Maintenance - TrimmerPlus LE720 Operator's Manual

WARNING:
To prevent serious injury, never perform
maintenance or repairs while the unit is running. Always
allow the unit to cool before servicing or repairing the unit.
Disconnect the spark plug wire to prevent the unit from
starting accidentally.
NOTE: Some maintenance procedures may require special tools or
skills. If you are unsure about these procedures, take the unit to
a qualified service dealer.
REPLACING THE EDGER BLADE
1. Align the output shaft hole with the locking rod slot. Insert the
lock ing rod through the locking rod slot and into the output shaft
hole (Fig. 7).
2. Keep the locking rod in place by holding it next to the shaft
housing (Fig.8).
3. While hold ing the lock ing rod, loosen the lock nut by turning it
clock wise with a 13 mm wrench (Fig. 9).
4. Remove the locking rod. Remove the lock nut, blade retainer
and edger blade (Fig. 10). Keep the lock nut and blade retainer
for installing the new edger blade.
5. Install the new edger blade, blade retainer and lock nut (Fig. 10).
6. Align the output shaft hole with the locking rod slot. Insert the
lock ing rod through the locking rod slot and into the output shaft
hole (Fig. 7).
7. Keep the locking rod in place by holding it next to the shaft
housing (Fig.8).
8. While holding the locking rod, tighten the lock nut by turning it
counterclockwise (Fig. 9). Make sure that the edger blade stays
flat and centered against the output shaft while tightening the
lock nut.
If you have a torque wrench, tighten the lock nut to 325-335
in.•lbs (37-38 N•m).
If you do not have a torque wrench, tighten the lock nut with a 13
mm wrench, until the lock nut presses against the blade retainer
and the edger blade is snug. Make sure the edger blade is
installed correctly, then rotate the nut an additional 1/4-1/2 turn.
9. Remove the locking rod.
WARNING:
Make sure the blade is flat against the
output shaft after the lock nut is tightened. If the blade is
off-cen ter, the unit will be dam aged by vibration, and the
blade may fly off, which can cause serious personal in ju ry.

MAINTENANCE

Output Shaft Hole
Locking Rod
Locking Rod
Edger Blade
8
Output Shaft
Locking Rod Slot
Fig. 7
Shaft Housing
Fig. 8
Tighten
Loosen
Fig. 9
Lock Nut
Blade Retainer
Locking Rod
Fig. 10