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28 Cards in this Set
- Front
- Back
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Four Stroke IC Engine |
Piston moves up and down TWICE to complete a cycle. Process takes TWO revolutions of the crankshaft
4 Strokes: Intake (piston moves DOWN) Compression (piston moves UP) Power (piston moves DOWN) Exhaust (piston moves UP) |
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4 Stroke - Intake #1 |
Intake Stroke
Piston moves down and the intake valve opens. Air/Fuel mixture is drawn into the cylinder by the vacuum generated by the downward stroke. |
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4 Stroke Intake #2 |
Compression Stroke
Piston moves up in the cylinder. Both intake and exhaust valves are closed. Compresses the air/fuel mixture which generates heat. When piston near top of upward travel, spark plug fires igniting the air/fuel mixture. |
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4 Stroke Intake #3 |
Power Stroke
Mixture burns, creating gases which expand quickly pushing piston down. This stroke produces the engines power. |
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4 Stroke Intake #4 |
Exhaust Stroke
Exhaust valves open and the waste gases (products of combustion) are pushed out of the cylinder by the rising piston. The engine then starts another complete cycle. |
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Two Stroke IC Engine |
The piston moves up and down ONCE to complete a cycle. This process takes ONE revolution of the crankshaft.
2 Strokes are: Intake/Exhaust & Compression (piston moves UP) Intake/Exhaust & Power (piston moves DOWN)
Functions the same as four stroke engines but in a combined manner
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2 Stroke #1 |
Intake/Exhaust & Compression
Downward movement of the piston, waste gases are exhausted and an air/fuel mixture is drawn into the cylinder by the vacuum generated. |
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2 Stroke #2 |
Upward movement of the piston the air/fuel mixture is compressed generating heat. When piston reaches the top of its upward travel the spark plug fires igniting the mixture. |
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Power Saw Uses and Locations |
Ventilation Forcible Entry Extrication Building Collapse
Ladder Trucks/Tenders Heavy Rescue 22 RRTs 19/20 Engines |
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STIHL TS-360 Circular Saw Specs. |
3.68 cubic inch 2 stroke motor Fuel 50-1 gas to 2 cycle oil mixture Fuel capacity - 1.9 pints Max RPM - 5000 Cutting depth - 3.9" (new blade) Weight = 22.9lbs without blade V-Belt tension = no less than 3/16 - no more than 3/8 inch |
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STIHL TS 400 Circular Saw Specs. |
Replacing 360 Use 14" or 12" blade 3.9 cubic inch 2 stroke motor Fuel 50-1 gas to 2 cycle oil mixture Fuel capacity - 1.39 pints mix Max RPM - 5350 Cutting depth - 4.9" with 14" blade Weight = 20.5 lbs without blade
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STIHL TS 460 |
Replacing 360 Use 14" or 12" blade 4.42 cubic inch 2 stroke motor Fuel 50-1 gas to 2 cycle oil mixture Fuel capacity - 2.1 pints Max RPM - 5350 Automatic belt tensioning Cutting depth - 4.9" with 14" blade Weight = 23.5 lbs without blade |
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STIHL TS 420 |
Use 14" or 12" blade 4.07 cubic inch 2 stroke motor Fuel 50-1 gas to 2 cycle oil mixture Fuel capacity - 0.71 L Max RPM - 5350 Automatic belt tensioning Cutting depth - 4.9" with 14" blade Weight = 22.3 lbs without blade |
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Rescue Blades |
Cuts - concrete, brick, masonry block, wood, steel, iron, glass, plastic Steel core with industrial cutting diamonds vacuum-brazed to the edge Max RPM - 5400 Weight = 6 lbs Can be water cooled Located on all Engines, Ladders and Squads Replace when no longer efficient |
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Steel Carbide Tipped Blades |
Cuts - wood and non ferrous metals (copper, aluminum) Tips can break and come off Replace when 1/3 missing Run at full throttle prior to bringing blade into contact with surface Do not side load |
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Composite Blades |
Fiberglass and epoxy impregnated with an abrasive material Cuts - steel, concrete and masonry 12" new and replace when 8" Must read label to identify blade type Turning at idle speed when first contacting work surface Blotters absorb or stop transfer vibration from saw to blade Store away from petroleum Do not side load |
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STIHL 029 |
3.3 cubic inch 2 stroke motor Fuel 50-1 gas to 2 cycle oil mixture Fuel capacity = 1.2 pints Bar oil capacity = 0.66 pints Max RPM - 12,500, idle RPM 2,800 20" bar, 70 links, 35 carbide tipped teeth, single rake chain Weight = 13 lbs without bar and chain Replace chain when 1/3 teeth missing = 12 teeth |
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STIHL MS310 |
3.6 cubic inch 2 stroke motor Fuel 50-1 gas to 2 cycle oil mixture Fuel capacity = 1.2 pints 20" bar, 70 links, 35 carbide tipped teeth, single rake chain Weight = 13 lbs without bar and chain Replace chain when 1/3 teeth missing = 12 teeth |
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STIHL MS460 |
4.67 cubic inch 2 stroke motor Fuel 50-1 gas to 2 cycle oil mixture Fuel capacity = 1.69 pints Weight = 15.4 lbs without bar and chain |
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STIHL MS660 |
5.6 cubic inch, 7hp 2 stroke engine Fuel 50-1 gas to 2 cycle oil mixture Fuel capacity = 1.74 pints 36" bar, 96 links, 48 carbide tipped teeth Weight = 16.5 lbs without bar and chain Found on ladder 1 Replace when 1/3 missing = 16 teeth |
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Operating Chain Saw |
Cuts - wood roof sheathing, asphalt shingles and sheets, fiberboard and foam board under layment, thin non-ferrous metals
Will not cut - masonry tiles, concrete, heavy metal sheeting, metal bars/pipes,supports, rock or clay roof coverings
Cut at 45 degree angle Keep roller tip through material Brace feet wide apart on parallel line to the cut Bring saw to full throttle |
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Generator Types |
Portable are four cycle gas powered engines
Rig mounted are diesel |
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Homelite 2500 |
5 HP Briggs and Stratton 4 cycle engine 2300 watt output 120 volt 19.2 amps Run time = 1.8 hours on 1/2 gallon of fuel |
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Honda Multiquip |
4 HP Honda 4 Cycle engine 2300 watt output 120 volt 19.2 amps Run time = 5hours on 3 gallons of fuel |
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Generator Equipment |
Electric cord reels Junction boxes Pigtails 18"-24", household adapters, 3 prong 1/4 turn twistlocks Lights, smoke ejectors, water vacuum etc. |
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Smoke Ejector Uses and Locations |
Used to reduce heat & smoke in a structure Push, pull, pressurize or venturi air Ventilate confined spaces or disperse vapors
Located on all Engines, Ladders and LTs |
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Electric Smoke Ejectors |
750 to 1000 watts 16" blades move 5200 CFM 20" blades move 9500 CFM
Advantages Lighter No emissions Simple to operate Works in oxygen deficient atmosphere
Model # P 164 SE P= Portable 16 = blade length 4 = # of blades S = shape square E = explosion proof motor |
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Gas Powered Smoke Ejectors |
4 to 5.5 HP Honda, 4 stroke engine Uses unleaded gas 2 to 7 blades - made of Laminated Hardrock Maple 10,000 - 20,000 CFM Fan speed adjusted with throttle Should no be used inside structure, may be needed |
