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Maintenance
Maintenance
•
Check double wall hopper heating fluid level
monthly. Add fluid as needed.
•
Do not overfill when using oil. See overfilling notice
on page 25. See Hopper manual 312747 for filling
instructions.
Troubleshooting
Problem
Fluid fittings leaking.
Hose not heating to desired
temperature.
Diaphragm pump not operating
correctly.
Oil overflowing out vented hop-
per side fill port during startup.
Hopper not reaching set tem-
perature when heating fluid
hose first.
Air and heating fluid splatter is
exiting the hopper vented fitting.
26
Cause
Loose fittings.
Diaphragm flow rate set too high.
Problem with Viscon HP heater.
- - - -
Oil level higher than 3 in. (76.2 mm)
below fill port at room temperature
and at rest.
The heater capacity cannot compen-
sate for temperature loss in the
heated hose.
Diaphragm in Husky 205 diaphragm
pump is cracked.
•
Follow pump maintenance instructions in Husky 205
diaphragm manual 308652.
•
Follow heater maintenance instructions in Viscon
HP manual 309524.
Tighten fittings after the system reaches
the desired temperature.
Decrease diaphragm pump flow rate with
air needle valve.
See Troubleshooting in Viscon HP heater
manual 309524.
See Troubleshooting in Husky 205 dia-
phragm pump manual 308652.
Lower oil level to 3 in. (76.2 mm) below
hopper fill port. See 20 gallon hopper
manual 312747.
Allow longer heating time. Insulate
heated hose bundle.
Replace the pump diaphragm. See man-
ual 308652 for parts.
Solution
3A5314B
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