Operator safety, Vibration and cold, Repetitive stress injury – Echo CS-352 User Manual

Page 8: Eye and hearing protection, Wear proper clothing, Hot humid weather, Avoid hot surfaces, Warning

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8

CS-352

VIBRATION AND COLD

• It is believed that a condition called Raynaud’s Phe-

nomenon, which affects the fingers of certain individu-

als, may be brought about by exposure to vibration

and cold. Exposure to vibration and cold may cause

tingling and burning followed by loss of color and

numbness in the fingers. The following precautions

are strongly recommended because the minimum

exposure which might trigger the ailment is unknown.

• Keep your body warm, especially the head and neck,

feet and ankles and hands and wrists.

• Maintain good blood circulation by performing vigor-

ous arm exercises during frequent work breaks and

also by not smoking.

• Limit the number of hours of operation. Try to fill each

day with jobs where operating the chain saw, or other

hand-held power equipment is not required.

• If you experience discomfort redness and swelling of

the fingers, followed by whitening and loss of feeling,

consult your physician before further exposing yourself

to cold and vibration.

REPETITIVE STRESS INJURY

• It is believed that over-using the muscles and tendons

of the finger, hands, arms and shoulders may cause

soreness, swelling, numbness, weakness and extreme

pain to the areas just mentioned. Certain repetitive

hand activities may put you at a high risk for develop-

ing a repetitive stress injury (RSI).

• An extreme RSI condition is Carpal Tunnel Syndrome

(CTS) which could occur when your wrist swells and

squeezes a vital nerve that runs through the area.

Some believe that prolonged exposure to vibration

may contribute to CTS.

CTS can cause severe pain for months or even years.

To reduce the risk of RSI/CTS, do the following:

• Avoid using your wrist in a bent, extended or twisted

position.

• Take periodic breaks to minimize repetition and rest

your hands.

• Reduce the speed and force in which you do the re-

petitive movement.

• Do exercises to strengthen hand and arm muscles.

• See a doctor if you feel tingling, numbness or pain in

your fingers, hands, wrists or arms. The sooner RSI/

CTS is diagnosed, the more likely permanent nerve

and muscle damage can be prevented.

EYE AND HEARING PROTECTION

• Wear eye protection goggles that meet ANSI Z 87.1

requirements. Goggles meeting the requirements

have the mark “Z 87” stamped on them.

• Wear hearing protection. If this guideline is not fol-

lowed, hearing loss can occur. ECHO recommends

wearing hearing protection at all times.

WEAR PROPER CLOTHING

• Snug fitting durable clothing should be worn. Pants

should have long legs.

• DO NOT WEAR SHORTS. Do not wear loose fitting

clothing, scarves, neckties, jewelry or any item that

may become tangled in surrounding growth or the

chain saw itself.

• Wear shoes with non-skid soles. DO NOT wear open

toed shoes or operate unit barefooted.

• Wear no-slip, heavy duty work gloves to improve your

grip on the chain saw handles. The gloves also help

reduce the transmission of machine vibration to your

hands.

• Keep long hair away from engine and air intake. Re-

tain hair with cap or net.

HOT HUMID WEATHER

• Heavy protective clothing can increase operator fa-

tigue which may lead to heat stroke. Schedule heavy

work for early morning, or late afternoon hours when

temperatures are cooler.

AVOID HOT SURFACES

• During operation, the muffler or catalytic muffler and

surrounding cover become hot.

• Never suspend the saw on a lanyard with the engine

running.

• Always use the saw from the right-hand side of your

body -

NEVER from the left side.

• Always wear proper safety clothing to protect your

lower body from sharp saw chain and hot muffler.

• Always keep exhaust area clear of flammable debris

during transportation or when storing, otherwise seri-

ous property damage or personal injury may result.

OPERATOR SAFETY

warning

The ignition components of this machine generate an electromagnetic field during operation which may interfere

with some pacemakers. To reduce the risk of serious or fatal injury, persons with pacemakers should consult

with their physician and the pacemaker manufacturer before operating this machine. In the absence of such

information, ECHO does not recommend the use of ECHO products by anyone who has a pacemaker.

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