ESH150
–3PE~400V
Service Manual
23/56
Ref. NR-000144-ENG
The hoses have been subjected to a vacuum-drying treatment and are delivered with their ends
joined to prevent humidity from entering them. Do not separate them until the moment they are
to be fitted to the unit.
Proceed as follows to prepare the unit:
d) Remove the front protective covering from the pump guides and
fill the lube reservoir of the isocyanate pump with DOTP
plasticizer.
e) Connect the hose for each product to the outlet of its respective
heater (the isocyanate hose to the isocyanate heater and the
polyol hose to the polyol heater).
NOTE:
The hoses are colour-coded for easy identification: red for
isocyanate and blue for polyol.
To prevent connection errors, the isocyanate and polyol
hose couplers are of different sizes, which makes it impossible to connect a hose to the
wrong heater.
Figure 3
.
Hose coupling method
WARNING!
To join hoses to each other, to the heaters, or to the gun, hold each hose
end in place with a spanner (1), and with a third spanner tighten or loosen the coupling
nut (2) as required (see Figure 3, pg.23).
The tightening torque for these unions must be
that indicated according to the procedure on page 21.