year!

Cheers!
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11-15-2016, 02:37 PM
Post: #3
RE: HP97 printer gear replacement
By the way, you mentioned "european HP 97".

Are there diferences in the gear measures between the 97's?

TIA
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11-15-2016, 06:12 PM
Post: #4
RE: HP97 printer gear replacement
Not only for the European also the other Countries who would be delivered from the company.
In the other case I will make a collective order for overseas HP97, if the delivery should not go.

I think Geoff was already in a forum in the search for the gears and he wanted about 40 pieces, if I remember correctly.

HP ;-)
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11-20-2016, 10:06 PM (This post was last modified: 12-03-2016 10:10 PM by bernouilli92.)
Post: #5
RE: HP97 printer gear replacement
This gear is a better replacement:
http://www.modellbauershop.de/zahnraeder...30-z-1.php

It's cheaper and you don't need to reduce the thickness. But you still have to widen the hole.

There has been a post about it:
http://www.hpmuseum.org/forum/thread-601...l#pid53789
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08-21-2018, 05:25 PM (This post was last modified: 08-25-2018 04:53 PM by Tom V.)
Post: #6
RE: HP97 printer gear replacement
Hi folks, hello Hans-Peter,

thanks for this valuable information!
Today I purchased new brass gears from the Modellbauershop (now it's https://www.ghw-modellbau.de/)

I hope I can finish the HP97 restoration next week

regards from Muelheim/Ruhr Germany
Thomas

cheers!
Thomas
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08-22-2018, 12:59 AM
Post: #7
RE: HP97 printer gear replacement
(08-21-2018 05:25 PM)Tom V Wrote:  Hi folks, hello Hans-Peter,

thanks for this valuable information!
Today I purchased new brass gears from the Modellbauershop (now it's https://www.ghw-modellbau.de/)

I hope I can finish the HP97 restoration next week

regards from Muelheim/Ruhr Germany
Thomas

Hi Thomas,

Please tell us when you finish. I have not restored mine yet and if the gears you bought are ok, I will buy them too.

Cheers
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08-22-2018, 07:08 PM
Post: #8
RE: HP97 printer gear replacement
I can confirm that this gear fits perfectly and can easily be taken as a replacement.
The new gear will probably last longer than the rest of the printer.

Hans-Peter

   
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08-25-2018, 04:51 PM
Post: #9
RE: HP97 printer gear replacement
Hi folks,

done.... printer works perfect!

I purchased from "GHW Modellbauversand" this part:

"Stirnrad Mod. 0,3 Messing - 30 Z"
Part number #753030
each 3,15 EUR

https://ghw-modellbau.de/product_info.ph...anguage=en

The gear fits perfect, only the hole is to small
I drilled the hole to 2,4mm (we have a lathe at work)
no further modifications required!

thanks to the forum for the great tip!!!

cheers!
Thomas
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