GUSMER FF-2500, Operating Manual

Page: 21 / 38

Operating Manual Operation
2/12/04 21
OPERATION
Daily Start-up Procedure
IMPORTANT: The Daily Start-up Procedures describe normal operation, assume
that all calibrations have been properly executed, and that the heating system is not
up to operating temperature.
1. Check the condition of the air system and isocyanate lubricant cup. Service as
required.
2. Determine that the supply system is at the proper temperature as recommended by
the system supplier, that the individual chemicals are properly mixed within their
drums, and that the moisture protection system is properly set for operation.
3. Adjust the pump packings, if required. The packing nuts on the iso and resin pumps
are adjustable and will require periodic tightening. The iso packing will require
tightening when the pump lubricant requires frequent changing.
4. Check the inlet screens and service as required.
5. Turn on the main air supply to the transfer pumps.
6. Open both A- and R-inlet supply valves.
7. Switch ON the main switch. The pilot light should be on.
8. Uncoil the heated hose assemblies.
WARNING: U
NCOIL THE HOSES BEFORE SWITCHING ON THE HOSE HEAT CIRCUIT BREAKER
TO PREVENT OVERHEATING THE HOSE ASSEMBLIES AND CREATING HOT SPOTS WITHIN THEM
.
9. With the hose heat power set fully counterclockwise, turn ON the hose heat circuit
breaker. If the temperature set point needs to be changed, see Temperature
Controllers on page 16.
10. Adjust the hose heat power set (clockwise) to between 45 and 50 amps (do not
exceed 50 amps).
Make small adjustments and allow the hose heater to stabilize in between. When the
liquid in the hoses reaches the desired temperature, the ammeter will cycle on and
off and temperature control will be completely automatic from this point. If 50
Amps cannot be achieved, refer to Troubleshooting, Hose Heat System on page 30.
11. Switch ON the primary heater circuit breaker. If the temperature set point needs to
be changed, see Temperature Controllers on page 16.
Set the desired temperature of the heater by making small adjustments to the
temperature control screw (clockwise to increase, counterclockwise to decrease) and
allowing the heater to stabilize in between.