Operating Manual
Operation
5/5/97
15
After you have developed a satisfactory pattern, take note of the
temperatures you are using and the position of the notch on the adjustment
screw. As you proceed to spray, the pattern may, on occasion, start to
streak or change from what was established. If you notice this happening,
check that solid foam has not built up on the chamber tip. If there is
buildup, remove it with your fingernail or a soft wire brush. If the buildup
recurs shortly after cleaning the tip, remove the air cap and insure it is clean
on the inside.
If there was no buildup on the air cap, check for the following items in this
order:
a)
Compare the adjustment screw setting to insure it has not
changed from where it was set. If it has turned, relocate it
to the proper position and tighten down on the friction lock
screw.
b)
Check that the hose temperature has not drifted from what
was established. If it has, make the appropriate adjustment
on the temperature control to correct it.
c)
Check the primary heater temperature and make the
necessary adjustments to correct any deviation from that
desired.
d)
Insure that the spray pressures between the chemicals are
balanced. If they are not, refer to the Trouble-Shooting
Procedures Section of the manual for the proportioner in
use.
e)
Insure the flow of air to the air cap is adequate but not
excessive.
Shut-down periods can be classified into three categories, and are
discussed in greater detail in the order presented.
1.
There will be short periods when the gun will not be used, but the
balance of the equipment will remain ready for operation.
Examples would be when moving scaffolds, answering telephone
calls, refilling or changing supply containers, etc.
Although it is not mandatory, we suggest that you close the
RESIN
manual valve. The purpose is merely to positively isolate one side
of the equipment from the other, thus eliminating any possibility of
seepage across the valving rod while the gun lies idle.