H-20/35 VR Series Proportioning Unit
20
42942-VR-1, Issue 1
8. Connect the Heated Hose Assemblies as follows:
NOTE:
The hoses are Connected end to
end during shipment to protect
them from moisture intrusion. Do
not separate the hoses until they
are ready to couple to the
proportioning unit.
IMPORTANT: Be sure to make proper hose connections. The connection points are
a potential source of chemical and air leaks and are the points most exposed to
damage from scuffing and snagging on abrasive surfaces. A liberal amount of duct
tape can be used in this area to make the bundle as compact as possible. Gusmer
strongly recommends installing the optional scuff jacket to protect the hose insulation
and TSU Extension Harness from damage.
a) Connect the Heated Hoses to the Isolation Hoses. Take care not to cross-thread
or over-tighten the fittings, ensuring a leak-proof chemical connection.
b) Tape the Isolator securely in place between the hydraulic fittings.
IMPORTANT: While the Isolator is no longer used to prevent an electrical short, its
purpose is now to protect the fittings.
™
Figure 10. Heated Hose Assembly Connections
c) Connect the Air Hoses and tighten the fittings with open-end wrenches.
d) Digital Hose Heat Machines Only: Connect the TSU Harness Plugs together.
To ensure a secure electrical connection, place the protective electrical isolator
boot over each plug and tape together.
e) Plug the Hose Heat Power-Lock™ Connectors together. Secure the connection
in place with the Cable Tie provided; failure to do so could cause a disruption in
the Hose Heat System.
*** Repeat Step 8 for adding additional Hose Assemblies. ***
9. Install the Temperature Sensing Unit (TSU) on the Gun Whip as follows:
a) Pull out and carefully straighten the loose end of the temperature probe
from the TSU.
