Muf Er Maintenance; Cutter Blade Adjustment - Shindaiwa HT230 Owner's/Operator's Manual

Muf er Maintenance

Seasonally (or whenever you experience
hard starting or poor performance):
WARNING!
Never operate this machine
with a damaged or missing
muf er or spark arrester? Operating
with missing or damaged exhaust
components is a re hazard, and
may also damage your hearing.
■ Hard starting or a gradual loss of
performance can be caused by carbon
deposits lodged in the muf er's spark
arrester screen. Remove the spark
arrester screw and remove the screen
from the muf er with the point of a
small pliers. Thoroughly clean the
screen with a stiff bris e brush. A
damaged or otherwise unserviceable
screen must be replaced. Reinstall by
gently tapping the screen into place and
retightening the screw.

Cutter Blade Adjustment

Cutter performance of this unit depends in
great measure on cutter blade clearance.
Properly adjusted blades will oscillate
freely yet help prevent binding of cut
material between blades. Adjust blades as
follows:
1. Loosen all blade locknuts at least one
full turn.
2. Tighten each blade shoulder bolt rmly,
and then loosen the shoulder bolts 1/4 to
1/2 turn.
3. Working from the gearcase end, lock
each bolt in place by rmly tightening
its locknut while preventing the shoulder
bolt from turning.
When shoulder bolt adjustment is correct,
there should be a gap of 0.25-0.50 mm
between the cutter blades and the at
washers, and the at washer beneath each
bolt head should turn freely.
Arrester Screen
Guide Bar
Cutter Blades
Snoulder
Bolt
WARNING!
The cutter blades are very
sharp! Always wear gloves
when working around the cutter
assembly!
■ If carbon accumulations in the muf er
Muf er
or cylinder are severe or if you do not
notice an improvement in performance
after servicing, return the trimmer to
your Shindaiwa dealer for inspection.
Do not remove the muf er cover, if
necessary, Please consult your dealer.
Arrester
Screw
CAUTION!
Locknut
Operating the hedge trimmer with
worn or improperly adjusted cutters
will reduce cutter performance and
may also damage this unit.
Washer
(shoule turn
freely)
IMPORTANT!
15