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  3. H1 Pump Shaft Seal Retaining Ring Replacement

Danfoss H1 Pump Shaft Seal Retaining Ring Replacement Installation guide

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As part of continuing product improvement effort and to commonize design, Sauer-Danfoss
is implementing a design change to the shaft seal retaining ring used in all H1P 45/53cc single
and tandem pumps. This kit contains two non-interchangeable shaft seal retaining rings where
only one will be utilized. In order to determine which retaining ring is required, an identifi cation
mark has been added to the face of the mounting fl ange. This identifi cation mark denotes that
the housing has a larger groove that will require the use of the thicker snap-ring style retaining
ring (refer to diagram). Once this determination has been made, the other retaining ring may be
discarded.
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Thin retaining ring
Thick retaining ring
PROPER RETAINING RING
SELECTION
Identification mark
New desig
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© Danfoss, 2013
11115113 • Rev AB • September 2013
1
Service Kit Instructions
H1 pump shaft seal retaining ring
Replacement part selection
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