Training Bulletin 032- Chainsaw Flashcards
The following safety equipment shall be used in conjunction with chain saw operations at all times:
- Gloves
- Goggles
- Helmet
- Turnout coat or brush jacket
What SHALL be worn by ALL members involved in a cutting operation?
Eye protection
What two ways can the chain break be engaged on the chainsaw?
- Manual
- Automatic
Automatic engagement most often occurs when the chain saw kicks back, causing the left hand to strike the hand guard. This occurs very quickly and the brake engages within ___ of a second.
1/10 of a second
True or false? During incidents or limited man power, members can use the chain brake hand guard as a carrying handle.
False. Never use the chain brake hand guard as a carrying handle.
Under what circumstance can members operate a chain saw at speeds above idle when the chain brake is engaged?
None. Engine damage may occur
cutting is an operation involving a minimum of ___ members
2 members. Operator and safety person
The safety member must maintain contact with the operator at all times. An effective way for the safety member to remain in contact with the operator is to use an ____________ grip on an ___________, ________/ _________etc.
UNDERHAND
Axe scabbard belt, BA frame / webbing
Refueling of chain saws shall be done in a ______________ area. ________ refuel chain saws indoors or in quarters.
Well vented
NEVER
Do not operate chain saws at continuous full RPM without a “load” on the chain.
Do not attempt to start chain saw with chain brake engaged.
Flooded cylinder - use following procedure:
a. Place on/off switch in “off” position
b. Push in choke - ensure that the choke is not engaged
c. Pull starter cord 4 to 5 times
d. Turn switch “on”. Use normal starting procedure.
Once the structural members (rafters, joists, etc.) have been located, the chain saw may be lowered to approximately ___ degree to the cutting surface for continued cutting.
45 degrees
Safe depth of cut will depend on four factors:
- Type of construction
- Thickness of roof covering
- Thickness of decking
- Intended operations
If carbide tips become damaged, it will be necessary to replace the chain when:
4 criteria
- Missing/damaged tips on 3 or more cutters in a row.
- Missing /damaged tips on 6 or more cutters at random.
- Cracked/broken tie straps
- Dull chain
Dull chains should be replaced when a radius on the cutting edge is visible to the naked eye.
During extended cutting operations, check chain tension every ___ minutes.
Few minutes
To adjust tension on the chain, turn tension screws ______ to tighten.
Clockwise
If a tank of fuel on a chainsaw has not been used in the previous ___ days, drain fuel and refill with fresh fuel mix.
30 days
STIHL 038 MAGNUM engine size?
4.4 cubic in.
STIHL 038 MAGNUM horsepower?
4.69 hp
STIHL 038 MAGNUM idles between _____ and _____?
2,400 and 2,600 RPM
STIHL 038 MAGNUM clutch engages at?
3,000 rpm
STIHL 038 MAGNUM weight?
19 lbs
What three important functions than must be performed prior to disassembling the chain saw.
- Put spare chainsaw in service or wood blade on rotary saw
- note the position of the guide bar and invert it when reassembling.
- place the ignition switch to “off” for the cleaning process.
During disassembly of chainsaw, Inspect chain sprocket for grooves exceeding ___ in depth.
1/16”