POLYURETHANE
MACHINERY
CORPORATION
PH-2 SERVICE MANUAL
6. INSTALLATION
7. Ensure the Manual Valves are CLOSED and connect the Coupling Block to the Heated
Gun Whip.
CAUTION! Excessive force closing or opening the Man-
ual Valves may result in damage to the Manual Valves
and/or Coupling Block.
8. Connect the Transfer Pump/ Heated Hose Assemblies/Air Supply and Air Dryer sys-
tems as required. Review the Installation Instructions for each to ensure proper set-up
and operation.
9. Install the Material Transfer Pumps as follows:
WARNING! If Transfer Pumps have been previously used, pay
special attention to connect each Pump to its specific material.
Inadvertently changing the Transfer Pumps will cause a chemical
reaction rendering them useless.
NOTE! Placing a tape of the same color as of the Mate-
rial Delivery Hoses (red for the Iso (A), blue for the Poly
(R)) on each Transfer Pump would be a good method for
minimizing errors in connection.
a. Make sure that the Inlet Valves on the Proportioner are closed.
b.
Connect one end of the Polyol (R) Material Delivery Hose (3/4” thread)
to the Proportioner Polyol (R) Inlet Valve and the other end to the
Polyol (R) Transfer Pump.
c.
Connect one end of the Iso (A) Material Delivery Hose (1/2” thread)
to the Proportioner Iso (A) Inlet Valve and the other end to the Iso
Transfer Pump.
d.
Connect the air hose to the Transfer Pumps after ensuring each Transfer
Pump Shut-Off Valve is CLOSED.
NOTE! To avoid errors in connection, the Coupling con-
nections of the Iso (A) and Poly (R) Material Delivery
Hoses are different sizes, making it difficult to swap con-
nections.
10. Ground the Transfer Pump as recommend by the material supplier. The movement of
product inside the Hoses can cause static electricity and produce electrical discharges.
11. Connect air to the air line coming off the first section of hose (90-110 psi, 6-8 bar)
REVISION 1.2 22
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