Graco Dispensit 1093 Operation & Maintenance Manual
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Operation - Maintenance
Dispensit 1093
Patented meter and dispense system for precise one-component micro-dispensing.
2000 psi (14 MPa, 138 bar) Maximum Outlet Fluid Work-
ing Pressure
Metal Sleeves: 1200 psi (8 MPa, 83 bar) Maximum Mate-
rial Inlet Pressure
Plastic Sleeves: 400 psi (2.8 MPa, 28 bar) Maximum
Material Inlet Pressure
100 psi (0.7 MPa, 7 bar) Maximum Air Working Pressure
110°F (43°C) Maximum Ambient Temperature
150°F (65°C) Maximum Operating Temperature
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
313566J
EN
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Table of Contents
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Summary of Contents for Graco Dispensit 1093
- Page 1 Operation - Maintenance Dispensit 1093 313566J Patented meter and dispense system for precise one-component micro-dispensing. 2000 psi (14 MPa, 138 bar) Maximum Outlet Fluid Work- ing Pressure Metal Sleeves: 1200 psi (8 MPa, 83 bar) Maximum Mate- rial Inlet Pressure Plastic Sleeves: 400 psi (2.8 MPa, 28 bar) Maximum...
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Page 2: Table Of Contents
Operating Procedures ....15 Graco Information ......30... -
Page 3: Warnings
Warnings Warnings The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclama- tion 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. •...
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Page 5: Important Isocyanate (Iso) Information
Important Isocyanate (ISO) Information Important Isocyanate (ISO) Information Isocyanate Conditions Keep Components A and B Separate Spraying or dispensing fluids that contain isocyanates creates potentially harmful mists, vapors, and Cross-contamination can result in cured material in atomized particulates. fluid lines which could cause serious injury or damage •... -
Page 6: Changing Materials
Important Isocyanate (ISO) Information Foam Resins with 245 fa Blowing Agents Some foam blowing agents will froth at temperatures above 90°F (33°C) when not under pressure, especially if agitated. To reduce frothing, minimize preheating in a circulation system. Changing Materials NOTICE Changing the material types used in your equipment requires special attention to avoid equipment damage... -
Page 7: Grounding
Important Isocyanate (ISO) Information Installation Grounding Cycle Detection Spool Sensors The spool sensors are magnetic reed switches and must be connected to an electrical control. An LED on the switch illuminates to indicate the shifting of the spool. The equipment must be grounded to reduce the risk of static sparking. -
Page 8: Component Identification
Component Identification Component Identification Typical System Configurations Valve Controls CONTROL POWER System shown with optional controls 313566J... -
Page 9: Typical Feed System Components
Component Identification Typical Feed System Components 5 Gallon Pail Cover 5 Gallon Pail Cover with Diaphragm with Diaphragm Pump Pump and Agitator 20 oz Cartridge Feed with Mounting Post 1 Gallon Ram and Pump WARNING DO NOT SERVICE WITHOUT REMOVING AIR PRESSURE AND WEARING SAFETY GLASSES. -
Page 10: Typical Feed System Components (Continued)
Component Identification Typical Feed System Components (continued) 5 Gallon Tank with Diaphragm Pump and Stand 5 Gallon Tank with 5:1 Pump and Stand 10 Gallon Tank with Diaphragm Pump, Agitator, 10 Gallon Tank with 5:1 Pump, Agitator, Vacuum, Vacuum, and Stand and Stand 313566J... -
Page 11: Model 1093 Main Component Illustration
Component Identification Model 1093 Main Component Illustration 313566J... -
Page 12: Setup
Both options are position of the Metering Rod Connection Block (the typi- offered by Graco, but can also be supplied by the cus- cal “home” position). tomer. The inside diameter of the standard motor cou- pler is .25”. -
Page 13: Valve Mounting Diagram
Setup Valve Mounting Diagram Motor Mounting Diagram If using a non-Graco motor with the dispense valve, use the following diagram to install the non-Graco motor onto the valve. See Motor Specifications on page 29. 2.22 2.039 0.182 0.182 Ø 0.251 STANDARD 2.039... -
Page 14: Operation
Operation Operation Step 2: Shift The operation of the 1093 metering valve is controlled by an external source. If a control box was purchased, see the your control box manual for operation instruc- tions. See Related Manuals on page 2. Sequence of Operation Step 1: Reload •... -
Page 15: Operating Procedures
Operation Operating Procedures 6. Increase the material inlet pressure for loading. Recommended Material Supply Pressure A dry run demonstrates the valve's controls and dis- pensing steps. It also verifies that the valve is working Minimum - 20 psi (1.4 bar) correctly before you load materials. -
Page 16: Pressure Relief Procedure
4. Dispense five shots. Shots should be at least 75% of the full stroke. 5. Extend the metering rod into the tubes. If Graco controls are provided with the system, see your con- trols manual. See Related Manuals on page 2. -
Page 17: Maintenance
Maintenance Maintenance Perform the following procedures once a shift. NOTE: If material is leaking, see Troubleshooting on page 18. Material Reservoirs Check material levels and refill as necessary. Ensure the material reservoirs are properly vented. Air Dryer Check the condition of the desiccant air dryer. Replace as necessary. -
Page 18: Troubleshooting
Troubleshooting Troubleshooting Perform the Pressure Relief Procedure before per- forming any troubleshooting procedure. Problem Cause Solution Metering valve stalling and no material Blocked needle Check needle for cured material, being dispensed despite adequate replace as required input pressure Metering valve not discharging normal Low material level in reservoirs Fill material reservoirs and prime the or full volume... -
Page 19: Parts
Parts Parts 1093 Valve 138-142 † † The motor is not included with the valve. 313566J... -
Page 20: 1093 Valve Shared Components
Parts 1093 Valve Shared Components Part Description A2A05400 KIT, 1093, drive assy, stepper 95/0866/00 O-RING, vit A2010209 VALVE, 1093, main blk, ss, 2 in, etc 96/0509/98 SCREW, shc 16D002 CAP, end, air cyl, spl 95/0504/01 O-RING, buna 95/0601/01 SEAL, u-cp A2000009-1 PISTON, 1093, spool 01/2801-1/97... -
Page 21: Motor And Motor Coupling (A2A05400)
Parts Motor and Motor Coupling (A2A05400) Motor Coupling (219) Alignment Pin Lead Screw Nut (216) Pin Alignment 209,210 207,208 Ref. Part Description Qty. Ref. Part Description Qty. 217 01/2994-1/25 SCREW, lead screw, drive, 203 01/2983/97 PLATE, tie, front 1093 204 01/2982/97 PLATE, tie, back, pd44, 3 slot 219 01/2991-1/97 COUPLER, lead screw, pd44 206 01/2706-A/99 ROD, guide, 1093... -
Page 22: Needle Adapter Assembly (A2010029)
Parts Needle Adapter Assembly (A2010029) Ref. Part Description Qty. 301 A2000166 BLOCK, 1092, inlet, ss 302 A2000290 GASKET, 1092 303 A2000205 BLOCK, 1092 304 B4000016 SCREW, shc, ss 305 J1000002 PIN, roll, ss 306 B4000010 SCREW, sch, ss, 316 307 94/0300-1/98A FITTING, elbow 308 E4000016 ADAPTER 309 95/0904/00... -
Page 23: Rebuild
Rebuild Rebuild 7. Remove the needle block (303) from the inlet block Before proceeding, remove material feed line and pump (301). material out of the valve. Shut power off from control panel and disconnect main power. Disconnect the motor 8. Remove the inlet block (301) from the valve body wire harness from the system. -
Page 24: Assembly
Rebuild Assembly NOTE: Use caution when installing a new u-cup and Posipak seals so they are not pinched or torn. To do this, make sure the seals are lubricated and the lips of Before proceeding, remove any old o-rings or seals from the seal are tucked inward before uniformly pushing the valve and discard. - Page 25 Rebuild Install the Spool Wet Seal Retainer on the Main 12. Place the drive assembly (101), lead screw (217) Body and assembled unit in the retract position. 3. Install a lubricated o-ring (120) on the side of the 13. Insert the guide rods (206) through the lead screw retainer (114).
- Page 26 Rebuild Motor & Motor Coupling Assembly screws in a cross pattern gradually to prevent bind- ing due to misalignment. NOTE: Disconnect electrical power before servicing the motor and motor coupling assembly. 24. Push the spool rod (116) into the valve body (107) until it contacts the piston.
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Page 27: Model 1093 Recommended Spare Parts
Model 1093 Recommended Spare Parts Model 1093 Recommended Spare Parts NOTE: These parts are routine supply items or wear parts not covered by warranty for normal wear. Quantity Description Part Number SEAL KIT, 1093 see assembly drawing for part number DISPENSE SLEEVE see assembly drawing for part number METERING ROD... -
Page 28: General Guidelines For O-Rings And U-Cup Seals
General Guidelines for O-Rings and U-Cup Seals Sizes and materials of construction for o-rings and u-cup seals are selected by Graco based on compatibility with the chemicals to which they will be exposed. Solvents that may remove residual chemicals often have negative effects on the mechanical properties of o-rings and seals. -
Page 29: Technical Data
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Page 30: 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.
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