Revision F 03/20/2017 MSI - A Division of Dixie Iron Works, Ltd. All rights reserved, patents pending. Page 8
3.3 12BPlumbing Hoses
44BMSI does not supply the plumbing from the panel to the well service pump due to variations in individual
installations. Supplying these hoses is the responsibility of the installer and shall include:
•45BSystem supply air (¼” FNPT connection at control valve inlet)
•46BValve air supply and return hoses (-4 braided stainless steel hose with ¼”-37° Flared JIC male swivel
fittings, rated to 200 psig)
•47BHigh pressure packing lubrication hoses, one per packing gland (-4 braided stainless steel hose with ¼”-
37° Flared JIC male swivel fittings, rated to 3000 psig)
48BGenerally, the installed air hoses should not exceed about 30 feet (9 meters) in length. If necessary, the hose
between the reservoir and grease pail may be replaced with a longer hose but should not exceed about 10 feet (3
meters) in length.
49BRoute the hoses such that they are free of kinks, are not a tripping hazard, and are clear from danger of being
snagged or entangled. Secure hoses to steel structures with clamps to avoid transmission of forces to the fittings
on the Panel and Gearbox Assemblies should accidental contact occur. Ensure air valve hoses (supply and
return) going from the Panel Assembly to the gearbox air valve are correctly connected. See routing diagrams
on following pages, labels are provided on the Panel and Gearbox Assemblies to aid in correct hose routing.
3.4 13BSystem Air Supply
50BMSI strongly recommends that the air supplied to the Auto-Lube™ System utilize a water separator or filter to
reduce or prevent moisture from entering the system. Moisture may cause some components to malfunction
and should be eliminated if at all possible. Inlet air pressure should be 100 – 145 psig.
3.5 14BLubrication
51BThe lubricant should be selected based on what works best for the well service pump operating conditions. For
most applications, MSI recommends using MSI Plunger Grease™. This is a water-resistant, non-soap, NLGI
Grade 2 plating grease for operating temperatures between -18°F to 400°F. MSI Plunger Grease prevents metal
to metal contact, reduces temperatures, and is resistant to oil separation.
52BOther greases may be used as long as they meet NLGI standards for Grades 000, 00, 0, 1, or 2. Oil may also be
used with the Auto-Lube™ System and should have a Viscosity Index (per ASTM D2270) of at least 95. Oils
in this category are usually machine way lubricants, rock drill oils, or conventional motor oils. MSI strongly
recommends that any other lubricants are thoroughly tested prior to acceptance into operations.
53BMSI recommends only clean, unused lubricant is used in the Auto-Lube™ systems. Recycled lubricants may
contain contaminants that could obstruct or damage the pumping elements or check valves and should be
avoided. Any small particulate in the grease will clog the blue lubrication pumps, preventing grease from being
delivered to the well service pump packing. If grease steadily flows from the weep hole in the side of the blue
lubrication pump bank, at least one of them is clogged and needs to be cleaned. For further details regarding the
cleaning process, contact a MSI service technician. Always take care when replenishing the lubricant to prevent
possible contamination.
