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© 4/2013 ECHO Inc.
SAFETY SRM-225U
• Maintain good blood circulation by performing vigorous arm exercises during frequent work breaks, and 
also by not smoking.
• Limit the hours of operation. Try to fill each day with jobs where operating the unit 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 Injuries
It is believed that overusing the muscles and tendons of the 
fingers, hands, arms, and shoulders may cause soreness, 
swelling, numbness, weakness, and extreme pain in those 
areas. Certain repetitive hand activities may put you at a high 
risk for developing 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. Instead try to maintain a straight wrist 
position. Also, when grasping, use your whole hand, not just the thumb and index finger.
• Take periodic breaks to minimize repetition and rest your hands.
• Reduce the speed and force with which you do the repetitive movement.
• Do exercise to strengthen the hand and arm muscles.
• Immediately stop using all power equipment and consult a doctor if you feel tingling, numbness, or pain in 
the fingers, hands, wrists, or arms. The sooner RSI/CTS is diagnosed, the more likely permanent nerve 
and muscle damage can be prevented.
 Do not operate this product indoors or in inadequately ventilated areas. Engine exhaust contains 
poisonous emissions and can cause serious injury or death.
Read the Manuals
• Provide all users of this equipment with the Operator’s Manual 
and Safety Manual for instructions on Safe Operation.
Clear the Work Area
• Spectators and fellow workers must be warned, and children 
and animals prevented from coming nearer than 15 m (50 ft.) 
while the unit is in use.
Keep a Firm Grip
• Hold both handles with thumbs and fingers encircling the 
grips.