Maintenance
•Check double wall hopper heating fluid level monthly. Add fluid as needed.
•Do not overfill when using oil. See overfilling notice on page 18.
Maintenance
•Follow pump maintenance instructions in Husky 716 diaphragm pump manual 308981.
•Follow heater maintenance instructions in Viscon HP manual 309524.
Troubleshooting
Problem | Cause | Solution |
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Fluid fittings leaking. | Loose fittings. | Tighten fittings after system reaches |
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| desired temperature. |
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Hose not heating to desired tempera- | Diaphragm flow rate set too high. | Decrease diaphragm pump flow rate |
ture. |
| to 50 cycles/min. |
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| Problem with Viscon HP heater. | See troubleshooting in Viscon HP |
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| heater manual 309524. |
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Diaphragm pump not operating cor- |
| See troubleshooting in Husky 716 |
rectly. |
| diaphragm pump manual 308981. |
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Oil overflowing out vented hopper | Oil level higher than 3 in. (76.2 mm) | Lower oil level to 3 in. (76.2) below |
side fill port during startup. | below fill port at room temperature | hopper fill port. |
| and at rest. |
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Hopper not reaching set temperature | Temperature loss in heated hose is | Allow longer heating time. Insulate |
when heating fluid hose first. | too much for the heater capacity to | heated hose bundle. |
| compensate for. |
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Air and heating fluid splatter is exiting | Diaphragm in Husky 716 diaphragm | Replace pump diaphragm. See man- |
hopper vented fitting. | pump is cracked. | ual 308981 for parts. |
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313259D | 19 |