Service Manual
19/46
Issue 3.1
Ref. NR-00019-ENG
http://www.gamapur.com/
Follow the recommended procedure in the indicated order.
CAUTION!
The start-up procedures assume that all of the necessary adjustments have
been correctly performed.
a) Check the state of the DOTP plasticizer in the Isocyanate pump lubrication cup.
Change the oil if you see changes in the color or signs of solidification and retighten the
packing nut to ensure the seal.
b) Make sure the chemical tanks are fill of material.
c) Check the inlet filters of the products. Clean them if necessary.
d) Open the product manual valves at the bottom of the tanks.
e) Open the manual recirculation valves.
NOTE:
Do this if you’re willing to recirculate products.
NOTE:
Product recirculation allows reaching the set up temperature in the heaters
quicker, heating the hoses and the gun at the same time. For more effectiveness for
heating the products whilst recirculating, fill the product tanks with the minimum
quantity required.
CAUTION!
Product tanks are made of a plastic material which resists up to 80 ºC.
Product temperature inside the tanks must never reach that limit.
CAUTION!
Do not recirculate with full tanks, since over pressure may occur in the
interior of the tanks.
f) Turn the general switch
“ON”.
g) Open the
“RETRATC” valve, (vertical position).
h) Push the
“START” green button. The temperature regulator displays will light on,
(whenever the switch of the heaters is in “On“). Check the product pumps begin to
move slowly.
i) Using the air pressure regulators, first of all select the pressure for the down stroke of
the proportioning pumps and then adjust the pressure for the up stroke. The pressures
must be practically the same and remain constant.
j) If the pressures fluctuate on each stroke, check the troubleshooting section before
continuing.
k) Set the temperature on the Isocyanate Regulator
l) Set the temperature on the Polyol Regulator.
m) Connect the air supply to the gun.
n) Close the recirculation valves; should these be open, open the manual gun valves of
each product; make a test projection and check the pressures on the product gauges. If
the projection test is correct and the pressures remain equal, proceed with the
application.
START-UP PROCEDURES
