TRAINING BULLETIN #032 CHAIN SAW Flashcards by Zane Archer

The following safety equipment shall be used in conjunction with chain saw operations at all times:(4)

Gloves
Goggles
Helmet
Turnout coat or brush coat

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If an electrical hazard is suspected or exists What shall be used?

Gauntlet gloves

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The chain of the chain saw at idle speed will what?

Still continue to move

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The proper positioning of the chain saw and body could prevent injury from What three things

A broken chain

Flying debris

Or chainsaw kickback

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There are two ways that a chain brake is engaged:

Manual and automatic

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_____engagement most often occurs when the chain saw kicks back, causing the left hand to strike the hand guard.

Automatic

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the brake engages within?

1/10th of a second

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Some chain saws are equipped with an _____operated chain brake that engages whenever a violent movement of the chain saw occurs.

Inertia

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Never use the chain brake hand guard as a

Carrying handle

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CAUTION
DO NOT operate a chain saw at speeds above idle when ___ ____ _____ or engine damage may result.

The chain brake is engaged

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cutting is an operation involving a minimum of

Two members

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The primary responsibility of the safety person is to:

Alert the operator of changing or ____ _____
Prevent _____
Assist the operator who is ____ ____while involved in cutting operations.

Unsafe conditions

Injury

Backing up

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Since a running chain saw creates a serious communication problem, the safety member will have to use ______ or “____ ______” to communicate effectively.

Gestures or body language

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An effective way for the safety member to remain in contact with the operator is to use an _______ _____ on an axe scabbard belt, B/A frame/webbing, etc.

Underhanded grip

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NEVER refuel chain saws

Indoor or in quarters

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the chain saw can be used to “____ or ____” rafters or joists.

Feel or read

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The length of the chain saw from tip to handle is comparable to a _______ _____ of average length.

Pickheaded axe

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If you have determined that a defensive hole is necessary, remember to trade

space for time

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Starting the Saw

1.On/off switch iHold chain saw firmly on the ____, _____ or ______ with the chain clear of obstructions.

Roof, floor, or ground

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Starting the Saw

2.Pull starter cord ___ ____ to engage starter pawls. Crank engine _____ with short pulls. Do not pull starter cord using long strokes as damage to cord may result. Maintain _____ on cord as it rewinds. Do not let starter handle ___ _____ to chain saw.

Just enough

Smartly

Tension

Snap back

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Starting the Saw

3.If the engine fires but does not continue to run, push choke in ___ ___. When the engine runs, _______ choke, squeeze and release the ______ ______immediately. Do not operate chain saw with trigger latched in the starting position.

Half way

Disengage

Throttle trigger

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Starting the Saw

4.Warm the chain saw prior to cutting by bringing RPM’s up to ____ speed and then allowing them to drop off. Repeat this process _____times.

Peak

Several times

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Starting the Saw

5.Saws that have reached proper operating temperature and must: be restarted do not require ______. Latch the throttle trigger and restart saw.

Choking

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Starting the Saw

6.Pump _____ _____ several times to insure chain lubrication if the chain saw is so equipped.

Manual oiler

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CAUTION Do not operate chain saws at continuous full RPM without a "____" on the chain.

Load

CAUTION Do not attempt to start chain saw with ______ _____ engaged.

Chain brake engaged

If the chain saw will not start, check the following: 1. ____/____ switch and wiring - off/disconnected 2. _____ - proper position 3. _____ _____

On/off Choke Fuel level

If the chain saw will not start, check the following: 4. Flooded cylinder - use following procedure: a. Place on/off switch in "___" position b. ____ ___ ____ - ensure that the choke is not engaged c. Pull starter cord __ to __ times d. Turn switch "__". Use normal starting procedure.

Off Push choke in 4 to 5 On

If the chain saw will not start, check the following: 5. Spark plug _______ and _____ ____.

Condition and specified gap

An advantage of the chain saw is the operator's ability to "___" the work.

Feel

When used to locate structural members, the chain saw should be held in an _____position, ________ to the roof's surface.

Upright position Perpendicular

Once the structural members (rafters, joists, etc.) have been located, the chain saw may be lowered to approximately ___ to the cutting surface for continued cutting.

450(meant to be 45 degrees?)

When a structural member is encountered, the operator should lift the chain saw _____ out of the work and continue over the top of the structural member before returning to the same depth of cut.

Nearly out

Safe depth of cut will depend on four factors: 1. Type of ________ 2. Thickness of _____ ________ 3. Thickness of _______ 4. Intended ________

Construction Roof covering Decking Operations

During lengthy operations it may become necessary to ______ the chain saw, add chain ______ _____, and adjust chain _______.

Refuel Lubrication oil Tension

Saws with automatic oilers should be adjusted for

Maximum oiling

Manual oilers should be depressed a minimum of once every __ seconds under light conditions. When used under extreme conditions (several layers of roofing material), manual oilers should be depressed _____ ______.

10 seconds More often

Clean all debris away from What caps before opening

Fuel and oil caps

After use Wipe off debris. Pay particular attention to the ___ _____ _____, ___ ____, and ___ ____.

Air cleaner cover, Fuel cap Oil cap

After use 2. Check _____ of chain. ____ chain if necessary.

Condition Replace

After use CAUTION Do not use ______ as a cleaning solvent.

Gasoline

After use 4. Remove the air filter. Gently strike the filter on the __ ___ ___ _____ to dislodge foreign objects. Inspect for ____ and general condition. If torn or excessively dirty replace as soon as a _____ ______ is available. Reinstall filter.

Palm of your hand Tears Spare filter

After use 5. When the chain saw has _____, add the specified fuel to capacity.

Cooled

Carbide-tipped chains used on this Department are resistive to ______ but subject to ______.

Dulling Chipping

If carbide tips become damaged, it will be necessary to replace the chain when: 1. Missing/damaged tips on __ or more cutters in a row. 2. Missing /damaged tips on __ or more cutters at random. 3. Cracked/broken ____ ____ 4. ____ chain

3 6 Tie straps Dull chain

Dull chains should be replaced when a radius on the cutting edge is

visible to the naked eye.

Tension must be checked

Before, during, and after use

During extended cutting operations, check chain tension every

Few minutes

Proper chain tension adjustments are made in the following manner: 1. Loosen _____ _____ cover nuts. 2. Grasp tip of guide bar and raise to remove slack between ____ ____ and ____ _____.

Drive sprocket Guide bar and mounting studs

Proper chain tension adjustments are made in the following manner: 3. Adjust tension screw, located ______ of the guide bar on the ____ of the chain saw. Turn _______ to tighten.

Inboard Front Clockwise

NOTE Avoid injury by using ______ or _____ ____ to protect hand when making adjustments or pulling chain through its travel.

Gloves or wiping rags

A. Daily Checks 1. Check _____ _____. Add mixed fuel if necessary. 2. Check _____ ____ level. Add if necessary. 3. Check chain ______, ______, and proper _______ of travel.

Fuel level Lubricating oil level Condition, tension Direction

A. Daily Checks 4. Check controls for proper _____ _____. 5. Check _____ ____ and _____ for condition.

Starting position Carrying strap and hooks

A. Daily Checks 6. Check _____ ____ for proper location and condition. 7. Make a visual check of tile chain saw for loose ______ and/or _____.

Gauntlet gloves Fasteners and/or covers

Weekly Checks 1 2 3 4

1.Perform daily checks 2. Start chain saw 3. Depress oilier if equipped several times 4. Run up rpm’s. Run until warm

Do not run chain saw at full RPM without load for more than a ___ ____ or engine damage may result,.

Few seconds

Weekly Checks 5 6 7 8 9 10

5.Check to see if chain is oiling properly 6. Place on firm surface engage chain brake 7.shut off chain saw an allow to cool 8. Check chain tension readjust if necessary 9. Inspect starter cord for fraying and contamination 10. Top off fuel and chain lubricating oil levels if necessary

Monthly Checks 1. Perform ____ checks 2. Remove spark plug. Check ____ and ______. Clean, regap or replace if necessary.

Gap and condition

Monthly Checks 3. Inspect _____ ______for cracks and/or leaks. 4. Inspect the _____ _______for leaks, cracks or soft fuel lines. DO NOT operate chain saw if a fuel leak exists.

Engine case Fuel assembly

Monthly Checks 5. If a tank of fuel has not been used in the previous ___ days, drain fuel and refill with fresh fuel mix.

30 days

Monthly Checks 6. Remove ___ ____ ______Check air cleaner for tears and general condition. 7. Inspect security of _______ and all linkage.

Air cleaner housing Carburetor

Solvent may be used for cleaning. _____ shall not be used.

Water

NOTE Petroleum based solvents, including kerosene, used to clean tar from chain saw parts shall not be applied in ______form.

Atomized

CAUTION Failure to clean all molten tar and debris from cylinder and head fins WILL result in

Overheating

STIHL 038 MAGNUM - ___ cubic inch engine - ___ kilowatt of power developed at _____ rpm - _____ horsepower

4.4 cubic inch 3.5 kilowatt @9000rpm 4.69 hp

STIHL 038 MAGNUM horsepower - Idles between _____ rpm and _____ rpm - Clutch engages at ______ rpm - Latch throttle position develops _____ rpm

2400 and 2600 300rpm 7000rpm

STIHL 038 MAGNUM Fully automatic ______ ______ - ____ ____ piston ported engine

Chain lubrication Two stroke

STIHL 038 MAGNUM - Dual chain brake feature 1. ______ Chain brake 2. Automatic ______ chain brake Weight

Manual Inertia 19lbs

The _____ _____ ______, located to the left side of the rear handle, controls the ______ engine functions.

Master control level Three

The "start" position provides the _________ position

Half throttle

Continue cranking engine smartly with short pulls. When the engine runs, squeeze the throttle trigger to disengage tile master control switch into the "______" position (located between "_____" and "____").

Normal Start and stop

The mass moment of inertia on the front ____ ______also engages the chain brake in certain situations (any sharp, abnormal movement).

Hams guard

Prior to disassembling the chain saw if your truck company does not have a second chain saw, remember to place the _____ ______ _____on the rotary saw and notify company personnel.

Wood cutting blade

note the position of the guide bar and ______ it when reassembling.

Invert

Inspect chain sprocket for grooves exceeding ____" in depth.

1/16

How many sore screws do you need

5 metric