Shindaiwa AH254, Руководство владельца/оператора

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19
Lock nut
Washer (should
turn freely)
Maintenance
(continued)
Muffler and spark arrester maintenance
Engine
Cover
Screws
Engine Cover
Muffler
Muffler Gasket
Muffler Bolts
Spark Arrester Screen
Spark Arrester Cover
Cover Screws
1. Remove the engine cover.
If the engine becomes sluggish and low
on power, check and clean the spark
arrester screen.
IMPORTANT!
If you note excessive carbon buildup,
consult with an authorized servicing
dealer.
WARNING!
Never operate the unit with a
damaged or missing muffler or spark
arrester! Operating with a missing
or damaged spark arrester is a fire
hazard and could also damage your
hearing.
2. Remove the muffler.
3. Remove the spark arrester screen
and cover.
4. Clean the screen with a stiff bristle
brush.
5. Inspect the cylinder exhaust port for
any carbon buildup.
6. Reassemble parts in the reverse
order.
Cutting performance of your machine
depends a great deal on proper cutter
blade adjustment. Properly adjusted
blades will oscillate freely yet help
prevent binding of cut material between
blades. Adjust blades as follows:
1. Loosen all blade lock nuts at least
one full turn.
2. Tighten each blade shoulder bolt
firmly, and then loosen the shoulder
bolts 1/4 to 1/2 turn.
Guide Bar
Cutter
Blades
Shoulder Bolt
Adjusting cutter blades
Cutter blade adjustment
3. Working from the gearcase end,
lock each bolt in place by firmly
tightening its lock nut while
preventing the shoulder bolt from
turning.
WARNING!
The cutter blades are
very sharp! Always wear gloves
when working around the cutter
assembly.
CAUTION!
Operating the trimmer with worn or
improperly adjusted cutters will reduce
cutter performance and may also
damage your machine. Never operate
the machine with damaged or worn
cutters.
4. When shoulder bolt adjustment is
correct, there should be a gap of
0.25–0.50 mm (0.010 - 0.020 in.)
between the cutter blades and the
flat washers, and the flat washer
beneath each bolt head should turn
freely.