Shrinkfast 998 Operatin
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Shrinkfast 998 Operatin

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Operating, Field Maintenance,
and Parts Manual
Model
998

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Summary of Contents for Shrinkfast 998

  • Page 1 Operating, Field Maintenance, and Parts Manual Model...

  • Page 2: General Safety Precautions

    General Safety Precautions Never point the gun at anyone. Inspect hose before each use for breaks or weakened spots. Always shut off valve at tank when leaving the gun unattended for any length of time. WARNING: DO NOT TOUCH WIRE METAL SHIELD AFTER GUN HAS BEEN FIRED.

  • Page 3: Table Of Contents

    Table Of Contents I. Introduction I. Introduction The New SHRINKFAST Model 998 heat shrink tool has evolved from the previous II. Which Bag To Buy models 975 and 305X. The major new fea- III. Which Tank To Use tures include cool combustor, lightweight, IV.

  • Page 4: Which Bag To Buy

    II. Which Bag To Buy away from the pallet. Therefore, they should Bag makers can usually be found in the be bought longer than the pallet height, and Yellow Pages under Packaging Supply special care should be taken in the bottom Houses or Bags –...
  • Page 5 To calculate the width, add: 1. The two sides 30” 47” 77” 2. Fitting allowance 4” WIDTH 81” To calculate the length, add: 1. 1/2 of the short side 15” 2. The height 36” 3. Shrink allowance – 1” for each foot of height 3”...

  • Page 6: Which Tank To Use

    III. Which Tank To Use tank may drop to 0°F usually accompanied Two types of tanks are commonly available: by icing on the outside, and the propane liquid withdrawal and vapor withdrawal. It is pressure drops below 15 PSI. DO NOT RUN crucial to use the vapor withdrawal type.

  • Page 8: Ventilation Requirements

    IV. Ventilation Requirements as much CO). To maintain a safe CO concentration of 50 In operation, the gun consumes propane parts per million (OSHA standards and air and produces carbon dioxide, car- 1910.93), the ventilation requirements are bon monoxide, and water vapor. 2000 cu.ft./min.

  • Page 9: Operating Instructions

    V. Operating Instructions...

  • Page 10: Controls

    A. Controls No. Part Function Safety Trigger Prevents accidental gas release Gas Handle Actuates gas valve and igniter Gas Valve Open fuel flow Igniter Fires piezoelectric spark igniter Fuel line Carries fuel to orifice Filter Prevents clogging Orifice Meters fuel Spark Plug Ignites mixture Flame Holder...

  • Page 11: Connections

    C. Start-Up 3. The 998 heat tool comes complete with After all connections are made and checked a variable regulator assembly. The tool will for leaks, the gun is ready for use. Open the operate properly between 15 and 30 PSI.

  • Page 12: How To Shrink

    In so doing, 1. Palletizing the bag is locked to the pallet, thereby uni- Your SHRINKFAST gun consumes oxygen tizing the load. and must be used only in well ventilated d. To side shrink, do one side after anoth- areas.

  • Page 13: Patching

    due to it already having been pulled taut If this is not done, the effectiveness of through shrinkage of the four sides. shrink palletizing is considerably reduced. f. The pallet is now ready for shipment. Lift 2. Patching truck forks may be driven through the film Occasionally, holes will appear in the film.

  • Page 14: Service Information

    Adjoining sheets should have an 18” over- IV. Service Information lap. This overlapping allows the sheets to Note: Letters Keyed To Text On Following weld together during the shrink process. Pages. The sheets must be secured at the base of the load using the weight of the load or by battens tacked to the skids or any other method that may be expedient.

  • Page 15: Principles Of Operation

    A. Principles Of Operation flame holder (F) prevents flashback (where the flame travels back into the jet pump) The SHRINKFAST 998 introduces a signifi- and the flame out (where the flame is blown cantly improved jet pump based on using a out of the combustor).
  • Page 16 combustor outlet. temperature and velocity of the output decrease as a function of distance away 4. Expansion. By virtue of the internal com- from the gun. bustion process at elevated pressure a por- tion of the heat energy is converted to exhaust gas velocity.
  • Page 17 B. Troubleshooting Guide The majority of the problems arise from using a liquid withdrawal instead of a vapor withdrawal tank. CHECK THIS ITEM FIRST. PROBLEM PROBABLE CAUSE REMEDY Gun won’t fire Handle not depressed fully. Depress handle all the way until igniter fires with a click.
  • Page 18 Troubleshooting Guide continued PROBLEM PROBABLE CAUSE REMEDY Clogged orifice and/or filter Remove and clean with compressed air. Clogged hose. Blow out or replace. Clogged fuel line. Blow out or replace. Large Flame Leak in orifice assembly. Tighten orifice in holder and fuel flow) check.

  • Page 19: Assembly And Disassembly

    C. Assembly & Disassembly 2. Spark Plug Replacement 2.1 Depress button (31) and remove com- GENERAL NOTES bustor assembly (30) 1. Grease all “O” rings to facilitate assem- bly. 2. Fitting (23) is glued permanently into the valve body (22). 1.
  • Page 20 3.2 Undo contact screw (25) which retains 2.3 Unscrew spark plug. Note: spark plug the cable (17,18) and the contact spring gap should be set to 3-5mm. (26) 3. Igniter Replacement 3.3 Snap off the clamp (34) with a screw driver.
  • Page 21 3.4 Pull out cable (9) 3.6 Trigger/assembly (13) can now be lifted out. 4. Orifice Replacement IMPORTANT NOTE: The orifice (14) consists of 6 slender, thin walled tubes which can easily be bent or damaged if dropped or mishandled. Once bent, the performance of the gun can be seriously impaired.
  • Page 22 4.1 Remove the right housing (7) as shown in operation 3.1 4.3 Unscrew the orifice 4.2 Undo the 3 mounting screws holding the pump (14) and remove the pump first by sliding it away from the orifice and then lift- ing it out.
  • Page 23 UL Gun Only fully until the mounting struts of both halves are parallel. 5. Safety Cage Mounting 5.1 Push both curved tubular joines (15) onto one half of the cage (16). 5.3 Attach the cage assembly to the com- bustor with the 4 mounting screws (18). 5.2 Insert the second half of the cage (17) into the tubular joints and twist it together...

  • Page 24: Technical Specifications

    D. Technical Specifications OUTPUT CHARACTERISTICS DISTANCE/FT. TEMPERATURE/°F VELOCITY - FT./MIN. 1120 2100 1200 Heat Capacity 172,500 Btu./Hr. Propane Consumption 8.0 Lbs./Hr. Operating Pressure 22.5 PSIG Weight 2 Lbs. 20 Oz. Air Consumption 30 CFM Emission .015 CO/CO 2...
  • Page 26 Filter Holder Contact Screw O ring Contact Spring Filter (disc) Socket Filter Spring Spark Plug Orifice Assy. Assy Screws 24-O ring Combustor Retainer Button Inlet Flameholder Fuel Line O ring Pump Body Strap Label, RH Button Spring Label, LH 36A. Hose Assy-US (Not shown) Name Plate, UL (Not shown) 36B.

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