Shindaiwa Articulated Hedge AHS242 - Manual (Page 16)

16
Cutting performance of your machine de-
pends 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 locknuts at least
one full turn.
2. Tighten each blade shoulder bolt
firmly, and then loosen the shoulder
bolts 1/4 to 1/2 turn.
Locknut
Guide Bar
Cutter
Blades
Shoulder Bolt
Washer
(should turn
freely)
Adjusting cutter blades
Cutter blade adjustment
3. Working from the gearcase end, lock
each bolt in place by firmly tighten-
ing its locknut while preventing the
shoulder bolt from turning.
When shoulder bolt adjustment is cor-
rect, there should be a gap of 0.25–0.50
mm between the cutter blades and the
flat washers, and the flat washer be-
neath each bolt head should turn freely.
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.
Muffler
This unit must never be operated with a faulty or missing
spark arrester or muffler. Make sure the muffler is well
secured and in good condition. A worn or damaged muffler
is a fire hazard and may also cause hearing loss.
Spark Plug
Keep the spark plug and wire connections tight and clean.
Fasteners
Make sure nuts, bolts, and screws (except carburetor
adjusting screws) are tight.
WARNING!
Before performing any mainte-
nance, repair, or cleaning work on the
unit, make sure the engine and cutting
attachment are completely stopped.
Disconnect the spark plug wire before
performing service or maintenance.
WARNING!
Non-standard accessories, cut-
ting attachment, or replacement parts
may not operate properly with your unit
and may cause damage and lead to per-
sonal injury.
IMPORTANT!
MAINTENANCE, REPLACEMENT OR REPAIR OF EMISSION CONTROL DEVICES AND SYSTEMS MAY BE PERFORMED
BY ANY REPAIR ESTABLISHMENT OR INDIVIDUAL; HOWEVER, WARRANTY REPAIRS MUST BE PERFORMED BY A
DEALER OR SERVICE CENTER AUTHORIZED BY ECHO, INC. THE USE OF PARTS THAT ARE NOT EQUIVALENT IN
PERFORMANCE AND DURABILITY TO AUTHORIZED PARTS MAY IMPAIR THE EFFECTIVENESS OF THE EMISSION
CONTROL SYSTEM AND MAY HAVE A BEARING ON THE OUTCOME OF A WARRANTY CLAIM.
General maintenance
NOTE:
Using non-standard replacement parts could invalidate your Shindaiwa warranty.