Chandler Engineering
5000 SERIES PUMP MANUAL
[78]
Table 11-1 for a description of the seal extraction rod tool.) This procedure creates
pressure in the cylinder barrel. This causes the seal to pop out of the seal cavity and
remain on the seal extraction rod. If the seal sticks and does not pop out when the
rod is inserted, press the rod in again to create pressure in the cylinder. Then, pull
back on the rod to extract the seal. Remember, if you plan to re–use the seal, handle
it very carefully once it is removed.
5.
Inspect both the seal and the cylinder barrel for scratches, the presence of foreign
objects, and sharp edges. Using a magnifying glass, examine the outer surface of
the seal for scratches along the piston axis.
6.
Examine the inside lips of the seal for scratches or deformations. Pay close
attention to the area around the joint in the tensioning spring. This area should be
smooth and not show deformities due to the spring joint.
7.
Examine the cylinder barrel cavity for scratches. The cavity surface should be
smooth, clean, and free of contaminants.
NOTE:
A seal or a cylinder barrel with scratches will result in leaks when operated. Ensure
that the seal and cylinder seal area are very clean. Lint or dirt on a seal can cause seal leakage.
If possible, the seal should be cleaned in an ultrasonic cleaner or with a Q–tip
®
just before
insertion.
Seal Insertion Tools and Components
If both the seal and cylinder are in good condition, proceed with the seal insertion. If you plan
to replace the old seal, inspect and clean a new seal prior to installation.
11.2.2.3
Seal Insertion Procedure for Cup
–Type Seals
1.
Coat the seal on both the inside and outside surfaces with a light coat of
lubricating compound. Petroleum jelly or vacuum grease works well for this
Содержание Ametek Quizix 5000 Series
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