evolution G-35 H
Service Manual
24/45
Issue 1.9
Ref. NR-00103-ENG
http://www.gamapur.com/
Follow the recommended procedure in the indicated order.
PRECAUTION!
The start-up procedures assume that all of the necessary adjustments
have been correctly performed.
a) Check the state of the DOTP plasticizing oil in the lubrication tank of the Isocyanate
pump. Change the oil if you see changes in the color or signs of solidification.
b) Check the hydraulic oil level. Add oil if the level is low.
c) Make sure that the chemical products to be processed are
above the minimum temperature required to be supplied to
the unit through the transfer pumps. Ask your product
supplier
for
information
on
the
minimum
supply
temperature.
d) Check the input filters of the products. Clean them if
necessary.
e) Pressurize the two transfer pumps and open the inlet
valves of the products to the unit.
f) Turn the general switch ON. The top pilot light will come on.
g) Press the POWER CONTROL key. The led will light.
h) Press the ISO key under the HOSES display. The led will light in the center of the key.
In machines fitted with two transformers, the ISO and RESIN keys must be pressed.
The two leds will light.
i)
Press the ISO and RESIN keys under the HEATERS display when the products in the
hoses reach the working temperature. The two leds will light.
PRECAUTION!
To avoid excessive pressure in the heating hoses, wait for the product
in them to reach the required temperature before starting up the hydraulic system.
j)
Press the MOTOR key. The led will light.
k) Press the NORMAL key. The led will light. One of the direction indicator lights will come
on and the dosing pumps will begin to move.
l)
Using the hydraulic pressure regulator, adjust the required pressure and check the
pressure of each dosing pump on their respective gages on the machine outlet.
Regulate the hydraulic system so that the output pressure of the unit
never exceeds the pressure of work of the installed product hoses.
The pressures must be practically the same and remain constant. The directional
indicator lights must remain with one on and the other out. The lit lamp indicates the
direction of movement of the pumps.
If the pressure fluctuates on either stroke, consult the fault section before continuing.
m) Connect the air supply to the gun; open the manual valves of each product; make a test
projection and check the pressures on the product gages. If the projection test is correct
and the pressures remain equal, proceed with the application
START - UP PROCEDURES
