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Specifications
Here
is the way we remanufacture compressors:
- Each compressor is completely disassembled. Sub-assemblies
are further disassembled into their component parts.
- Without question, all bearings, gaskets, piston
rings, and valve reeds are discarded, as well as any components
that do not pass the first inspection.
- All of the remaining metal components are cleaned.
All oxides, corrosion, sludge, wear product and lubricants and
disposed of appropriately. Each component is sorted and inspected
for stress and wear. Any component that does not meet or exceed
factory specifications, or is not capable of being refurbished,
is discarded.
- With our extensive machine shop expertise, all
components that require refurbishing such as cylinder honing,
cylinder liner replacement, precision surface grinding of valve
seats, bearing pressing, etc.. are handled in our plant. (Crankshaft
grinding, and chrome plating is handled by outside vendors specializing
in that field.)
- At this point, all components must pass visual,
chemical, and machine inspection requirements that meet or exceed
specified tolerances.
- Multi component assemblies (Piston/rod ,
oil pump, valve, capacity control devices etc.. are sub-assembled
and checked prior to installation in the compressor housing.)
- Compressor motors (stators) that are intact, are subjected to a
series of visual electrical and mechanical tests to determine
their suitability for reuse. Any stator that fails these tests
is completely stripped of the original wire varnish & insulation.
After testing the stator iron for appropriate magnetic properties
and quality, new hermetic insulation and magnet wire is installed
and tested. The entire stator assembly is immersed in a quality
hermetic approved epoxy varnish for through saturation. Next the
stator assembly is baked in a controlled oven for proper curing.
Afterwards further electrical tests are performed prior to installation
in the compressor.
- OEM tolerances are adhered to during the
assembly of the compressor. Fasteners are torqued to factory specifications.
- After
assembly every compressor is checked for leaks to assure appropriate
sealing.
- On completion of the assembly process, every compressor
is leak tested to assure that they are "gas tight".
- The proper quantity and viscosity, per the manufacturer's
specifications, of refrigeration lubricant is added. Specific
lubricants can be added per customer request. We can ship any
compressor without lubricant if so desired.
- Every compressor is run tested. The amperage Draw,
oil pressure valve operation, capacity control operation, etc
are recorded on a unique assembly traveler document which is serialized
and matched for future reference.
- After testing each compressor is pressurized with
30 psi of dry nitrogen.
- Each compressor is painted with a quality paint
to protect the metal finish and enhance appearance. Special coatings
are applied when appropriate for extreme environments.
- We customize each compressor per customer requirements.
Our goal is to have the compressor arrive at the customers location
without need for modification.
- Dallas Hermetic Compressors are remanufactured
as replacements equal to factory authorized remanufactured compressors.
For more information
on remanufacturing, please visit
The Remanufacturing Institute |