Sachs 3 spd hub repack
09-30-22, 11:53 AM
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Sachs 3 spd hub repack
I bought an Amsterdam brand dutch bike, most likely from the 70s, and want to start doing an overhaul this weekend.
The LBS sold me a tube of White Lightening Crystal grease for this, but after watching a bunch of Youtube vids and reading Sheldon's pages, I have more questions than I started with.
Do I just use the grease, or should I use a combonation of grease and oil?
Is automatic transmission fluid good to use?
Anything else I need to know?
Thanks in advance,
Gary
The LBS sold me a tube of White Lightening Crystal grease for this, but after watching a bunch of Youtube vids and reading Sheldon's pages, I have more questions than I started with.
Do I just use the grease, or should I use a combonation of grease and oil?
Is automatic transmission fluid good to use?
Anything else I need to know?
Thanks in advance,
Gary
09-30-22, 02:03 PM
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For my internally geared hubs, I usually use grease only on the bearings. For the internals, I find that oil (30w non-detergent) keeps everything working smoothly even in frigid weather. On the few newer Sturmey hubs, I use NGLI 00 grease, which is very thin. It's actually pourable. Regular grease on the bearings in any case. I've never used the ATF soaks but some folks swear by them.
09-30-22, 09:27 PM
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+1 on OIL for the internals
Gear hubs use "splash lubrication" and so depend on a liquid lube that can "splash" similar to how front loading washing machines work. As parts move within they pick up oil and spread it around.
You need a small amount (thinks multiple drops vs. ounces). If you add too much oil, it will weep out through the bearings and get all over the place.
Gear hubs use "splash lubrication" and so depend on a liquid lube that can "splash" similar to how front loading washing machines work. As parts move within they pick up oil and spread it around.
You need a small amount (thinks multiple drops vs. ounces). If you add too much oil, it will weep out through the bearings and get all over the place.
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10-01-22, 06:52 AM
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Does the hub have a coaster brake?
SRAM bought Sachs. SRAM discontinued T3 hub production in 2009 in favor of the newer i3. SRAM discontinued all IGH production in early 2017. I can't find the old IGH service manuals on their web page anymore. Here's the section on lubrication from the T3 manual:
SRAM bought Sachs. SRAM discontinued T3 hub production in 2009 in favor of the newer i3. SRAM discontinued all IGH production in early 2017. I can't find the old IGH service manuals on their web page anymore. Here's the section on lubrication from the T3 manual:
