User manual GRACO FF-2500 25942-1
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Manual abstract: user guide GRACO FF-250025942-1
Detailed instructions for use are in the User's Guide.
[. . . ] Model FF-2500 Proportioning Unit
Operating Manual 25942-1
February 12, 2004 Issue 4
GUSMER CORPORATION ®
A Subsidiary of Gusmer Machinery Group, Inc. One Gusmer Drive Lakewood, New Jersey, USA 08701-8055 Toll Free 1-800-367-4767 (USA & Canada) Phone: (732) 370-9000 Fax: (732) 905-8968 Copyright 2004, GUSMER CORPORATION ® http://www. gusmer. com
NOTICE: This manual contains important information about your GUSMER equipment. Read and retain for future reference.
Model FF-2500 Proportioning Unit NOTICE: The equipment described in this technical manual must only be operated or serviced by properly trained individuals, thoroughly familiar with the operating instructions and limitations of the equipment. Call: 1-800-FOR-GSMR (1-800-367-4767) for the name and telephone number of your local distributor.
NOTICE: All statements, information and data given herein are believed to be accurate and reliable but are presented without guarantee, warranty or responsibility of any kind expressed or implied. [. . . ] (The white pilot light should be ON. ) Adjust both air pressure regulators to zero. Adjust both the air pressure regulators clockwise until the pumps begin to move (approximately 15-psi air pressure). When the pumps reach the top of their stroke, turn the pump switch to OFF. This will allow access to the pump lubricant cup on the isocyanate pump. Fill the cup to about 1/4inch from the top with Gusmer pump lubricant (see Figure 13). Hold the coupling block with the A- and Rports over separate containers and open both manual valves.
3. If necessary, gradually adjust both the air pressure regulators clockwise to start the proportioning pumps moving slowly.
Please dispose of waste chemicals in accordance with applicable local, state, and federal codes.
10. Allow material to flow out of the coupling block until all spitting of air stops and all traces of residual material have disappeared. Close the manual valves and flush any residual chemical from the outside of the coupling block (see Gun Operating Manual). Slowly increase the air pressure and check all fittings for signs of hydraulic and chemical leakage. (See the Gun Operating Manual. ) IMPORTANT: After the proportioning system has been brought up to operating pressure and all hose connections are tight and free of leaks, wrap together the hoses and electrical wires around the area of the rubber isolators with a liberal amount of duct tape to form a compact bundle. If a scuff jacket is being used, pull it over the bundle and secure with tape.
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25942-1, Issue 4
Operating Manual
Operation
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. 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. 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. 8.
WARNING: UNCOIL 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. If the temperature set point needs to be changed, see Temperature Controllers on page 16. [. . . ] IMPORTANT: Clean the isocyanate pump screen during the start-up procedure only. This will minimize moisture contamination problems by immediately flushing out any isocyanate residue at the start of the dispensing operation. Switch OFF the pump switch and disconnect air from the proportioning unit. With the gun removed, point the coupling block into an appropriate container, open the corresponding manual valve of the side to be worked on and bleed chemical pressure to ZERO. [. . . ]
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