FULTON FT-0080C, Installation, Operation, Maintenance And Parts Manual

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FT-C Vertical Electric Thermal Fluid Heater Manual 12 2013 ISSUE 1
Page 35
3
!
CAUTION
1. Use extreme caution opening the plug when the system
temperature is elevated.
2. Wear eye and hand protection.
3. Back the plug out slowly to the last two or three threads. Allow any
pressure under plug to bleed slowly to prevent a spray of hot oil.
3.5.1
MECHANICAL/AIR COOLED SEAL
1. Open the air bleed connection located directly over the pump shaft. Replace plug when a steady
stream of thermal fluid, free of entrained air, flows from the port.
2. If flow has not started after two to five minutes, remove the coupling guard and rotate the pump
shaft by hand in the proper direction. This should help move the cold viscous fluid through close
tolerance seal areas. Replace plug when flow is steady.
3. If this fails to induce flow, introduce fluid through the bleed port and rotate the shaft by hand to
work the fluid around the seal area. Continue to add fluid and rotate the shaft until no more fluid
can be added.
4. Replace the plug and run pump for five to ten seconds. Stop the pump, remove the plug and
wait for flow to start. If after two minutes flow has not started, add more fluid as described above
and run the pump for five minutes.
5. Constantly check the bearing area (located immediately behind the casing) for overheating.
Remove the plug and check for flow.
6. If flow has not started at this point, the fluid may be too viscous to move through the seal area.
Start the system normally by selecting heat on the control panel, and raise the temperature
10°C. Continue to raise the system temperature by 10°C increments. Keep checking the pump
until flow starts.
3.5
CIRCULATING PUMP
1. Read manufacturer’s instruction manual thoroughly. If the pump is supplied by Fulton Ltd,
manufacturer’s literature is included in this manual.
Note: Do not run the pump before filling it with fluid.
2. The pump should never be run without fluid in the casing. For pumps equipped with mechanical
or air-cooled seals, air must be bled out of the stuffing box area to ensure that thermal fluid has
lubricated all seal and bearing areas. Operation of the pump even a short time without bleeding
first will damage the pump.
3. Also use the thermal fluid as a barrier fluid. Remove the 3/8” plug at the barrier fluid fill port. Fill
the cavity with thermal fluid until it comes out of the overflow tube. Replace the 3/8” plug.