Hewitt 1212312N Pressure Activated Aviation Nozzles Instruction Manual

June 9, 2024
Hewitt

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Hewitt 1212312N Pressure Activated Aviation Nozzles

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Product Information

The Aviation S Pressure Activated Aviation Nozzles (models ^1212312N, ^12123171N, and ^15472268N) are designed for use at aviation fuel dispensing facilities only. These nozzles have a minimum automatic shut-off flow rate of 5 gpm / 18.9 Lpm and are made in the USA. The warranty provisions apply only to original purchasers who use the equipment for commercial or industrial purposes.

Installation Instructions

  1. Attach the grounding cable alligator clip to the grounding port on the aircraft.
  2. Insert the spout into the fill pipe opening.
  3. Tighten the nozzle onto the threads of the hose section, using a wrench on the hose nut only. Tighten approximately 1 to 2 turns past hand tight – do not overtighten.
  4. Pressurize the system and visually inspect for leaks.
  5. Test the nozzle for proper automatic shut off – minimum of 5 gpm / 18.9 Lpm.
  6. Perform pressure activation test (no pressure / no flow test).
  7. Turn off dispenser and relieve line pressure.
  8. Use pipe thread sealant (not Teflon® tape) approved for gasoline on the male threads of hose section.
  9. Tighten approximately 1 to 2 turns past hand tight – do not overtighten.
  10. Pressurize system and visually inspect for leaks.
  11. Test nozzle for proper automatic shut off – minimum of 5 gpm / 18.9 Lpm.
  12. Perform pressure activation test (no pressure / no flow test).

Note: Do not overtighten the nozzle onto the hose section and use a wrench on the hose nut only.

Operation Instructions

  1. Activate the fuel dispenser.
  2. Attach the grounding cable alligator clip to the grounding port on the aircraft.
  3. Insert the spout into the fill pipe opening.
  4. Raise the lever and begin fueling.
  5. The nozzle will shut off automatically when the tank is full.
  6. Wait 15 seconds to allow any fuel remaining in the spout to drain.
  7. Remove the nozzle from the fill pipe by raising the hose end of the nozzle.
  8. Remove the grounding cable alligator clip from the aircraft grounding port.
  9. Return nozzle to nozzle boot.

Note: Do not top off the tank as it can lead to spills and splashes. Always follow the installation, usage instructions, and warnings provided in the user manual to avoid injury, damage, or hazardous spills.

TESTING / MAINTENANCE / INSPECTION

Daily

  • Check for leaks / stains.
  • Check for loose spouts.
  • Check for damage.
  • Check for bent lever.

Monthly

  • Check nozzle automatic shut off – minimum of 5 gpm / 18.9 Lpm.
  • Check “remove after” date.
  • Clean fuel strainer
  • Check no pressure / no flow.

Annually

  • Check for electrical conductivity.
  • Lubricate main valve stem.
  • All maintenance and inspection activities must be logged using the serial number of the individual product.
  • Apply city, state, or federal testing regulations as appropriate.
  • ANY TEST / INSPECTION FAILURE REQUIRES IMMEDIATE EQUIPMENT REPLACEMENT OR REMOVAL FROM SERVICE.

WARNING: ALWAYS ADHERE TO INSTALLATION / USAGE INSTRUCTIONS AND WARNINGS.

Improper use may result in injury, damage, or hazardous spill.

GENERAL WARNINGS / INSTRUCTIONS PERTAINING TO A RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS:

  • Use of equipment is at the individual’s own risk.

  • Always abide by and adhere to city, state, and federal regulations regarding use and installation of dispensing equipment.

  • Always follow the product manufacturer’s installation and maintenance instructions.

  • Always turn off all power to dispenser during maintenance and inspection activities.

  • Always relieve pressure from system prior to performing maintenance activities.

  • Always check continuity after installation using a megohmeter (Refer to PEI RP 400 for details).

  • Always replace or remove from service damaged or leaking dispensing equipment immediately.

  • Always report leaks/spills / accidents to appropriate authorities.

  • Always wear appropriate safety equipment during maintenance activities.

  • Always have appropriate fire extinguishing equipment within 5 ft / 1.5 m of dispensers.

  • Never use thread sealant (Teflon® tape, anti-seize or any other kind of sealant).

  • Always discharge static electricity before using or servicing equipment by touching a metal part of the dispenser before and after fueling aircraft.

  • Never smoke within 20 ft / 6.1 m of dispensers.

  • Never keep in service past recommended life.

  • Never leave the nozzle unattended while dispensing fuel.

  • Never use sparking or flaming devices within 20 ft / 6.1 m of dispensers.

  • Never use cell phones within 20 ft / 6.1 m of dispensers.

CAUTION: DO NOT TOP OFF!

  • Topping off can lead to spills and splashes
  • Important safety instructions – save these instructions in a readily accessible location

WARRANTY

  • VAPOR PRODUCTS – Husky Corporation will, at its option, repair, replace, or credit the purchase price of any Husky® manufactured product which proves upon examination by Husky, to be defective in material and/or workmanship for a period of one (1) year of installation or fifteen (15) months from the manufacture date of shipment by Husky, whichever occurs first. The warranty period on repaired or replacement vapor recovery products is only for the remainder of the warranty period of the defective product.
  • CONVENTIONAL PRODUCTS – Husky Corporation will, at its option, repair, replace, or credit the purchase price of any Husky manufactured product which proves upon examination by Husky, to be defective in material and/or workmanship for a period of one (1) year from the manufacture date of shipment by Husky.
  • Buyer must return the products to Husky, transportation charges prepaid. This Warranty excludes the replaceable bellows, bellows spring assembly, spout assembly and scuff guard, unless (i) damage is obvious when the product is removed from shipping carton and (ii) the defective product is returned to Husky prior to use. This warranty does not apply to equipment or parts which have been installed improperly, damaged by misuse, improper operation or maintenance, or which are altered or repaired in any way.
  • The warranty provisions contained herein apply only to original purchasers who use the equipment for commercial or industrial purposes. There are no other warranties of merchantability, fitness for a particular purpose, or otherwise, and any other such warranties are hereby specifically disclaimed.
  • Husky assumes no liability for labor charges or other costs incurred by Buyer incidental to the service, adjustment, repair, return, removal or replacement of products. Husky assumes no liability for any incidental, consequential, or other damages under any warranty, express or implied, and all such liability is hereby expressly excluded.
  • Husky reserves the right to change or improve the design of any Husky fuel dispensing equipment without assuming any obligations to modify any fuel dispensing equipment previously manufactured.

PRESSURE ACTIVATION GUIDE

  1. Verify dispenser is turned off.
  2. Place nozzle spout into the test can.
  3. Pull-up lever – a small amount of fuel may flow until line pressure is relieved.
  4. Turn on the dispenser – the nozzle should not dispense fuel.
  5. Release lever.
  6. Pull up the lever and latch clip – the nozzle should dispense fuel
  7. Turn off the dispenser – the nozzle should stop dispensing fuel.
  8. Turn the dispenser on – the nozzle should not dispense fuel.

TROUBLESHOOTING GUIDE

The nozzle keeps shutting off or won’t dispense.

  1. Make sure the dispenser is on and activated.
  2. Clean spout tip
  3. Clean or replace the dispenser
  4. Clean or replace fuel
  5. Replace spout
  6. Check dispenser pressure – 19 psi / 1.3 bar is required to activate

The nozzle won’t shut off

  1. Check flow rate – minimum of 5 gpm / 18.9 Lpm required.
  2. Remove the nozzle and drain hose.

Nozzle leaks

  1. Check for the loose spout.
  2. Check hose
  3. Check for cracks in the nozzle and hose

Low flow rate

  1. Verify dispenser is not in slow flow rate mode.
  2. Check for system leaks.

FUEL STRAINER CLEANING INSTRUCTIONS

  1. Remove nozzle from hose and drain.
  2. Remove fuel strainer assembly from nozzle.
  3. Flush dirt and debris from strainer.
  4. Install fuel strainer assembly onto nozzle. Never use thread sealant (Teflon® tape, antiseize or any other kind of sealant).
  5. Tighten firmly, approximately 15-20 lbf•ft / 20.3-27.1 N•m, but do not overtighten.
  6. Follow installation instructions to install nozzle onto dispenser.

GENERAL TECHNICAL DATA

  • Fuel Type Test and warranty for aviation fuel
  • Flow Rate 50 gpm / 189.3 Lpm
  • Body Sand cast aluminum
  • Disc Fluorocarbon
  • Packing Double O-ring seal protected by fiber reinforced Teflon®
  • Lever One-piece contoured steel with hard plastic cover
  • Shipping Weights 4.5 lbs / 2 kg
  • Threads 1″/25.4 mm NPT
  • Spout 1-3/16 in / 30.2 mm O.D. without spout bushing
  • Case Quantity 15
  • Listing: ^ Not Listed

Husky Corporation

References

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