SG 51, SG 71
English
3
All operating and servicing personnel 
should be trained and familiarized with 
the proper handling procedures for the 
chemical products being used, as well 
as with first aid/emergency care, and 
liquid chemical disposal regulations.
WARNING
Do not lend or rent your sprayer without 
the instruction manual. Be sure that 
anyone using it understands the 
information contained in this manual.
WARNING
The chemicals sprayed with your 
backpack sprayer may contain toxic 
and/or caustic substances. Such 
chemicals can be dangerous and cause 
serious or fatal injury to persons and 
animals and/or severe damage to plants 
and the environment.
Avoid direct contact with chemicals. 
Follow the chemical manufacturer’s 
instructions with respect to any contact 
with its product.
Use your backpack sprayer for spraying 
chemicals and other liquids to control 
pests and weeds in fruit, flower and 
vegetable gardens, on trees and bushes 
and on other plants, such as coffee, 
tobacco and cotton. It is also useful in 
the maintenance of young trees, 
controlling the bark beetle and other 
plant diseases.
WARNING
Do not use it for other purposes, since 
misuse may result in personal injury or 
property damage, including damage to 
the sprayer itself.
WARNING
Minors should never be allowed to use 
this backpack sprayer. Bystanders, 
especially children, and animals should 
not be allowed in the area where it is in 
use. Make sure that unauthorized 
persons do not use it.
Most of these safety precautions and 
warnings apply to the use of all STIHL 
backpack sprayers. Different models 
may have different parts and controls. 
See the appropriate section of your 
instruction manual for a description of 
the controls and the function of the parts 
of your model.
Safe use of a backpack sprayer involves
1. the operator
2. the backpack sprayer
3. the use of the backpack sprayer
4. the handling of the chemicals to be 
sprayed.
THE OPERATOR
Physical Condition
You must be in good physical condition 
and mental health and not under the 
influence of any substance (drugs, 
alcohol, etc.) which might impair vision, 
dexterity or judgment. Do not operate 
this backpack sprayer when you are 
fatigued.
WARNING
Be alert – if you get tired, take a break. 
Tiredness may result in loss of 
concentration and control. Working with 
any backpack sprayer can be strenuous. 
If you have any condition that might be 
aggravated by strenuous work, check 
with your doctor before operating this 
backpack sprayer.
Proper Clothing
WARNING
To reduce the risk of injury when 
working with chemical agents, the 
operator should wear proper protective 
apparel when filling, using and cleaning 
the backpack sprayer. Always follow all 
of the chemical manufacturer’s 
instructions with respect to proper eye, 
skin, nose and mouth protection. They 
may differ from and exceed the following 
precautions.