Service Manual
25/46
Issue 3.1
Ref. NR-00019-ENG
http://www.gamapur.com/
CAUTION!
Use suitable protection and follow the recommendations in the safety
information provided by product suppliers when installing or working with the unit.
NOTE:
To ensure that the unit works correctly, the electrical supply must meet the
specifications indicated on page six of this manual and appearing on the machine
specifications plate.
Follow the recommended procedure in the indicated order to install the unit:
a) Fill the Isocyanate pump lubricating cup with DOTP plasticizer.
b) Connect the hoses of the products to the outlets of the respective heaters (the
Isocyanate hose to the Isocyanate heater and the Polyol hose to the Polyol heater).
NOTE:
The product hoses have been identified with red (Isocyanate) and blue (Polyol),
enabling them to be rapidly distinguished. To avoid errors in connecting the coupling
connectors of the Isocyanate and Polyol hoses, the connectors are of different sizes to
make it impossible for connections to be swapped.
The hoses receive vacuum drying treatment and are supplied interconnected at the ends to
prevent them from absorbing moisture. Do not separate them until they are going to be
installed in the unit.
The hose connection system includes special terminals (fast lock) to facilitate the electrical
connection to the transformer and between the different sections installed in the unit.
The transformer offers the option of connecting to a 40 V output voltage valid for a total hose
length of up to 48 meters.
c)
Connect the heated hoses wires to the “fast
lock” connector coming out of the hose
transformers as follow:
a. Unscrew the Nylon Safety Plug from the
“fast lock” connector body.
b. Unscrew partially the Socket Head Set
Screw from electrical wires.
c. Insert the heated hose electrical wire
with terminals into
the “fast lock”
connector body.
d. Tighten the Socket Head Set Screw of
the terminals and place the Nylon
Safety Plugs
Repeat the same steps to connect the “fast lock” that
you will find in the middle hose connections.
d) Connect the rest of the product hoses to complete the required length. Remember that
the hoses are identified with red (Isocyanate) and blue (Polyol).
WARNING!
To join the hoses together or to connect them to the heaters or the gun,
use two spanners to hold the parts to be joined (1) and a third spanner to tighten or
loosen the connecting nut (2) as shown in the illustrations in Figure 3 on page 16. The
connections must be tightened to a torque of 20 Nm.
INSTALATION (HEATED HOSES UNIT)
