Saws Flashcards
(41 cards)
Types of blades on the Rotary Saw
Abrasive blade
Combi-Blade
Diamond Blade
Carbide Tooth Blade
Size of Blades on Rotary Saw
14 inch
Abrasive Blades are used on what kind of surfaces
steel, steel alloy, and other hard metals
Minimum size of blades on rotary saw to remain in service
12 inches
Combi Blades uses
bare metal, concrete, reinforced concrete, masonry, or Robertson decking
Are combi Blades bi directional?
yes
Cut depth of Combi blades
4 3/4
When shall combi blades be replaced
Any one segment is fractured, broken or missing.
● Bald spots along any of the segments occur.
● Matrix bond is equal to the thickness of the blade body; a step or lip no longer
exists
Carbide tip blades are used for cutting what
roofing material, wood, and lexan
The purpose of the decompression valve is to ___
reduces the pressure in the cylinder to assist with starting the saw
You should press the air purge diaphragm how any times prior to starting the chain saw
6
Flooding procedure for rotary saw
Ensure the Choke is pushed in and the half throttle is engaged. This allows the maximum
amount of air to flow through the carburetor, combustion chamber and out the exhaust.
2. Pull starting cord and cycle the saw quickly about 4-5 times. As the air to fuel mixture in
the combustion chamber lowers it will start.
The rotary saw shall not be run for more than __ seconds without a load
6 seconds
Checks are documented on what form
F-973M
Forces that cause resistance to the intended movement when cutting is called ____
the gyroscopic effect
Which color fuel can supplies 50:1 premix?
Yellow
Which color can supplies normal gasoline
Red
A 2 stroke engine takes what kind of fuel?
50:1 Premix (Yellow Can)
A 4 stroke engine takes what kind of fuel
Normal Gasoline (Red Can)
What are the 2 Different chain brakes on the chain saw
Manual and automatic
How can you engage the chain break on the chain saw
Press your left wrist forward on the hand guard to engage it
START position for a cold rotary saw
Decompression valve IN, Choke OUT, STOP switch pulled left (run position), pull chord until you hear it want to turn over, press Choke IN, continue pulling until it starts, disengage fast idle with throttle interlock
START position for warm rotary saw
Decompression valve IN, Choke IN, STOP switch pulled left (run position), pull chord
The chain brake on the chainsaw engages in how many tenths of a second?
1/10th