Inspection After Cleaning
(21) Before assembling the regulator, it is necessary to inspect all the cleaned components. Using the
magnifying glass, ensure all parts are clean and contaminate-free, and check the components for
damage that may have been hidden by corrosion or lubricant. Look for scratches that may affect the
sealing of the regulator. In a darkened room, use the UV light to look for organic material. If any are
present, re-clean the part! This is critical for use with oxygen percentages above 50%!
(22) Another way to check for residual lubricants is to fill a tray with clean, fresh water deep enough to
cover the parts by an inch or so. Lay the components in and circulate the water. Allow the pieces to
soak for several minutes. Once it has settled, look for a rainbow sheen on the surface of the water. Any
residual lubricants will float and form a “slick” on the surface. If one is present, the parts must be
cleaned again.
(23) Now that all parts have been cleaned and checked, the assembly can begin. Make sure all old parts
that are to be replaced have been discarded or segregated. Remove the new parts from the main
service kit bag and lay them out in the order they will be used. Do not take the new parts out of the
individual bags yet!
Caution Note: Removing parts from their individual bags, before they are to be
used, runs the risk of mixing them up. Some O-rings are very close in size but are
not interchangeable! Keep the parts in the bags until you need them.
(24) As with the parts that have been cleaned, it is a good idea to inspect the new parts as well. Inspect
the HP seat to ensure it is free of any defects. Check all the O-rings and inspect them as you use them
for nicks or other concerns. Inspect the washers to ensure they are free of excess burrs or other issues
that could affect their function. It is also a good idea to use the parts list on the schematic to ensure
that all the new parts that are needed are present and accounted for in their required quantities.
(25)
Lubrication can be overdone
.
Doing so runs the risk of trapping excess dirt or debris on the parts.
One way of reducing the risk of overdoing it is to use the lube-in-a-bag method – Fig. 1
Fig. 1
Содержание DGX Gears XTRA
Страница 1: ...DGX Gears XTRA First Stage Service Manual...
Страница 32: ......