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GUSMER D Operating Manual

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Model D
Spray Gun
Operating Manual
2943J-1-D
November 3, 2003
Issue 3
®
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 2003, GUSMER CORPORATION
http://www.gusmer.com
NOTICE: This manual contains important information about your GUSMER equipment. Read and retain for future reference.

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Summary of Contents for GUSMER D

  • Page 1 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 2003, GUSMER CORPORATION http://www.gusmer.com NOTICE: This manual contains important information about your GUSMER equipment. Read and retain for future reference.
  • Page 2 Statements or suggestions concerning possible use of GUSMER equipment are made without representation or warranty that any such use is free of patent infringement, and are not recommendations to infringe any patent. The user should not assume that all safety measures are indicated or that other measures may not be required for a particular circumstance or application.

  • Page 3: Table Of Contents

    Operating Manual Contents CONTENTS LIST OF FIGURES......................4 WARRANTY ........................5 GENERAL SAFETY INFORMATION ................. 6 ..................6 CCEPTABLE QUIPMENT ................7 PERATIONAL AFETY ROCEDURES DESCRIPTION ........................ 8 ......................9 ERVICE SPECIFICATIONS ......................10 OPERATION........................11 ......................11 OUPLING LOCK Manual Valves ......................

  • Page 4: List Of Figures

    Model D Spray Gun LIST OF FIGURES 1. M ..................8 IGURE AJOR OMPONENTS 2. C ................8 IGURE ENTERLINE OMPONENTS 3. 1-Q (P/N OP205) ............9 IGURE UART ERVICE 4. 3-G (P/N OP206) ............9 IGURE ALLON ERVICE 5. M ....................11 IGURE ANUAL ALVES 6.

  • Page 5: Warranty

    Gusmer through the sale, lease, or rental of Product in no way expresses or implies a license for the use of, nor encourages the infringement of any patents or licenses.

  • Page 6: General Safety Information

    Under no circumstances should any acid or corrosive chemicals be used in the unit. Consult GUSMER if there is any doubt about the compatibility of the chemical system to be used in this equipment.

  • Page 7: Operational Safety Procedures

    Operating Manual General Safety Information Operational Safety Procedures This safety information will not be repeated in the text of this manual. The symbols pertaining to this information will appear where appropriate to alert the operator to potential hazards. WARNING: T HE SOLVENTS AND CHEMICALS USED WITH THIS EQUIPMENT EXPOSE THE OPERATOR TO CERTAIN HAZARDS DEQUATE PERSONAL PROTECTIVE MEASURES MUST BE...

  • Page 8: Description

    Model D Spray Gun DESCRIPTION In order to gain a thorough understanding of the Model D Spray Gun, please take time to become familiar with its Major Components (see Figure 1) and its Centerline Components (see Figure 2). This will be helpful later when these items are covered in the manual.

  • Page 9: Gun Service Kits

    Operating Manual Operation Gun Service Kits Cleaning the Model D Spray Gun with the 1-Quart Gun Service Kit (P/N OP205) or the 3-Gallon Gun Service Kit (P/N OP206) is essential to its proper operation. Both kits are available separately. Figure 3. 1-Quart Gun Service Kit (P/N OP205) See 1-Quart Gun Service Kit Parts Identification Manual (P/N OP205-ID) for complete part number information.

  • Page 10: Specifications

    Model D Spray Gun SPECIFICATIONS AIR SUPPLY: 90-100 psi (6-7.5 bars) WEIGHT: 3 lbs (1.4 kilograms) DIMENSIONS: Height: 8 inches (20 centimeters) Length: 9.25 inches (24 centimeters) Width (without coupling block): 2.4 inches (6 centimeters) OPERATING PRESSURE: 1000 psi maximum (70 bars) OUTPUT: Maximum: 16 lbs./min.

  • Page 11: Operation

    Operating Manual Operation OPERATION WARNING: B ODILY INJURY AND OR PROPERTY DAMAGE MAY RESULT FROM ACCIDENTAL . DO NOT OPERATION OF THE GUN POINT THE GUN AT OR NEAR OTHER PERSONNEL OR PLACE . DO NOT ANY PART OF THE BODY IN THE PATH OF THE MATERIAL SPRAY AT ANY TIME LOOK INTO THE DISPENSING END OF THE GUN LWAYS CLOSE BOTH MANUAL VALVES AND...

  • Page 12: Installation And Removal

    Remove the coupling block mounting screw. Figure 6. Coupling Block d) Separate the coupling block from the gun. Take care not to lose the two gaskets. e) Using a clean cloth dipped in gun cleaner, wipe clean the mating surface of the gun block and coupling block to remove residual chemical.

  • Page 13: Air Cap Adjustment Valve

    Operating Manual Operation Air Cap Adjustment Valve The knurled knob inside the gun handle controls the amount of air that passes through the air cap and over the mixing chamber tip. This airflow helps keep the tip free of sprayed chemical. Too much air can adversely effect spray pattern and create undesirable amounts of overspray.

  • Page 14: Initial Set Up Procedure

    Model D Spray Gun Initial Set Up Procedure TOOLS REQUIRED • • 5/16” Nut driver Clean rag • • (2) 6” Adjustable wrench Gun cleaner • • 5/64” Hex key Disposable container WITH THE COUPLING BLOCK REMOVED FROM THE GUN: 1.

  • Page 15: Daily Start-Up Procedure

    Operating Manual Operation Daily Start-Up Procedure TOOLS REQUIRED • 5/16” Nut driver WARNING: B EFORE ATTEMPTING THE FOLLOWING PROCEDURES MAKE SURE THE GUN IS ATTACHED TO THE COUPLING BLOCK AND AIR HOSE THE PROPORTIONING UNIT IS AT THE DESIRED TEMPERATURE AND PRESSURE AND THE SYSTEM IS READY FOR OPERATION ROPERLY GROUND EQUIPMENT TO AVOID STATIC SPARKING THAT COULD RESULT IN FIRE OR EXPLOSION...

  • Page 16: Spray Pattern Adjustment

    Model D Spray Gun Spray Pattern Adjustment WARNING: T (“ ”) HE FOLLOWING PATTERN TEST MAY CREATE A LARGE MASS URETHANE FOAM WHICH CAN BE DANGEROUS ERY HIGH TEMPERATURES CREATED BY CHEMICAL REACTION INSIDE A BUN MAY NOT DISSIPATE AFTER THE OUTSIDE SURFACE HAS...

  • Page 17: Figure 14. Opening The Spray Pattern

    Operating Manual Operation 1. V ABLE ALVING DJUSTMENT FOR TANDARD IXING HAMBERS Chamber Minimum Maximum Recommended Size of Pattern Distance of Gun From Surface 46-800 1/2 turn 2 turns 12 in. (304-8 mm) 6 in. (152.4 mm) 46-810 1/2 turn 2 turns 12 in.

  • Page 18: Figure 16. Split Pattern

    Model D Spray Gun If the pattern splits or has a hollow center, even with the adjustment screw at the minimum number of turns from the point of valving, it is likely that the material temperature is too high. After reaching a satisfactory spray...

  • Page 19: Cleaning Procedure

    Operating Manual Cleaning Procedure CLEANING PROCEDURE TOOLS REQUIRED • 5/16” Nut driver • 1-Quart Gun Service Kit or 3-Gallon Gun Service Kit • Flush can The gun block must be thoroughly flushed with gun cleaner before removing the valving rod or mixing components from the gun block. Cleaning ensures that any residue left from the two components will be diluted, eliminating further chemical reaction of the components when the gun block components are removed.
  • Page 20 Model D Spray Gun 5. REMOVE THE SERVICE BLOCK OF THE GUN SERVICE KIT FROM THE 6. DISCONNECT THE AIR SUPPLY 7. CLEAN SCREENS, CHECK VALVES AND SCREEN SCREW- (See Filter Screen Removal And Service on page 21.) IMPORTANT: Inspect the air cap, mixing chamber and gun block for build up of material and clean them as required.

  • Page 21: Servicing Procedures

    Operating Manual Servicing Procedures SERVICING PROCEDURES WARNING: S HUT DOWN PROPORTIONER AND ALLOW CHEMICALS TO COOL BEFORE ATTEMPTING SERVICING PROCEDURES Filter Screen Removal And Service TOOLS REQUIRED • • 5/16” Nut driver Pin vise w/collets • • Clean out drill assortment Flush can WARNING: P ROPERLY GROUND ALL EQUIPMENT INVOLVED IN THE CLEANING OPERATION...

  • Page 22: Cleaning Injection Slots

    Model D Spray Gun Cleaning Injection Slots The injection slots in the mixing chamber must be cleaned when dirt or material builds up in the slot, resulting in spray pattern deformation. The slots may be cleaned without disassembly of the gun as follows: 1.

  • Page 23: Valving Rod Adjustment (Closed Position)

    Operating Manual Servicing Procedures Valving Rod Adjustment (Closed Position) TOOLS REQUIRED • 5/16” Nut driver • 6” Adjustable Wrench WARNING: P ROPERLY GROUND ALL EQUIPMENT INVOLVED IN THE CLEANING OPERATION TO AVOID STATIC SPARKING WHICH COULD RESULT IN FIRE OR EXPLOSION O NOT CLEAN ON OR NEAR FOAMED OR COATED SURFACES OR OTHER FLAMMABLE SURFACES OR OBJECTS In the closed position, the valving rod...
  • Page 24 Model D Spray Gun 8. LOOSEN THE VALVING ROD POSITIONER- Use the 6” adjustable wrench on the positioner, while holding the valving rod stop bar with 5/16” nut driver. Turn the positioner to adjust the length of the valving rod as required. Retighten the stop bar against the positioner.

  • Page 25: Centerline Component Removal

    • Razor knife Flush can The centerline components consist of the following (see Figure 22): (See also D Gun Parts Identification Manual 2943J-ID for complete part number information.) Figure 22. Centerline Components 1. PERFORM GUN CLEANING PROCEDURE- See CLEANING PROCEDURE on page 19.

  • Page 26: Figure 23. Mixing Chamber Removal

    Model D Spray Gun 8. REMOVE VALVING ROD- Push backward firmly on the piston rod until the end of the valving rod stop bar emerges from the cylinder. 9. REMOVE GUN BLOCK FROM FRAME- Loosen the mounting screw with the 5/16”...

  • Page 27: Figure 25. Sleeve Removal Block

    Withdraw the tool from the gun block. The sleeve should slide out with it. d) INSTALL THE BALL AND SPRING ASSEMBLY- Check the underside of the ball. If damage or deformation is seen, use a new ball and spring assembly.

  • Page 28: Centerline Component Installation

    Model D Spray Gun Centerline Component Installation TOOLS REQUIRED • • 5/16” Nut driver 4 oz. Ballpein hammer • • Mixing chamber insertion block Flush can • 5/16” x 3/8” Open-end wrench 1. INSPECT GUN BLOCK AND GUN BLOCK PARTS BEFORE ASSEMBLY- All parts must be completely clean and free of damage.
  • Page 29 Operating Manual Servicing Procedures 5. MOUNT GUN BLOCK ON GUN FRAME- With the O-ring in place on the underside of the gun frame, assemble the block to the frame and tighten the mounting screw using the 5/16” nut driver. 6. INSTALL VALVING ROD ASSEMBLY- If a new felt wiper is being used, push the valving rod through the felt with the retainer case off the chamber, remove the felt wiper and remove any felt buildup on the tip.

  • Page 30: Appendix

    APPENDIX Standard Mixing Chambers Six standard mixing chambers are available for use with the GUSMER Model D Spray Gun. Below is a general description of the use and operational performance of each chamber. Actual pattern sizes and outputs achieved may vary depending on material viscosity, hose length, condition of equipment, environment, working pressure, etc.

  • Page 31: Instruction Manual Discrepancy Report

    Date of Issue Page Number Discrepancy Instructions: Complete the above fields of the form by following the instructions listed on the reverse side of this sheet and mail to: Gusmer Corporation One Gusmer Drive PO Box 2055 Lakewood, NJ 08701 11/3/03...
  • Page 32 Model D Spray Gun Field Field Title Description Number Date Enter date report is submitted. Name Enter name of person making report. IM Number Enter the Part Number of the Instruction Manual from the title page. Issue Number Enter the Issue number of the Instruction Manual from the title page. If there is no issue number, enter NONE.

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