Operating Manual
Initial Machine Set-up
01/07/00
13
6.
Connect the air hose adapter between the Proportioning Unit and hoses.
7.
Connect the coupling block to the gun hose and see that the manual valves are closed.
Air Purge
Prior to operation, it is necessary to purge the entire system of air and mineral oil left over
from the functional testing of the equipment.
To purge the machine proceed as follows:
1.
Turn on the main air supply.
2.
Pressurize the Transfer Pumps and open the A and R-Inlet Supply Valves. It is a
good practice at this point to check for material leaks
3.
Turn the Main Switch to ON. The White pilot light should come on followed by the
Amber pilot light
4.
Adjust the Air Pressure Regulator to zero. (Full counter clockwise).
5.
Switch the Pump Switch to NORMAL.
6.
Remove the gun from the coupling block
7.
Adjust both the Air Pressure
Regulators clockwise until the
pumps begin to move
(approximately 15-psi air pressure).
When the pumps reach the top of
their stroke, turn the pump switch to
OFF. This will facilitate easy access
to the pump lube cup on the
Isocyanate pump. Fill the lube cup
to about 1/4-inch from the top with
pump lube. (See Figure 5)
Figure 5 Pump Lube Cup Location
NOTE:
Properly discard both
materials in accordance
with applicable
environmental regulations.
8.
With the coupling block held over separate containers, open both manual valves and
turn ON pump switch. Allow both materials to flow out of the coupling block
simultaneously until all spitting of air stops and all traces of residual material have
disappeared and a solid flow of each material is seen.
9.
Switch the Pump Switch to OFF.
10.
Close both manual valves and wipe clean any residual material from the coupling
block.
11.
Mount the gun to the coupling block.
