GB
4
3. Line up the hole in output shaft (A) with the locking rod
slot. Insert the locking rod (B) through the slot into the
output shaft hole (Fig. 4B).
4.
While holding the locking rod, loosen the nut on the
blade by turning it clockwise with a 5/8” wrench (Fig.
4C). Remove the nut, retaining washer and blade.
Keep the nut and blade retainer for installation.
5.
Install the new blade (A), blade retainer (B) and nut
(C) (Fig. 4D). Insert the locking rod through the slot
into the output shaft hole. Make sure that the blade
stays flat and centered against the output shaft while
tightening the lock nut counterclockwise (Fig. 4E).
6.
If you have a torque wrench, tighten the nut to 325-
335 in/lbs (37-38 N/m), while holding the locking rod
in the slot.
If you do not have a torque wrench, hold the locking
rod in the slot. Rotate the nut counterclockwise with a
5/8” closed-end or socket wrench, until the nut press-
es against the washer and the blade is snug. Make
sure the blade assembly is installed correctly, then
rotate the nut an additional 1/4-1/2 turn (Fig. 4E).
7.
Remove the locking rod.
A
Fig. 4B
Fig. 4C
B
B
Fig. 4D
Fig. 4E
A
C
WARNING:
Verify the blade is flat against the
output shaft after the nut is tightened. If the
blade is off-center, the unit will be damaged
by vibration, and the blade may fly off, which
can cause serious personal injury.
