Burford 8830, Service Manual, Page: 29 / 63

8-3
8.3 Restoring Product Flow
If the “CIRCULATE” is inadvertently turned off or the unit loses power for
and extended period, the viscosity of the product inside the tank may
become of too high to adequately flow through the system.
1. Turn on unit and select “PREHEAT”.
2. Shut the isolation valve located on front of product tank.
3. Disconnect inlet hose from valve to pump and manually flush butter
from line. It may also be necessary to remove and clean the elbow
and tee on the infeed side of the pump. Reconnect hose and fittings.
4. Turn on the “Tank Control” and adjust the setpoint to 95
°
F. Allow
product tank to heat to pre-set temperature.
5. Open isolation valve and verify the preheated butter has reached the
pump infeed.
6. Select “CIRCULATE” from the control panel. Check for fluid
circulating through the fluid lines and returning to the product tank.
7. Allow product temperature to stabilize, test application consistency
(purge nozzles), and then resume operation.
NOTE: System MUST be depressurized before disconnecting hoses.
NOTE: If the high pressure switch is made, the pump may cycle between
low and high speeds, trying to break the viscous fluid up and
restore flow.