Specifications

V. CLEANING AND INSPECTION
A. Choice of Cleaning Methods
C. Inspection
1.
2.
3.
Steam may be used for external cleaning of
completely assembled units. Care must be
taken to ensure that water is kept out of the
assembly by tightly closing breather caps and
other openings.
Rough parts such as housings, which are too
large to conveniently clean with solvents, may be
immersed in a hot solution tank containing a mild
alkaline solution. Parts cleaned in hot solution
tanks must be rinsed thoroughly to prevent
damage by traces of alkaline material.
Parts with ground or polished surfaces, such as
bearings and shafts, should be cleaned with
emulsion cleaners or petroleum solvents. Alka-
line hot solution tanks may damage the
machined surfaces and such cleaning methods
should be avoided.
B. Drying and Corrosion Inhibition
Soft, clean shop towels should be used to dry parts
after cleaning. Compressed air may be used to clean
accessible areas of large parts such as the housing.
Bearings should not be spun dry with compressed air,
as the lack of lubrication may cause damage to the
mating surfaces.
Dry parts should be immediately coated with a light
oil or corrosion inhibitor to prevent corrosion damage.
Parts which are to be stored should also be wrapped
in heavy waxed paper.
Prior to reassembly, parts which are to be reused
must be carefully inspected for signs of wear or dam-
age. Replacement of such parts can prevent costly
downtime at a future date.
All bearing surfaces, including ball bearing assem-
blies and roller bearing cups and cones, should be
examined for pitting, wear, or overheating. Shafts may
be nicked and marred, or may have damaged threads.
Parts which show any signs of damage should be
repaired or replaced.
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