Jonsered 70C 用户手册

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页码 40
 
10 – 
 
English
 
SAFETY INSTRUCTIONS
 
Muffler
 
Never use a machine that has a faulty muffler.
Regularly check that the muffler is securely attached to the 
machine.
If the muffler on your machine is fitted with a spark arrestor 
mesh this must be cleaned regularly. A blocked mesh will 
cause the engine to overheat and may lead to serious 
damage.
 
Never use a muffler if the spark arrestor mesh is missing 
or defective.
 
Cutting equipment
 
This section describes how to choose and maintain your 
cutting equipment in order to:
Reduce the risk of kickback.
Reduce the risk of the chain breaking or jumping.
Obtain maximum cutting performance.
Extend the life of cutting equipment.
 
General rules
 
 
Only use cutting equipment recommended by us! 
 
 
See the Technical data section. 
 
Keep the chain’s cutting teeth properly sharpened!  
Follow our instructions and use the recommended file 
gauge.
 
 A damaged or badly sharpened chain increases 
the risk of accidents.
 
Maintain the correct raker clearance!  Follow our 
instructions and use the recommended raker gauge.
 
 
Too large a clearance increases the risk of kickback.
 
Keep the chain properly tensioned!
 
 If the chain is slack 
it is more likely to jump off and lead to increased wear on 
the bar, chain and drive sprocket.
 
Keep cutting equipment well lubricated and properly 
maintained!
 
  A poorly lubricated chain is more likely to 
break and lead to increased wear on the bar, chain and 
drive sprocket.
 
Cutting equipment designed to minimise 
kickback
 
The only way to avoid kickback is to make sure that the 
kickback zone of the bar never touches anything.
By using cutting equipment with ”built-in” kickback reduction 
and keeping the chain sharp and well-maintained you can 
reduce the effects of kickback.
 
Bar
 
The smaller the tip radius the smaller the kickback zone and 
the lower the chance of kickback.
!
 
WARNING! Never use a machine with faulty 
safety equipment. The machine’s safety 
equipment must be checked and maintained 
as described in this section. If your machine 
fails any of these checks contact your 
service agent to get it repaired.
!
 
WARNING! Faulty cutting equipment or the 
wrong combination of bar and chain 
increases the risk of kickback! Use only the 
bar and chain combinations that we 
recommend. See the Technical data section.