34
Adhesive does not flow from
unit with motor pump
turning.
1. Adhesive tank has insufficient
amount of adhesive.
2. Loosen setscrew on pump or motor
shaft.
3. Manual Pressure Adjuster may be
set too low.
4. Blockage at the inlet in tank
keeping the adhesive from entering
pump.
5. Pump gears may be damaged.
Listen for grinding noise when
motor turns.
6. Improper adhesive operating
temperature setting. Temperature
set too low
1. Fill tank with adhesive to 1/3 rd full
2. Tighten set screw on pump or motor shaft
3. At operating temperature, turn Pressure
Regulator Valve clockwise all the way in,
with 10mm Allen Wrench until stops,
then back out 3 complete turns for initial
setup.
4. Clear obstruction. Clean tank screen.
5. Pump and gears needs to be factory
rebuilt.
6. Consult the specification sheet of
adhesive for proper application
temperature and adjust if necessary.
Allow time for the adhesive to stabilize
at the new temperature.
Hose Connection Leaks
Threads at hose connection not seated
properly
Tighten connection.
Hose not Heating
1. Hose not turned “ON” at panel.
2. Hose not plugged into correct
connector.
3. Wrong hose voltage rating selection
(i.e. 230VAC hose on 115VAC system)
4 Tank temperature is set too low at
front panel to melt product. The
hose will start heating after the
tank has reached approx. 80%
percentage of its set temperature.
5. Hose temperature set too low and/or
melt unit is in standby/setback.
6. Improper mating of pins in the
connector.
7. Loose circuit board connections.
8. Fuse(s)open on Input/Output
Power Board.
1. Turn Hose “ON” at panel.
2. Connect hose into correct connector.
3. Select correct hose voltage rating
4. Set Tank temperature to correct
temperature setting. Observe
adhesive recommended application
temperature
5. Set hose temperature to proper
setting. Verify the Hose Output LED
is flashing.
Disable standby/setback setting
6. Inspect and make sure connector pins
are not shorting to other pins. Remove
strain relief shell connector to inspect all
wires for damage or breakage.
7. With power disconnected, remove
front panel and inspect all
connections to the circuit boards.
8. Check fuse(s) with an ohmmeter on
Input/Output Power Board located on
backside of Front Control Panel.
Replace fuse with Fuse Kit P/N 989360
