Graco Gusmer H-20 Pro Operation page 18

4. Install Fluid Temperature Sensing unit (FTS) to gun
whip hose as follows:
a. Pull out and carefully straighten loose end of
temperature probe from FTS.
b. Insert temperature probe into isocyanate hose
and connect FTS to gun whip hose. To ensure a
leak-proof chemical connection, do not
cross-thread or over tighten fittings.
Ensure hose that contains FTS is kept insulated for
accurate hose bundle temperature readings.
c. Connect ground wire on gun whip hose to
ground point on FTS.
d. Connect heated hose assemblies to FTS. To
ensure a leak-proof chemical connection, do not
cross-thread or overtighten fittings.
Do not crush hose or bend hose where sensor is
located. Do not coil hose tighter than the recom-
mended 3 ft. (0.9 m.) minimum bend radius.
FTS Harness
F . 16: FTS Connection
IG
18
Gun Whip Power-Lock Connector
Ground Point
FTS
Isolator
Heated Hose Assembly
e. Connect FTS harness to FTS. To ensure a
secure electrical connection, place protective
electrical isolator boot over each plug and tape
together.
f. Connect and tighten air hoses.
g. Cut isolator in half crosswise and secure two
pieces in place between hydraulic fittings.
h. Plug Power-Lock hose heat connectors. Secure
connection with cable tie provided; failure to do
so will disrupt hose heat system if connectors
separate.
5. Connect main air source to end of air hose included
with heated hose assemblies.
6. Install optional hose scuff jacket (if used) over hose
lengths.
7. Connect coupling block to gun whip hose; ensure
manual valves are closed. See Gun Operation Man-
ual.
Ground Lug
Hose Heat
Isolator
Power-Lock
Connector
Air Hose
Initial Set-up
Gun Whip
Air Hose
TI9583a
311392C