Echo GRASS/WEED TRIMMER BRUSHCUTTER and CLEARING SAW manual Glossary, Handles

GLOSSARY

ANSI Z87.1 - The established standard for eye protection devices, set forth by the American National Standards Institutes (ANSI).

BARRIER - A device, such as a bar handle, U-handle or harness, which restrains the unit’s cutting attachment from moving rearward and making inadvertent contact with the operator’s legs.

BLADE RETAINER - A mechanism which holds the brushcutter blade to the driving member.

BLADE THRUST - Another name for Kickout.

BOUNCE - The ricochet of a flying object from any surface, particularly from the ground, rocks or buildings.

BRUSH BLADE - A multi-tooth circular saw blade for sawing heavy brush with SRM models only.

CUTTING CIRCLE - The blade perimeter or the circle formed by a cutting line.

CUTTING HEAD - The assembly that includes the flexible cutting line or a blade. Flexible cutting line heads include:

•BUMP-ADVANCE HEAD - Extends the line through a bumping mechanism.

•CENTRIFUGAL-ADVANCEHEAD -Extendstheline through speed changes.

•MANUAL HEAD - A flexible line suspension mechanism requiring manual adjustments of the line length.

DANGERZONE-A15-meter(orapproximately50-foot)radiussurround- ing the operator of the unit. No one else but the operator should be in the Danger Zone while the unit is being used. (See Risk Zone.)

DEBRIS SHIELD - The shield just behind the cutting head. Also called a cutting attachment shield.

DEFLECTION - A glance, or bounce, or change of path of a thrown object off a hard surface.

EDGING - Trimming the grass along an edge such as a sidewalk.

FACE MASK - A mask to shield face from flying objects. Face masks alone do not provide adequate protection. Eye protection goggles meeting ANSI Standard Z87.1 must be worn underneath. (See “GOGGLES.”)

FACE SHIELD - A device worn in front of the eyes and a portion of, or all of, the face to supplement protection afforded by a primary protective device. Face shields alone do not provide adequate protection. (See “GOGGLES.”)

GOGGLES - A device covering eyes and sockets, flush against the face, having impact-resistant lenses. Such goggles must meet the ANSI Z87.1 Standard (“Z87” is stamped on the goggles).

GT - Grass Trimmer

GRASS TRIMMER - A grass and weed-cutting unit with a nylon line cutting head. Not to be used with a metal blade.

HARNESS - The adjustable strapping by which the unit is suspended from the operator. A SHOULDER/WAIST HARNESS must be worn by the operator when the unit is equipped with a blade for cutting. A SHOULDER HARNESS when blade-cutting with a bar handle or U- handle is acceptable. Also, it is advisable to wear a harness when using a flexible line trimmer to help reduce fatigue.

HEARING PROTECTION - Ear muff or plug-type devices worn to reduce exposure to harmful noise while permitting an operator to hear certain sounds.

HIT - When a thrown object hits someone or something and is capable of injury or penetration.

IMPACT SPEED - The speed of a striking object.

IMPACT ENERGY - The energy from a thrown object that is transferred to another object or person during impact.

HANDLES:

•BAR HANDLE - A straight metal handle, standard on some SRM units.

•D-HANDLE- A looped handle.

•U-HANDLE- Has the configuration of a U-shaped bicycle handle bar which reduces the working effort compared to a D-handle.

KICK OUT - When the unit dangerously propels itself out of a cut due to blade binding. The direction is opposite the blade rotation at point of contact. (See page 22.) Also called Blade Thrust.

MAXI-CUTWEEDCUTTER-A3-bladeflail-typedevicewhichcan be used in place of the nylon line head.

PUSH & PULL - Forces exerted by the blade. If the blade pulls, the unit will pull away from the operator. If the blade pushes, the unit pushes back towards the operator. (See page 22.)

QUICK-RELEASEMECHANISM-Amechanismcontrolledbythe operator to quickly release the unit from the harness in case of emergency.

RICOCHET - A thrown object which glances off a surface and takes a new path.

RISK ZONE - The area beyond the 15-meter (or approximately 50- foot) radius surrounding the operator of the unit. Bystanders in the Risk Zone should wear eye protection against thrown objects. Risk diminishes with distance from the operator. (See Danger Zone).

SRM - Shoulder Rotary Mower

SHOULDER ROTARY MOWER - A flexible-line grass and weed- cutting unit which can be converted for use with a blade.

SCALPING - The very close cutting of vegetation from the earth. A trimmer is used to clear growth around trees or shrubs, or from sidewalks.

SCYTHING - An arcing motion to cut weeds by swinging the tool head from side to side.

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