Echo BCLS-510ES Operator's Manual page 21

1. Blade
1. Socket wrench
2. Locking tool
2. Blade
Before you start
Insert locking tool into a hole located on the right side of angle
transmission while forcing retainer spring to the left side. Insert
locking tool further into blade retainer fixing slot to fix output shaft.
Fasten output shaft using locking tool securely in order to
avoid the possibility of output shaft rotating when mount-
ing cutting blade which will prevent the cutting blade fas-
tening nut from being tightened sufficiently.
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 cup with new ones no matter how small the wear
is.
19
CAUTION