Tools 24 Chain Saw Flashcards
What clothing must the operator of a chain saw and the control person wear at op
Long sleeve work duty shirt or bunker coat Helmet Eye protection Ear protection Saw protected gloves Bunker boots Saw protected chaps
You should never use a chain saw to vent or overhaul at a structural fires?
False may be used a pier fires
Starting chain saw procedure
- Hold saw down on clear surface
- Keep body to left of the chain .. Never straddle the saw or lean across
- Hold the front handlebar on top behind guard with left hand
- Pull starter with straight up with right hand
Notes always hold with both hands when running
Stand to left of chain saw never use cross handed grip
Proper grip.. Fingers encircled the handle with thumb wrapped around the opposite side from fingers
May you cut above chest high
No never
When cutting on slope chain saw operator should stand where ?
Always stand on the uphill side of the tree/log when cutting
What is a kerf
The space left behind the cutting blade as it cuts
When does pull- in occur when using chain saw
When chain on bottom of bar suddenly stops
When cutting downward
Notes occurs often when bumper spike is not held securely against tree and when the chain not rotating at full speed before it contacts wood
When does pushback occur
When cutting on the underside of log or limp with top of saw blade
The circle of danger when using the chain saw is
10 foot radius
Only saw operator and control man allowed in circle of danger
Officer should be outside 10 foot radius circle of danger if possible in a position to permit visual contact with the control person
Hands signals must be used between operator control member and officer
Saw refueling area outside circle of danger
What is the most dangerous kick back zone on chain saw
Upper 90 percent quadrant
Never make plunge cuts with tip of blade
When cutting a log keep chain parallel to the ground and cut straight through until you reach
Cut to the point 3/4 the width of log then remind the saw
Wood on the ground or standing timber which is under tension has first to be cut on ________ side . thereafter the cross gut must be finished on _______side.
Compression first
Tension next
Saws are to be examined and tested
Weekly as established by company commander
When transporting refueling or performing maintenance the saw must be in
OFF Position
If saw continues to spin at idle them
Place saw Oos