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The Allis Chalmers HD10 crawler used, at
different times, different friction discs. The fiber discs, (70044478) when new measured
3/16" thick. If the fiber discs are worn down to approx 5/32" or have damaged
teeth, they should be replaced. The bimetallic discs used originally were replaced
temporarily by the fiber discs above, and then again replaced by a later style bimetallic
disc (which were thinner than the bimetallic discs originally used.)
So what do you measure and how many do you use!?
If your discs pass muster, as above, you can use as many as you like until your stack
height reaches a height of 4 3/16" (plus or minus 1/16") Begin stacking your
discs, WITH A FRICTION DISC FIRST (bimetallic or fiber) and alternate with the steel discs
until your stack height reached the correct specification.
Whatever your clutches are equipped with, or whatever you want to equip them with, we have
new ones on hand. We have had them made especially to fit your needs when repairing your
HD10 steering clutches.
If you are using bimetallic discs, and alternating with steel discs, your clutch will be
less prone to seize up, give you longer clutch life, and a higher overall coefficient of
friction. You will eliminate the possibility of broken teeth on your fiber discs.
Due to design, the HD10 steering clutch service is more difficult and labor intensive to
work on than the simpler HD5, HD6 steering clutch process. Upgrading to the bimetallic disc pack does cost more and
you are the only one that can make the decision between the two different styles of clutch
packs. For some people the labor and inconvenience involved in future steering
clutch repair is not a consideration, while for others it is very important. For the
difference in cost, you will end up with a superior clutch, much fewer headaches,
and less labor in the future if you convert to the BiMetallic discs.
ORDERING INFO:
 We can usually ship on
the same day any items we have in stock that do not have to be pulled from a
machine.
We are set up to offer the payment choices of either Visa, Master Card, or the PayPal
option (to the account of webmaster@tractorparts.com)
Al items below are in stock and if you would
like to get any of them on the way just let us know! If you are in the US you may
call 1-800-531-9021 or if you are outside the US, 1 208 342 8911. You may also
email steeringclutch@gmail.com
for orders/questions.
Our hours are Monday through Friday from 10 am
Eastern Time to 6 pm Eastern Time (8 am Mtn Time to 4 pm Mtn Time). We are located
20 miles east of Boise, Idaho.
044585-->066360 ---> 044478 (70044478) Fiber Friction Discs ...new after
market 18.00 ea
 041781
--->70624562 Steel separator plates... 21.00 ea
70609699---057375 (70057375) Bimetallic 32.00
ea
 The following manuals are only
guidelines. Watch your serial numbers closely and when you think you have the
correct information, CHECK AGAIN!!! Allis Chalmers
made some confusing model designations. In the beginning AC made an HD6 and the
standard model, standard gauge, was called HD6B. Do not confuse this HD6B with the
later model HD6B! They are entirely different machines in almost all circumstances.
 SEARCHING FOR PARTS!?
When searching for parts, the part
numbers are, of course, very important. It is GOOD TO KNOW
that the part numbers in your parts manuals are probably NOT
the part numbers that you want to search for!!! If you have a manual showing 6 digit part
numbers, and the early machines and their parts manuals mostly show 6 digit numbers, and
you want to replace a bearing or seal for example, your local bearing and seal house will
not be able to help you if you give them that 6 digit number! For most of the
early construction equipment and loaders you will want to add a "70" in
front of the 6 digit number to make an 8 digit number. Depending on product line,
you may have to add a "73" in front of the 6 digit number. If you give
your local bearing and seal house the 8 digit part number they will be able to help you!
(or if you are doing a Google search) As with most rules, there are always
exceptions but your odds of finding the part that you need greatly increase if you do
follow this rule. "Use
an 8 digit part number by adding a "70" or "73" to your 6 digit
number."
 You do not know what may have been done to your
machine in previous repairs over the decades. Even the manuals are not always
accurate so verify with casting numbers and compare them to part numbers that you find.
HD10 GENERAL SPECIFICATIONS
AC HD10 CRAWLER
OPERATIONS MANUAL
AC HD10 CRAWLER PARTS
MANUAL
AC HD10 CRAWLER SERVICE
MANUAL
HD10 STEERING CLUTCH
SERVICE
DETROIT
DIESEL TUNE-UP TROUBLESHOOTING AND MAINTENANCE MANUAL 1963
DETROIT
DIESEL SERIES 3-71 4-71 6-71 SERVICE MANUAL FOR AC HD7 HD10 HD14
DETROIT
DIESEL SERIES 71 3 CYL 4 CYL 6 CYL OPERATIONS MANUAL
DETROIT
DIESEL SERIES 71 3 CYL 4 CYL 6 CYL PARTS MANUAL
DETROIT
DIESEL 71 SERIES IN-LINE SERIES TRUCK AND COACH SERVICE 1950
Click HERE to view all of our new steering clutch
discs.
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Email steeringclutch@gmail.com
 for orders or
questions.
 
CONTACT OUR OFFICE at 1-208-342-8911
General Gear and Machine, 733 Desert Wind Rd., Boise, Idaho, 83716 US
*All prices are in USD & do not include shipping
All prices are for new aftermarket unless stated otherwise
All OEM part numbers are for references only
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