Echo SRM-4300, Руководство оператора

Страница: 14 / 24

14 SRM-4300
Installing blade
DANGER
If worn nut and retainers for blade are used, there is a danger of blade
getting loose.
Replace them with new ones.
CAUTION
• Fasten output shaft using locking tool securely in order to avoid the
possibility of output shaft rotating when mounting cutting blade which will
prevent the cutting blade fastening nut from being tightened suffi ciently.
• Wear gloves to reduce the risk of injury caused by unintentional contact
with the blade.
NOTE
Check to be sure the locking tool is fully engaged to prevent the output shaft from
turning.
Inspect blades before installation.
Check for sharpness.
Dull blades increase the risk of blade kickback reactions.
Small cracks can develop into fractures resulting in a piece of blade fl ying off during
operation.
Discard cracked blades no matter how small the crack.
Use a locking tool to prevent the output shaft from turning during blade installation.
Install blade retainer, blade, lower blade retainer and nut fi nger tight.
Tighten the nut (turn anticlockwise) using a socket wrench.
Never fasten while applying your weight.
Otherwise the thread of nut could be broken.
Replace nut and retainers with new ones no matter how small the wear is.
Check positions of attached cutting blade
DANGER
If attached eccentrically, cutting blade is dangerous.
Attach it correctly.
If cutting blade is not correctly attached, it can cause abnormal vibration, injury and
unit failure.
Turn cutting blade with hand to check if cutting blade is in position.
Check positions of attached shield
DANGER
Cutting blade must be inside shield.
Check if cutting blade is inside shield.
If not, correct the position of shield.
Nut
Lower blade retainer
Blade
Blade retainer
Blade retainer
fi xing slot
Locking tool
(Hexagonal wrench)
Tightening direction
Socket
wrench
Blade
Nut Lower blade
retainer
Blade
Blade retainer
Shield
Angle transmission
Blade
Lower blade retainer
Inspect blades
Locking tool
(Hexagonal wrench)