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25 Ton Ram Operating Instructions
Section 8
Product Updates
& Notes
Dixon Valve & Coupling Company
800 High Street • Chestertown, MD 21620
ph: 800•355•1991 fax: 800•283•4966
www.dixonvalve.com
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ENGINEERING BULLETIN
PRODUCT UPDATE
Date: October 28, 1997
Part Number: IXM40, 2 ½" Internal Expansion Male Stem
Update: Use M011-384 Thread Adapter for assembly
Reason: Possible thread collapse during expansion process
In order to prevent possible thread collapse on IXM40's during installation, it is
recommended that a female threaded adapter be installed prior to installation. The
adapter part # is M011-384. Following is the procedure for installation:
1. Lubricate stem ID and small end of expansion plug.
2. Thread M011-384 onto threads of IXM40 hand tight ONLY!
3. Slide stem over pull rod thread adapter end first.
4. Seat M011-384 onto OUTER recess of 25ADAPT250.
5. Follow normal IX procedure.
6. When the assembly is removed from the pull rod, remove M011-384 and
clean the stem ID of excess lubricant.
If you have any questions, please feel free to contact Phil Kimble in our
Engineering Department.
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ENGINEERING BULLETIN
PRODUCT UPDATE
Date: October 6, 1998
To: All 25 Ton Ram Customers
From: Dixon Engineering
Part Number: 4" Swaging and 4" IX Stems
In an effort to keep you up to date on installation procedures for the 25 Ton Ram,
please review the following information regarding Swaging of 4" hose and the
Internal Expansion of 4" Male Threads.
Swaging:
Dixon recently received a report of a coupling retention situation using 4" Swaged
Cam & Groove with Goodyear's Orange Flexwing Hose and 4" TM Holedall
Stems on Boston Royalflex 1196 Hose. The fittings were installed using a 25 Ton
Ram. Coupling movement occurred.
Both of the situations were corrected by using a die holder longer than the standard
die holder (DH9-004). The new longer die holder is part number DH9-004-1.
It has been Dixon Valve's policy that when applications arise where an
improvement to a system is warranted, it notifies its customer base. Therefore, it is
our recommendation that when doing 4" Swaged Cam & Groove or Standard
Holedall Stems, you use the new 4" Die Holder. This is our first experience with
any 4" Swage type fittings assembled with the 25 Ton Ram not performing as
intended. It is important to note that it is only on the 25 Ton Ram that this new Die
Holder is required.
The new Die Holder is to be used in conjunction with the DH9-004 currently in use
for 4" stems. The DH9-004 is still needed to do smaller ID hoses, as well as with
the 25IXATTACH. The DH9-004-1 is only for 4" ID hose.
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Internal Expansion:
Dixon recently received a report of a situation concerning the installation of 4"
Internal Expansion Male Threaded Stems (IXCM64). The fittings were installed
using a 25 Ton Ram with the 25IXATTACH. At the base of the 25IXATTACH is
the 4" Adapter. Over time this adapter end can wear. This wear can cause the 4"
IXM64 stem to collapse at the threads during the installation process. This
happens because even pressure is not applied on the threads as the stem is being
expanded.
The situation can be corrected by using an adapter designed for the 4" fittings.
This new part number is M011-385. Unlike the adapter designed for the IXM40's,
this adapter is recommended only if the 25IXATTACH has a worn plate. It is not
a requirement that it be purchased to do 4" IX Stems.
If you have any questions, please feel free to contact Phil Kimble in our
Engineering Department.
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