Dixon Valve 25 TON RAM SEC08 Product Updates - Manual (Page 3)

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.