Tools 24 - Chain Saw Ops. Flashcards
Body ALWAYS:
To left of chain line
No cutting above:
Chest height
Cut down =
Pull
Cut up =
Push
General Info.
- Avoid use of nose section for cutting
- Cut well back on straight section of bar
- Only 2 cycle engine oil mixed w/gas
Circle of danger radius
10’
Who is allowed inside circle of danger?
ONLY saw operator & control person
Where is officer positioned?
Officer positioned to permit VISUAL CTC W/CONTROL PERSON, IF POSS.
Where is Control M positioned?
Control M positioned to permit easy VISUAL CTC W/OPERATOR AND SAFE DISTANCE FROM SAW
What must be worn by M’s w/in circle of danger?
Hearing devices
Conflict because of both Operator AND Control inside circle??
Debris NOT removed until who says OK?
Saw Operator; NOT OFFICER!
Trees are _________ conductors of electricity?
GOOD
Most dangerous kick-back zone =
Upper 90 degree quadrant of nose of blade
Tree laying on ground cut to _____ width of log
3/4
Then remove saw. If poss, roll log over OR complete cuts where binding OR ctc w/ground less likely
Log resting on fulcrum point = ______ cut
RIP
Log resting on 2 fulcrum points = ______ cut
RIP OR 1/2 - 3/4 DOWNWARD
FINISH BY CUTTING UPWARD
Wood on ground OR Standing under Tension =
Cut compression side 1st
Thereafter, cross-cut from tension side
Limbing =
Removal of BRANCHES ~ EXTREME DANGER OF KICK BACK
- DO NOT STAND ON LOG WHILE LIMBING
Bucking =
Cut log into sections
Do not stand on log
If on slope, stand on UPHILL SIDE
Saw not to be operated from:
Ladder
Climb uphill = Guide bar to _________
Rear
Repairs =
Tech Svcs
Chain saw examined and tested _______.
Weekly
Incl. fuel & bar oil levels
Schedule established by Co. CMDR.
NEVER Operate w/o ________?
Chain AND Blade being oiled
Air filter
Exam’d / Cleaned after each cutting op.
Clean after each use
Choke “ON” b4 clean
Chain resharpen =
RT-2 to Tech Svcs
Replace chain/bar assy. =
Chain brake OFF b4 remove side cover
No adjustments to:
Carburetor OR auto. Chain oiler
While operating chain saw, Operator AND Control person shall wear the following approved NFPA equipment:
Helmet Eye & Ear protection Gloves Bunker boots Chaps
Chaps must be worn….??
Over EITHER LONG PANTS OR BUNKER PANTS
- Chaps NOT WORN OVER SHORTS!!
Whan MUST BE WORN to protect against flying debris, insect bites, poison ivy, etc…?
Bunker coat AND/OR Long sleeve shirt
Cutting trees blown ~ Uprooted
Cuts
“N.S.L.T.P.T.”
N on-supporting limbs
S upporting limbs beyond pressure pts.
L og cribbing under trunk
T runk from topside ~ work towards stump
P ressure Pts. ~ Overcut 1st b4 Undercut to avoid binding
T runk cuts ~ work towards stump
