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Related Manuals for Graco GUSMER D Series
Summary of Contents for Graco GUSMER D Series
- Page 1 Instructions Model D Spray Gun 311320K For use with non-flammable polyurethane foams. For professional use only. 1000 psi (7 MPa, 70 bar) Maximum Working Pressure Important Safety Instructions Read all warnings and instructions in this manual before using the equipment. Save these instructions.
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Page 2: Table Of Contents
Air Hose Connection ..... 11 Graco Standard Warranty ....28 Valving Rod Adjustment Screw . -
Page 3: Warnings
Warnings Warnings The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbols refer to procedure-specific risks. When these symbols appear in the body of this manual or on warning labels, refer back to these Warnings. Product-specific hazard symbols and warnings not covered in this section may appear throughout the body of this manual where applicable. - Page 4 Warnings WARNING FIRE AND EXPLOSION HAZARD Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. Paint or solvent flowing through the equipment can cause static sparking. To help prevent fire and explosion: • Use equipment only in well-ventilated area. •...
- Page 5 Warnings WARNING PRESSURIZED EQUIPMENT HAZARD Fluid from the equipment, leaks, or ruptured components can splash in the eyes or on skin and cause serious injury. • Follow the Pressure Relief Procedure when you stop spraying/dispensing and before cleaning, checking, or servicing equipment. •...
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Page 6: Important Isocyanate (Iso) Information
Important Isocyanate (ISO) Information Important Isocyanate (ISO) Information Isocyanates (ISO) are catalysts used in two component materials. Isocyanate Conditions Spraying or dispensing fluids that contain isocyanates creates potentially harmful mists, vapors, and atomized particulates. • Read and understand the fluid manufacturer’s warnings and Safety Data Sheets (SDSs) to know specific hazards and precautions related to isocyanates. -
Page 7: Material Self-Ignition
Important Isocyanate (ISO) Information Material Self-Ignition NOTICE Partially cured ISO will reduce performance and the life of all wetted parts. • Always use a sealed container with a desiccant dryer in the vent, or a nitrogen atmosphere. Never Some materials may become self-igniting if applied store ISO in an open container. -
Page 8: Component Identification
Component Identification Component Identification Model D Spray Gun Spring Retainer Case Valving Rod Closure Spring Valving Rod Positioner Valving Rod Adjustment Screw Valving Rod Stop Bar Valving Rod Gun Block Piston Rod Trigger Air Cap Adjustment Valve Coupling Block Coupling Block Mounting Screw . -
Page 9: Fluid Head Components
Component Identification Fluid Head Components Gun Block Mounting Screw Screen Screw O-Ring A-Iso Check Valve Closure Screw Valving Rod Assembly Seal Felt Wiper Retainer Screen Gun Block Snap Ring Mixing Chamber Case R-Resin Check Valve Screen Mounting Screw Air Cap Coupling Block Gaskets . -
Page 10: Operation
Operation Operation Manual Valves NOTE: Triggering gun with manual valves closed may cause crossover if gun ports contain residual chemical. To prevent accidental gun operation, always disconnect air supply before servicing gun or anytime gun is not in use. Grounding Never open manual valves unless coupling block is secured to gun or exit port is directed into flush pail. -
Page 11: Air Hose Connection
Operation Air Hose Connection Air Cap Adjustment Valve To connect air hoses, pull back sleeve of female fitting, Use to control amount of air that passes through air cap insert male fitting, and slide sleeve forward to secure and over mixing chamber tip. Airflow helps keep tip free connection. -
Page 12: Initial Set Up
Operation Clean Felt Wiper 8. Bleed air from chemical hoses: 1. Insert nozzle of flush can into holes of felt wiper. a. Hold coupling block with exit ports pointed into disposable container. 2. Saturate felt with gun cleaner. b. Open each manual valve to allow trapped air to Initial Set Up escape. -
Page 13: Daily Shutdown
Operation Pressure Relief Procedure 6. Test spray on disposable surface and adjust spray pattern as needed. (See Spray Pattern Adjustment procedure, page 14.) Follow the Pressure Relief Procedure whenever you see this symbol. NOTE: Do not exceed 1000 psi (7 MPa, 70 bar) maximum fluid working pressure even in static de-triggered conditions, or check valve damage may result... -
Page 14: Spray Pattern Adjustment
Spray Pattern Adjustment Spray Pattern Adjustment c. Point of valving is reached when chemical stream mists as shown in F . 11. This adjustment may create a large mass “bun” of urethane foam. Very high temperatures created by chemical reaction inside a bun may not dissipate after outside surface has cooled. - Page 15 Spray Pattern Adjustment 5. Fine tune spray pattern: c. If pattern splits or has hollow center, even with the adjustment screw at minimum number of a. After you back out adjustment screw, make fine turns from point of valving, material temperature adjustments (1/8 turns or less in either direction is too high.
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Page 16: Maintenance
Maintenance Maintenance Gun Service Kits Clean Spray Gun Use either the 1-Quart Gun Service Kit (296980) or 3-Gallon Gun Service Kit (296981) to perform daily flushing of spray gun without disassembly. Chemicals used while spraying may cause the gun surface to become hot to touch. Thoroughly flush gun block with gun cleaner before removing valving rod or mixing components from gun block. -
Page 17: Repair
Repair Repair 5. Inspect seal, and replace if worn or damaged. 6. Reinstall filter screen assembly. With seal in place, install screen and retainer clip-on screen screw. Shut down proportioner and allow chemicals to cool before performing any repair procedures. 7. -
Page 18: Adjust Valving Rod
Repair 4. Loosen felt wiper retainer 2-3 turns (DO NOT NOTICE REMOVE THE FELT WIPER RETAINER). To prevent damage to chamber, do not release trigger 5. Remove valving rod. Push back firmly on piston rod while cleanout spade is in chamber slot. until end of Stop Bar emerges from cylinder 7. -
Page 19: Remove Fluid Head Component
Repair Remove Fluid Head Component NOTICE Matching tapers on mixing chamber and center hole in NOTE: Refer to Figure 2 to view Fluid Head gun block are machined to an exact fit to hold components. chambers in place and create a leak-proof seal. When handling or cleaning these parts be careful not to 1. - Page 20 Repair b. Use check valve cleanout drill to clean inside of d. Insert spring assembly into check valve and turn closure screw. Insert the flattened end of the screw clockwise. When the spring is fully cleanout drill into opening at end of screw, inserted, stem will jump over spurs in screw and avoiding spurs in the closure screw.
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Page 21: Install Fluid Head Component
Repair Install Fluid Head Component chamber so it rests squarely on the chamber flange. Firmly tap insertion block with hammer until flange of chamber is flush with face of gun block (F . 27). NOTE: All gun block parts must be clean and free of damage before installation. -
Page 22: Parts
Parts Parts Model D Spray Gun Assembly 311320K... - Page 23 Parts Model D Spray Gun Assembly Ref. Part Description Qty. Ref. Part Description Qty. 111450 O-ring 295591 Hex nipple, 1/8 in. MPT, steel 296625 Coupling block gasket 295185 Mounting screw, 1/2 in. LG (pack of 2) 296090 Ball and spring assembly (pack of 296121 D gun block, complete 296091 Check valve sleeve (includes G, AA, AP)
- Page 24 Parts Table 3: Model D Gun Assembly, Parts by Mixing Chamber Size Mixing Chamber Size Reference Size 296578 296579 296580 K (valving rod) 296581 296582 296594 (N-800) 296597 (N) 296598 (N) 296599 (N) 296600 (N) 296595 (N-810) 296586 (L) 296587 (L) 296588 (L) 297592 (L) 296584 (L-800)
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Page 25: Air Cylinder Assembly
Parts Air Cylinder Assembly Part Number 296632 Ref. Part Description Qty. 1 107083 O-ring, fluoroelastomer 295494 Pan head machine screw, 8-32 x 3/16 in. 295177 Front head blank 4 296627 U-cup (pack of 5) 5 296628 U-cup (pack of 5) 295178 Cylinder 7... -
Page 26: Coupling Block Assembly
Parts Coupling Block Assembly Model 295887 Model 295884 Model 295887 (Standard) Model 295884 (Recirc) Ref. Part Description Qty. Ref. Part Description Qty. 295662 Flush seal pipe plug, 1/8 in. 295889 A-swivel fitting 295888 R-swivel fitting 296626 Manual valve assembly (pack of 2) 295889 A-swivel fitting 295619 Mounting screw... -
Page 27: Technical Specifications
Technical Specifications Technical Specifications Model D Spray Gun Metric Maximum fluid working pressure 1000 psi 7 MPa, 70 bar Maximum Air Inlet Pressure 100 psi 0.75 MPa, 7.5 bar Minimum Air Inlet Pressure 90 psi 0.6 MPa, 6 bar Maximum Output (flow rate) 7.3 kg/min* 16 lb/min* Minimum Output (flow rate) -
Page 28: Graco Standard Warranty
With the exception of any special, extended, or limited warranty published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be defective.