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NOTE:
This unit is shipped with Holder A, the
blade retainer, Holder B, shaft bolt, and
bolt guard installed. The shaft bolt is a
LEFT-HAND thread. Remove it by turning
CLOCKWISE!
Position the gearcase with the out-1.
put shaft facing up and remove both
holders.
Position Holder A as shown and slide it 2.
onto the gearcase shaft.
Install Holder B on the gearcase shaft. 3.
The machined boss on Holder A must
engage with the recess on Holder B.
Rotate the gearshaft and holders until 4.
the hole in Holder A aligns with the
matching hole in the gearcase flange,
and then lock the holder to the gearcase
by inserting the long end of the hex
wrench through both holes.
Holder A
Holder B
Hex Wrench
Hex Wrench
Hand-tighten
trimmer head
Throttle Lever Free Play
4-6 mm
(3/16”-1/4”)
Throttle Free Play
Shaft Bolt
(not used)
Bolt Guard
(not used)
Gearcase
Shaft
Install trimmer head
Lock the holder to the gearcase by inserting
the long end of the hex wrench through both
holes
Thread and securely tighten the trimmer head
into the gearcase shaft using hand-pressure
The unit should now be
completely assembled and ready
for use with a trimmer head.
Using a counter-clockwise rotation 5.
and hand pressure alone, thread and
securely tighten the trimmer head into
the gearcase shaft.
Remove the hex wrench from the 6.
gearcase and holders.
Remove air cleaner cover
Lock Nut
Cable
Adjuster
Adjust as required for 4-6 mm free play
8
Assembly (continued)
Adjust throttle lever free play
The throttle lever free play should be
approximately 4 - 6 mm (3/16” - 1/4”).
Make sure that the throttle lever oper-
ates smoothly without binding. If it
becomes necessary to adjust the lever
free play, follow the procedures and illus-
trations that follow.
Loosen the air cleaner cover knob(s) 1.
and remove the air cleaner cover.
Loosen the lock nut on the cable 2.
adjuster. Turn the cable adjuster in or
out as required to obtain proper free
play 4 - 6 mm.
Tighten the locknut.3.
Reinstall the air cleaner cover.4.