ESH150
–3PE~400V
Service manual
32/56
Ref. NR-000144-ENG
WARNING!
To avoid excess pressure in the heating hoses, wait for the products
contained in the hoses to reach the required temperature before starting the hydraulic
system.
m) Press the MOTOR button. The LED will light up.
n) Press the NORMAL button. The LED will light up. One of the direction indicator lights
comes on and the proportioning pumps begin to operate.
o) Rotate the hydraulic pressure regulator to reach the required pressure and check the
pressure of each proportioning pump on the respective pressure gauges at the unit’s
outlets.
The hydraulic circuit should be regulated to ensure that the unit’s output
pressure never exceeds the working pressure of the product hoses fitted
to the unit.
p) Set the isocyanate heater temperature.
q) Set the polyol heater temperature.
r) Set the hose heating temperature and/or intensity (if applicable).
s)
Close the recirculation valves if open and open each product’s manual valves on the
gun. Perform a test spray an
d check the pressure readings on each product’s pressure
gauge. If the test spray is satisfactory and the pressure readings remain identical,
proceed with application.
Pressure readings should be practically identical and should remain constant. One
direction indicator light should remain on and the other off. The light which is on
indicates the direction of movement of the pumps.
If the pressures oscillate with each movement, consult the Malfunctions section before
continuing.
