Shindaiwa Articulated Hedge AH242 - Manual (Page 15)

15
Cutting performance of your machine
depends a great deal on proper cut-
ter blade adjustment. Properly adjusted
blades will oscillate freely yet help pre-
vent 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
tightening its locknut while prevent-
ing 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 beneath 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.
WARNING!
Before performing any main-
tenance, 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 personal 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 PER-
FORMANCE AND DURABILITY TO AUTHORIZED PARTS MAY IMPAIR THE EFFECTIVENESS OF THE EMISSION CON-
TROL 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.
Muffler
This unit must never be operated with a faulty or miss-
ing 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.