Fulton Vertical Electric (FT-N) Thermal Fluid (hot oil) Heater - Manual (Page 21)

Fulton Thermal Corp.*Electric Thermal Fluid Heaters Manual* Version 2010-0423
Page 21
f) Lubrication
1. An air cooled pump does not have an oiler. This type of pump has a
sleeve bearing which is, like the seals, lubricated by thermal fluid. An air
cooled pump has a grease nipple located at the drive end of the pump
near the coupling connection. This comes pre-greased, and should be
greased at intervals as recommended by the manufacturer.
2. An oiler is shipped with each water cooled pump and it should be filled
with a lubricating oil recommended by the manufacturer. The suggested
lubricant is usually SAE-30 non-detergent oil. Thermal fluid is not
sufficient lubrication for bearings.
g) Seals
1. All seals on air cooled pumps are lubricated by thermal fluid, therefore
the pump must never be run dry, i.e., without thermal fluid in it.
2. Filling a pump equipped with either a Grafoil packed or mechanical seal
with thermal fluid will ensure lubrication. However, in order to be certain
that all seals on an air cooled pump are coated with thermal fluid, the
pump must be bled.
3. Grafoil packings require a run-in procedure. Typically, pumps with these
seals are shipped with four or five rings installed and several rings loose.
These extra rings must be on hand for the initial run-in procedure. See
manufacturer’s instruction manual for this procedure.
h) Air Cooling
1. Allow for free air flow around the entire pump casing at all times.
2. Max. room temperature should be 100°F.
3. In no case should any part of the drive side of the pump be insulated.
4. Max. operating temperature for air cooled pumps varies by manufacturer.
Consult instruction manual to verify.