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Push-Con “T” fitting on the mist line. If any elbows are required in your feed or
mist line, connect them in the same manner as the “T” fittings.
• Note on permanent installations: when connecting pump to stainless or copper
tubing install a flexible discharge hose between pump and tubing to reduce
vibration to piping.
10. Maintenance procedures
10.1 SYSTEM PRESSURE
• Your pump includes a 2000 PSI (138 bar) high pressure glycerine-filled gauge
and an adjustable unloader valve. Check the system pressure periodically during
operation The operating pressure should be between 600-800 PSI (42-55 bar).
DO NOT EXCEED 800 PSI (55 bar)! Note: an air bubble will be inside the
pressure gauge. This is normal. To adjust pressure, turn the black knob on the top
of the pump chassis while observing the gauge.
10.2 CHANGING PUMP OIL
After an initial oil change after 50 hours of operation, the pump oil should be changed
every 300 hours of operation (or every three months). To change the oil do the
following:
• Run pump for 1 hour prior to changing the pump oil. This will heat the pump,
causing the oil to flow better when removing from the pump.
• To avoid electrical shock, disconnect power supply and then continue by
removing the pump cover.
• Remove the breather cap located on the topside of the pump.
• Locate the oil drain tube on the bottom side of the pump, remove the 1/8” drain
cap and drain the oil into a container.
• After draining is completed, replace drain cap and fill pump with SAE 30 Non
Detergent Pump Oil. The pump will take 14 ounces. Oil will show ½ way in sight
window when pump is full.
• Replace breather cap (hand tight) and pump cover.
10.3 EXTERNAL WATER FILTER INSPECTION
• Shut down water supply to pump before inspecting the filter element.
• To insure the long life of the pump the external filter element needs to be
inspected and/or replaced every 6 months or as needed. The time in between
replacements will vary with more use of the system and quality of water. If in an
area of hard mineral water, change the filter more often.
10.4 DRIVE BELT INSPECTION
• The belt should not loosen from vibration of the pump, however, when changing
the oil, check the belt tension and inspect for cracks or abnormal wear.
• The belt should never be more loose than to allow a movement of ½” (13mm) in
the center between the pulleys.
