1.
To replace the tank thermostat you must first remove the pump.
If the temperature of the tank is below 120
°
C (250
°
F) it may not be
possible to remove the pump until the melter is reheated.
To reheat the melter:
Replacing the Tank Thermostat
a. While pressing both the Setup and the Tank
key, cycle the control switch off and then on
again. The left display will flash to indicate that
the melter is heating in the override mode. The
melter will continue to reheat for 20 minutes and
then automatically switch off.
b. To continue reheating the melter, repeat step a.
until the melter reaches 120
°
C (250
°
F).
2.
Switch the melter off.
a. Rotate the isolation valve handle upward
until it is vertical.
4.
Remove the pump as follows:
3.
Relieve system hydraulic pressure. Refer to the
melter manual for information on relieving hydraulic
pressure.
b. Remove the three pump-mounting bolts.
c. While pulling the pump away from the
manifold, tilt the top of the pump toward the
front of the melter and then remove the air line
from the back of the pump.
d. Lift the pump clear of the melter.
Note:
The face of the pump body contains two
M6 threaded holes. Bolts can be threaded into
these holes to gain leverage when removing the
pump.
