Unit 4 Helitorch, Batchmixer and Modular Mix Transfer Components

Objectives n Know basic parts & mechanics of a Helitorch n Become familiar with the mixing systems

Basic function of mixing system is to combine raw fuel with a gelling agent to create a thickened mixture, then transfer it to the helitorch

The purpose of a Helitorch is to dispense ignited gelled fuel via a helicopter.

Helitorch Primary Parts

n Frame n Fuel tank with sight glasses n Ignition system n Pump and positive shut-off nozzle n Clay&Bailey relief valve n Cam-lock and dry break fittings n Single point suspension with adjustable attachment point and electrical cable

Batchmixer

Batchmixer n Designed to mix gelling agents and fuel to a thick, consistent mix n Tank designed to meet U.S. D.O.T. regulations n Capable of mixing large quantities of fuel & pumping to Helitorch drums

Batchmix Components

Batchmixer Components n Motor n Pump n Pressure gauge n Plumbing n 3-way valve n MC 306 or DOT 406 tank n Fuel fill port n Mix/re-circulation tank n Discharge hose with dry break valves n Suction dry break fitting port n Suction hose with dry break valves n Emergency Shut Off handle with minimum 20 foot lanyard

Modular Mix Transfer System

Modular Mix Transfer Systems n Same purpose as a batchmixer n Not hard plumbed to a mix tank n Pumps gelled fuels from one drum to another n Less costly to manufacture n D.O.T. regulated for public highway transportation

Transfer System Components

Modular Mix Transfer System Components n Motor n Pump n Pressure gauge n Approved drums n Fuel fill port n Clay/Bailey relief valve n Powder dispenser n Sight glasses n Discharge hose with dry break valves n Suction/re- circulation dry break fittings n Suction hose with dry break valves

Helitorch Support Kit Contents - PPE -

PPE n Nitrile, leather and cotton gloves n Cotton or non-static coveralls n OSHA/NIOSH approved dust masks n Chemical splash goggles n Ear plugs

Helitorch Support Kit Contents (cont’) -Mixing Equipment-

Mixing Equipment n Spring scale n Aluminum container for powder measuring n Non-ferrous mixing paddle n Commercial gelling agent n Fuel thermometer n Approved powder dispenser

Static Bonding Equipment

Static Bonding n Bonding cables w/clamps and clips n Approved transparent vapor hose n Gasoline approved transfer hose n Both the vapor and fuel transfer hose should have wire helix and be continuity tested prior to use

- Communications -

Communications n Hand held radio with chest harness n Headset with hardhat or SPH 4/5 flight helmet with push to talk capability n Extra clam shells with extra batteries n Discrete radio frequency

Helitorch/Mixing System Misc. supplies and parts n Extra drums n 24 volt system for running tests n Extra parts including: spark plug, drive belts, solenoid valve, single pole guarded electrical switch, propane regulator, dry break (male and female), grease w/gun n Propane bottles

MISC. Supplies cont. n O-ring n Grease Gun w/grease n 5 gal. Of diesel or jet A n Cotton rags, hand cleaner, steel wool, duct tape, wire brush, wire ties, garbage bags, etc. n 5 gal. Cubie of water n Tools and 2 large non-ferrous pipe wrenches n Spare drum seal(s)

- Helibase Equipment -

Helibase Equipment n 40-B:C fire extinguishers n Pad maker w/nails n Wind indicator, wind meter and thermometer n Helibase, No Smoking and Flammable signs n Barrier flagging with stakes

Helibase Equipment cont. n First Responder Medical Kit w/burn blankets and eye wash n Crash Rescue Kit n Evacuation litter n 5-Gallon Class B foam n Fiber Tape