TFD 17-1 Power Tools
at what diameter should a 12 inch blade be replaced?
8 inches
at what diameter should a 14 inch blade be replaced?
9 inches
How many CFM does an electric smoke ejector move with a 20 inch blade?
9500 CFM
2 stroke engines are found on both:
Circular and chain saws.
4 Stroke Engines are primarily used on:
Generators and gas powered fans
What are the three kinds of circular saw blades?
Steel carbide-tipped blades, composite blades, and rescue blades.
What is a rescue blade made of?
Steel core with industrial diamonds vacuum brazed to the edge.
Uses for Power Saws:
Ventilation, forcible entry, extrication, building collapse, and wildland.
What kind of fuel does the Stihl TS-360 use?
a 50-to-1 gas-to-2 stroke oil mixture
What do blotters do?
absorb or stop the transfer of vibration from the saw to the blade
should rescue blades operate at high or low RPM?
high RPM
when cutting with a composite blade, should you begin the cut at full speed or idle speed?
idle speed
when else should composite blades be replaced?
if saturated with water or exposed to petroleum products
The four strokes on a four cycle engine are:
intake, compression, power, and exhaust.
How would you de-glaze the edge of a rescue blade?
keep the blade at a high RPM and stick into a asphalt, concrete, or brick to de-glaze
what are the blades on gas-powered smoke ejectors made of?
laminated hard-rock maple
Advantages of electric smoke ejectors?
lighter, no emissions, simple to operate, will work in an oxygen deficient environment.
What will our chain saws not cut?
masonry tiles, concrete, heavy metal sheeting, metal bars/pipes, rock or clay roofing
When should you cut above shoulder height?
never
what saws do Engines carry?
one circular saw
When should the steel-carbide tipped chain be replaced?
when about 1/3 of the teeth are missing
When is it time to replace a steel-carbide tipped blade?
when approximately 1/3 of the teeth are missing
What does the spindle lock do?
when engaged, it stops the blade from moving so it can be changed out.
how can rescue blades be cooled?
with water
What can Steel-carbide tipped circular blades cut?
wood and non-ferrous metals
What will our chainsaw cut?
wood roof sheathing, asphalt shingles and sheets, fiberboard and foam board, and thin non-ferrous metals.
how do you sharpen the steel-carbide tips?
you don't; they just break off
how many links on the chain?
70-72
Watts of electric smoke ejectors?
750-1000 watts
how much does a rescue blade weigh?
6 pounds
Fuel capacity of Stihl 029?
1.2 pints
What is the fuel capacity of the Stihl TS-360?
1.2 pints
what is the fuel capacity of the Stihl MS-460?
1.69 pints
What is the CFM range of gas-powered smoke ejectors?
10,000 - 20,000 CFM
What is the max RPM of the Stihl 029?
12,500 RPM
How much does the Stihl 029 weigh?
13 pounds without the bar and chain
What is the max RPM of the Stihl MS-460/
13,500 RPM
What size blades can the Stihl TS-460 use?
14 inch and 12 inch
What is the weight of the Stihl MS-460?
15.4 pounds without the bar and chain
how many blades do the gas-powered smoke ejectors have?
2 - 7
What saws do Ladders carry?
2 chain saws and circular saw
What is the idle RPM of the Stihl MS-460?
2,500 RPM
What is the idle RPM of the Stihl 029?
2,800 RPM
What is the fuel capacity of the Stihl TS-460?
2.1 pints
how big is the Stihl 029 bar?
20 inches
What is the weight of the Stihl TS-360 without a blade?
22.9 pounds
what is the weight of the Stihl TS-460 without a blade?
23.5 pounds
What is the displacement of the Stihl 029?
3.3 cubic inches
What size engine is the Stihl TS-360?
3.68 cubic inch
What is the max cutting depth of the Stihl TS-360?
3.9 inches with a new blade
What is the v-belt tension range on the Stihl TS-360?
3/16-3/8 inch
how many teeth on the chain?
35-36
Engine specs for the Honda Multiquip?
4 horsepower, 2300 watt capacity, 120 volt, 19.2 amps
What kind of engine are the portable generators?
4-stroke
What size engine is the Stihl TS-460?
4.42 cubic inch
What is the displacement of the Stihl MS-460?
4.67 cubic inches
What is the max cutting depth of the Stihl TS-460?
4.9 inches with a new blade
What angle should you operate the chain saw at?
45 degree angle
Engine specs on the Honda Multiquip 2500?
5.5 Horsepower, 2500 watt capacity, 120 volt, 20.8 amps
What is the max RPM of the Stihl TS-360?
5000 RPM
How many CFM does an electric smoke ejector move with a 16 inch blade?
5200 CFM
What is the max RPM of the Stihl TS-460?
5350 RPM
What is the max operating speed of a rescue blade?
5400 RPM
how does the centrifugal clutch work?
At idle speed the clutch shoe is held from the sprocket drum by the spring tension. As the shaft turns faster the shoes overcome the spring tension by centrifugal force. The shoes move outward and contact the sprocket drum which causes the drum to turn at the same speed.
For how long should you rev up the chain saw with the chain brake engaged?
Do not open the throttle with the chain brake engaged. This will damage the chain drive.
How do you tension the belt on the Stihl TS-460?
It uses an automatic belt tensioner
What does the model number P164SE stand for?
P = portable 16 = blade length 4 = number of blades S = square shape E = explosion proof motor
how can cutting speed be increased with a rescue blade?
by applying pressure
What are the basic components of a centrifugal clutch?
clutch shoes and sprocket drum
What can rescue blades cut?
concrete, brick, masonry block, wood, steel, iron, glass, plastic
what are 2 examples of non-ferrous metals?
copper and aluminum
What kind of fuel do rig mounted generators use?
diesel
What can composite blades cut?
different composite blades cut different materials; such as steel, concrete, and masonry.
Name some equipment that can be used with the generators:
electric cord reels, junction boxes, pigtails, household adapters, 3-prong 1/4 turn twist-locks, lights, smoke ejectors, water vacuum.
What are composite blades made of?
fiberglass and epoxy impregnated with an abrasive material
when cutting with a steel-carbide tipped blade, should the cut be started at idle, or full speed?
full speed
How can you identify what kind of composite blade it is?
read the label
Do we use a single or double-rake chain?
single rake chain