Portable Power Saws (Tools 9) Flashcards
What type of Engine is in the Portable power saw?
A high speed, two cycle engine powers the saw.
What blade is used to cut roofs?
Carbide Tip.
What kind of blade is used to cut metal?
Aluminum oxide.
What kind of blade is used to cut cement or masonry?
Silicon Carbide
“Slices Cement”
What can you cut with a diamond blade?
You can cut both Cement/Masonry and Metal/Steel. Diamond Blades can also cut through bullet proof glass.
How many minutes of continuous operation is one full tank of fuel sufficient for? (Partner Saw)
20-30 mins
What is the recommended fuel mixture for a partner saw?
One and a half small containers (4.8 oz) of Partner Engine Oil to be mixed with one gallon of fresh gasoline.
True or False?
The fuel tank of a partner saw contains a special wick that allows for operation regardless of position.
True
When should you replace a Carbide Tip blade?
- 8 or more tips missing or broken
- worn down to the circumference of the blade
When should you replace a Silicon Carbide or Aluminum Oxide Blade?
- cracked or badly nicked
- center hole wears out of round
- blade is worn down to 8” diameter or less
Can you run the Engine of a Partner Saw without an air filter?
No.
What should the guide member and operating member be wearing when operating the partner saw?
- Full fire clothing
- gloves
- googles
Where should they goggles that are to be used with the Partner Saw be located?
Attached to the Saw carrying handle.
When a guide man is communicating physically with the operator during a partner saw operation what do: 1 slap, 2 slaps, and three slaps mean?
1 slap: Stop
2 slaps: Cut
3 Slaps: Shut saw down
During roof or floor cutting operations, the circle of danger is how big?
20 feet from the point where the blade of the saw is in operation
What should you do with removed pieces of roof section?
Leave near roof opening to warn other members.
How big should the hole in a roof be in buildings other than taxpayers?
3x6
True or False?
CAUTION should be exercised when choosing returns to be opened. Returns remote from fire should be avoided as this action could unnecessarily spread the cockloft fire.
True.
True or False?
Fresh smoke coming from the area of the saw blade and a slowing of the blade usually indicates too deep a cut through heavy material.
True.
True or False?
If excessive resistance to the saw is encountered, the cut may be on the beam. Sparks are a good indication that cut is on beam.
True.
True or False?
Preferably, saws shall be started in a smoke free area close to the point of operation.
True.
One Diamond blade should outlast how many abrasive blades?
150
The Diamond Blade Generates how much less sparks than abrasive blades?
90%
What is the Diamond percentage of a Diamond Blade?
85 % on the cutting edge
How can you rectify a Diamond Blade becoming glazed over?
Use it to cut an abrasive material such as concrete. This will expose more diamonds on the blades edge.
What blade should be painted yellow?
The silicone carbide blade.
