USER GUIDE
SERVICE Lubrication: Anytime the pump is removed from operation, the cooling oil in the motor housing should
be checked visually for oil level and contamination.
Checking Oil:
To check oil in the motor housing, set pump upright. Remove plug from motor housing. With a
flashlight, visually inspect the oil in the motor housing to make sure it is clean and clear, light amber in color
and free from suspended particles. Milky white oil indicates the presence of water. Oil level should be just
above the motor when pump is in the vertical position.
Testing Oil
: Place pump on it’s side, remove plug from motor housing and drain oil into a clean, dry container.
Check oil for contamination using an oil tester with a range to 30 Kilovolts breakdown. If oil is found to be clean
and uncontaminated (measuring above 15KV. Breakdown), refill the motor housing. (See Replacing Oil below) If
oil is found to be dirty or contaminated, the pump must be carefully inspected for leaks at the shaft seals, cord
assemblies, O-rings, and plugs before refilling with oil. To locate the leak, perform a pressure test. After leak is
repaired, dispose of old oil properly, and refill with new oil.
Replacing Motor Housing Oil
: Drain all oil from motor housing and dispose of properly per local and
environmental standards. Set unit upright and refill with new cooling oil. Fill to just above motor (see Table
2, Item #16) as an air space must remain in the top of the motor housing to compensate for oil expansion.
Apply pipe thread compound to threads on plug and insert and tighten into housing.
Replacing Seal Chamber Oil:
Drain all oil from seal chamber and dispose of properly per local and
environmental standards. Set unit on its side, with plug upward, and refill with new oil. (approximately 13oz)
Apply pipe thread compound to threads on plug and insert and tighten into housing.
WARNING! Do not overfill oil. Over filling of oil can create excessive and dangerous hydraulic pressure which
can destroy the pump and create a hazard. Overfilling oil voids warranty.
DIELECTRIC COOLING OIL : BP – Enerpar SE100: Conoco – Pale Paraffin 22; Mobile – D.T.E. Oil Light;
G&G Oil – Circulating 22; Imperial Oil – Voltesso-35; Shell Canada – Transformer-10; Texaco – Diala-oil-AX;
Woxo – Premium 100, Shell 2210.
Pressure Test for pumps that have been disassembled.:
If the pump has been disassembled, the oil should be
drained before a pressure test. Remove plug from motor housing. Apply pipe sealant to a pressure gauge
assembly and tighten into hole. Pressurize motor housing to 10 P.S.I. Use soap solution around the sealed areas
and inspect joints for “air bubbles”. If, after five minutes, the pressure is holding constant, and no signs of leaks
are observed, slowly bleed the pressure and remove the gauge assembly. Replace oil. If the pressure does not
hold, then the leak must be located and repaired.
CAUTION! Pressure builds up extremely fast. Too much pressure will damage seal.
Impeller face Clearance:
Proper Face clearance should come correctly preset from then factory. However, if the
pump is serviced or not performing correctly, the face clearance should be checked. To obtain proper pumping
performance the face clearance between the impeller (item 37) and the volute (item 39) should not exceed .025”.
Shim gaskets (item 38) can be added or removed to adjust the face clearance. The gasket is approximately .01”
thick.
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