Hyd-Mech PH 211, Use And Maintenance Manual

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"
remove the rear blade guard by undoing the two fixing screws using an Allen
key;
"
wear protective gloves when changing the blade;
"
remove the worn blade by sliding it off the flywheels and front and rear heads;
"
fit the new blade into the front blade guide head;
"
make sure the back of the blade is facing the flywheel stop and that the teeth
along the lower part of the blade are inclined towards the head pivot.
"
Make sure there is a small amount of play between the blade and guide plate
inserts;
"
repeat the above sequence of steps on the rear blade guide head;
"
fit the blade on the flywheels and remount the front and rear blade guards;
"
close the cutting head cover, correctly tension the blade and power up the ma-
chine.