Husqvarna K 770 Operator's Manual page 29

• Remove the upper belt guard.
• Now remove the rear belt guard.
• Replace the drive belt. Turn the belt tensioner (B) to
position "1" to tighten the drive belt.
• Fit the belt guards and tighten the nuts (A) finger
tights. Wiggle the blade guard (E) up and down 3-5
times, and then tighten the nuts (A) with the
combination spanner.
Carburettor
The carburettor is equipped with fixed needles to ensure
the machine always receives the correct mixture of fuel
and air. When the engine lacks power or accelerates
poorly, do the following:
• Check the air filter and replace if necessary. When this
does not help, contact an authorised service
workshop.
MAINTENANCE
B
E
A
Adjusting the idle speed
CAUTION! Contact your dealer/service
!
workshop, if the idle setting cannot be
adjusted so that the blades are
stationary. Do not use the machine until
it has been properly adjusted or repaired.
Start the engine and check the idling setting. When the
carburettor is set correctly the cutting blade should be still
while engine is idling.
• Adjust the idle speed using the T screw. When an
adjustment is necessary, first turn the screw clockwise
until the blade starts to rotate. Now turn the screw
anti-clockwise until the blade stops rotating.
T
Rec. idle speed: 2700 rpm
Starter housing
WARNING! When the recoil spring is
!
wound up in the starter housing it is
under tension and can, if handled
carelessly, pop out and cause personal
injury.
Always be careful when changing the
recoil spring or the starter cord. Always
wear protective goggles.
Changing a broken or worn starter cord
• Loosen the screws that hold the starter against the
crankcase and remove the starter.
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English 29